HDFS-8828. Utilize Snapshot diff report to build diff copy list in distcp. (Yufei Gu via Yongjun Zhang)
This commit is contained in:
parent
5e8fe89437
commit
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@ -822,6 +822,9 @@ Release 2.8.0 - UNRELEASED
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HDFS-8884. Fail-fast check in BlockPlacementPolicyDefault#chooseTarget.
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HDFS-8884. Fail-fast check in BlockPlacementPolicyDefault#chooseTarget.
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(yliu)
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(yliu)
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HDFS-8828. Utilize Snapshot diff report to build diff copy list in distcp.
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(Yufei Gu via Yongjun Zhang)
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OPTIMIZATIONS
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OPTIMIZATIONS
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HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than
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HDFS-8026. Trace FSOutputSummer#writeChecksumChunks rather than
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@ -27,6 +27,8 @@
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import org.apache.hadoop.io.IOUtils;
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import org.apache.hadoop.io.IOUtils;
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import org.apache.hadoop.tools.util.DistCpUtils;
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import org.apache.hadoop.tools.util.DistCpUtils;
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import org.apache.hadoop.security.Credentials;
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import org.apache.hadoop.security.Credentials;
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import org.apache.commons.logging.Log;
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import org.apache.commons.logging.LogFactory;
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import java.io.IOException;
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import java.io.IOException;
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import java.lang.reflect.Constructor;
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import java.lang.reflect.Constructor;
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@ -46,7 +48,7 @@
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public abstract class CopyListing extends Configured {
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public abstract class CopyListing extends Configured {
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private Credentials credentials;
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private Credentials credentials;
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static final Log LOG = LogFactory.getLog(DistCp.class);
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/**
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/**
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* Build listing function creates the input listing that distcp uses to
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* Build listing function creates the input listing that distcp uses to
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* perform the copy.
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* perform the copy.
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@ -89,6 +91,7 @@ public final void buildListing(Path pathToListFile,
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config.setLong(DistCpConstants.CONF_LABEL_TOTAL_NUMBER_OF_RECORDS, getNumberOfPaths());
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config.setLong(DistCpConstants.CONF_LABEL_TOTAL_NUMBER_OF_RECORDS, getNumberOfPaths());
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validateFinalListing(pathToListFile, options);
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validateFinalListing(pathToListFile, options);
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LOG.info("Number of paths in the copy list: " + this.getNumberOfPaths());
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}
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}
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/**
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/**
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@ -153,6 +156,7 @@ private void validateFinalListing(Path pathToListFile, DistCpOptions options)
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Text currentKey = new Text();
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Text currentKey = new Text();
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Set<URI> aclSupportCheckFsSet = Sets.newHashSet();
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Set<URI> aclSupportCheckFsSet = Sets.newHashSet();
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Set<URI> xAttrSupportCheckFsSet = Sets.newHashSet();
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Set<URI> xAttrSupportCheckFsSet = Sets.newHashSet();
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long idx = 0;
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while (reader.next(currentKey)) {
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while (reader.next(currentKey)) {
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if (currentKey.equals(lastKey)) {
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if (currentKey.equals(lastKey)) {
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CopyListingFileStatus currentFileStatus = new CopyListingFileStatus();
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CopyListingFileStatus currentFileStatus = new CopyListingFileStatus();
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@ -178,6 +182,12 @@ private void validateFinalListing(Path pathToListFile, DistCpOptions options)
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}
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}
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}
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}
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lastKey.set(currentKey);
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lastKey.set(currentKey);
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if (options.shouldUseDiff() && LOG.isDebugEnabled()) {
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LOG.debug("Copy list entry " + idx + ": " +
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lastFileStatus.getPath().toUri().getPath());
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idx++;
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}
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}
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}
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} finally {
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} finally {
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IOUtils.closeStream(reader);
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IOUtils.closeStream(reader);
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@ -224,9 +234,6 @@ public static CopyListing getCopyListing(Configuration configuration,
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Credentials credentials,
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Credentials credentials,
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DistCpOptions options)
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DistCpOptions options)
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throws IOException {
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throws IOException {
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if (options.shouldUseDiff()) {
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return new GlobbedCopyListing(configuration, credentials);
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}
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String copyListingClassName = configuration.get(DistCpConstants.
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String copyListingClassName = configuration.get(DistCpConstants.
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CONF_LABEL_COPY_LISTING_CLASS, "");
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CONF_LABEL_COPY_LISTING_CLASS, "");
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Class<? extends CopyListing> copyListingClass;
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Class<? extends CopyListing> copyListingClass;
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@ -17,12 +17,9 @@
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*/
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*/
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package org.apache.hadoop.tools;
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package org.apache.hadoop.tools;
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import java.util.ArrayList;
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import java.util.Comparator;
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import java.util.Comparator;
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import java.util.List;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.hdfs.DFSUtil;
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import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
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import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
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/**
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/**
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@ -54,12 +51,19 @@ public int compare(DiffInfo d1, DiffInfo d2) {
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*/
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*/
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private Path tmp;
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private Path tmp;
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/** The target file/dir of the rename op. Null means the op is deletion. */
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/** The target file/dir of the rename op. Null means the op is deletion. */
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final Path target;
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Path target;
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DiffInfo(Path source, Path target) {
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private final SnapshotDiffReport.DiffType type;
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public SnapshotDiffReport.DiffType getType(){
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return this.type;
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}
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DiffInfo(Path source, Path target, SnapshotDiffReport.DiffType type) {
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assert source != null;
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assert source != null;
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this.source = source;
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this.source = source;
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this.target= target;
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this.target= target;
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this.type = type;
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}
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}
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void setTmp(Path tmp) {
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void setTmp(Path tmp) {
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@ -69,22 +73,4 @@ void setTmp(Path tmp) {
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Path getTmp() {
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Path getTmp() {
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return tmp;
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return tmp;
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}
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}
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static DiffInfo[] getDiffs(SnapshotDiffReport report, Path targetDir) {
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List<DiffInfo> diffs = new ArrayList<>();
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for (SnapshotDiffReport.DiffReportEntry entry : report.getDiffList()) {
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if (entry.getType() == SnapshotDiffReport.DiffType.DELETE) {
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final Path source = new Path(targetDir,
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DFSUtil.bytes2String(entry.getSourcePath()));
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diffs.add(new DiffInfo(source, null));
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} else if (entry.getType() == SnapshotDiffReport.DiffType.RENAME) {
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final Path source = new Path(targetDir,
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DFSUtil.bytes2String(entry.getSourcePath()));
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final Path target = new Path(targetDir,
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DFSUtil.bytes2String(entry.getTargetPath()));
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diffs.add(new DiffInfo(source, target));
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}
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}
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return diffs.toArray(new DiffInfo[diffs.size()]);
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}
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}
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}
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@ -175,11 +175,18 @@ public Job createAndSubmitJob() throws Exception {
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job = createJob();
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job = createJob();
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}
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}
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if (inputOptions.shouldUseDiff()) {
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if (inputOptions.shouldUseDiff()) {
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if (!DistCpSync.sync(inputOptions, getConf())) {
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DistCpSync distCpSync = new DistCpSync(inputOptions, getConf());
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if (distCpSync.sync()) {
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createInputFileListingWithDiff(job, distCpSync);
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} else {
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inputOptions.disableUsingDiff();
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inputOptions.disableUsingDiff();
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}
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}
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}
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}
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// Fallback to default DistCp if without "diff" option or sync failed.
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if (!inputOptions.shouldUseDiff()) {
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createInputFileListing(job);
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createInputFileListing(job);
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}
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job.submit();
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job.submit();
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submitted = true;
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submitted = true;
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@ -384,6 +391,22 @@ protected Path createInputFileListing(Job job) throws IOException {
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return fileListingPath;
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return fileListingPath;
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}
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}
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/**
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* Create input listing based on snapshot diff report.
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* @param job - Handle to job
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* @param distCpSync the class wraps the snapshot diff report
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* @return Returns the path where the copy listing is created
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* @throws IOException - If any
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*/
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private Path createInputFileListingWithDiff(Job job, DistCpSync distCpSync)
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throws IOException {
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Path fileListingPath = getFileListingPath();
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CopyListing copyListing = new SimpleCopyListing(job.getConfiguration(),
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job.getCredentials(), distCpSync);
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copyListing.buildListing(fileListingPath, inputOptions);
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return fileListingPath;
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}
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/**
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/**
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* Get default name of the copy listing file. Use the meta folder
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* Get default name of the copy listing file. Use the meta folder
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* to create the copy listing file
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* to create the copy listing file
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@ -614,9 +614,9 @@ public void validate(DistCpOptionSwitch option, boolean value) {
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throw new IllegalArgumentException(
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throw new IllegalArgumentException(
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"Append is disallowed when skipping CRC");
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"Append is disallowed when skipping CRC");
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}
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}
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if ((!syncFolder || !deleteMissing) && useDiff) {
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if ((!syncFolder || deleteMissing) && useDiff) {
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throw new IllegalArgumentException(
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throw new IllegalArgumentException(
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"Diff is valid only with update and delete options");
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"Diff is valid only with update options");
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}
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}
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}
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}
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@ -17,10 +17,10 @@
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*/
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*/
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package org.apache.hadoop.tools;
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package org.apache.hadoop.tools;
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import com.google.common.annotations.VisibleForTesting;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.FileSystem;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.hdfs.DFSUtil;
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import org.apache.hadoop.hdfs.DistributedFileSystem;
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import org.apache.hadoop.hdfs.DistributedFileSystem;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
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import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
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@ -29,6 +29,9 @@
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import java.util.Arrays;
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import java.util.Arrays;
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import java.util.List;
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import java.util.List;
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import java.util.Random;
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import java.util.Random;
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import java.util.EnumMap;
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import java.util.ArrayList;
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import java.util.HashSet;
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/**
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/**
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* This class provides the basic functionality to sync two FileSystems based on
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* This class provides the basic functionality to sync two FileSystems based on
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@ -41,9 +44,26 @@
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* source.s1
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* source.s1
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*/
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*/
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class DistCpSync {
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class DistCpSync {
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private DistCpOptions inputOptions;
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private Configuration conf;
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private EnumMap<SnapshotDiffReport.DiffType, List<DiffInfo>> diffMap;
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private DiffInfo[] renameDiffs;
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static boolean sync(DistCpOptions inputOptions, Configuration conf)
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DistCpSync(DistCpOptions options, Configuration conf) {
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throws IOException {
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this.inputOptions = options;
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this.conf = conf;
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}
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/**
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* Check if three conditions are met before sync.
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* 1. Only one source directory.
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* 2. Both source and target file system are DFS.
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* 3. There is no change between from and the current status in target
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* file system.
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* Throw exceptions if first two aren't met, and return false to fallback to
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* default distcp if the third condition isn't met.
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*/
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private boolean preSyncCheck() throws IOException {
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List<Path> sourcePaths = inputOptions.getSourcePaths();
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List<Path> sourcePaths = inputOptions.getSourcePaths();
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if (sourcePaths.size() != 1) {
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if (sourcePaths.size() != 1) {
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// we only support one source dir which must be a snapshottable directory
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// we only support one source dir which must be a snapshottable directory
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@ -62,26 +82,41 @@ static boolean sync(DistCpOptions inputOptions, Configuration conf)
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throw new IllegalArgumentException("The FileSystems needs to" +
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throw new IllegalArgumentException("The FileSystems needs to" +
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" be DistributedFileSystem for using snapshot-diff-based distcp");
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" be DistributedFileSystem for using snapshot-diff-based distcp");
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}
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}
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final DistributedFileSystem sourceFs = (DistributedFileSystem) sfs;
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final DistributedFileSystem targetFs = (DistributedFileSystem) tfs;
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final DistributedFileSystem targetFs= (DistributedFileSystem) tfs;
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// make sure targetFS has no change between from and the current states
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// make sure targetFS has no change between from and the current states
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if (!checkNoChange(inputOptions, targetFs, targetDir)) {
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if (!checkNoChange(targetFs, targetDir)) {
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// set the source path using the snapshot path
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// set the source path using the snapshot path
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inputOptions.setSourcePaths(Arrays.asList(getSourceSnapshotPath(sourceDir,
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inputOptions.setSourcePaths(Arrays.asList(getSourceSnapshotPath(sourceDir,
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inputOptions.getToSnapshot())));
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inputOptions.getToSnapshot())));
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return false;
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return false;
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}
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}
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return true;
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}
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public boolean sync() throws IOException {
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if (!preSyncCheck()) {
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return false;
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}
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if (!getAllDiffs()) {
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return false;
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}
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List<Path> sourcePaths = inputOptions.getSourcePaths();
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final Path sourceDir = sourcePaths.get(0);
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final Path targetDir = inputOptions.getTargetPath();
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final FileSystem tfs = targetDir.getFileSystem(conf);
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final DistributedFileSystem targetFs = (DistributedFileSystem) tfs;
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Path tmpDir = null;
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Path tmpDir = null;
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try {
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try {
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tmpDir = createTargetTmpDir(targetFs, targetDir);
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tmpDir = createTargetTmpDir(targetFs, targetDir);
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DiffInfo[] diffs = getDiffs(inputOptions, sourceFs, sourceDir, targetDir);
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DiffInfo[] renameAndDeleteDiffs = getRenameAndDeleteDiffs(targetDir);
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if (diffs == null) {
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if (renameAndDeleteDiffs.length > 0) {
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return false;
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}
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// do the real sync work: deletion and rename
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// do the real sync work: deletion and rename
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syncDiff(diffs, targetFs, tmpDir);
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syncDiff(renameAndDeleteDiffs, targetFs, tmpDir);
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}
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return true;
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return true;
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} catch (Exception e) {
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} catch (Exception e) {
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DistCp.LOG.warn("Failed to use snapshot diff for distcp", e);
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DistCp.LOG.warn("Failed to use snapshot diff for distcp", e);
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@ -95,11 +130,64 @@ static boolean sync(DistCpOptions inputOptions, Configuration conf)
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}
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}
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}
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}
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private static String getSnapshotName(String name) {
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/**
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* Get all diffs from source directory snapshot diff report, put them into an
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* EnumMap whose key is DiffType, and value is a DiffInfo list. If there is
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* no entry for a given DiffType, the associated value will be an empty list.
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*/
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private boolean getAllDiffs() throws IOException {
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List<Path> sourcePaths = inputOptions.getSourcePaths();
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final Path sourceDir = sourcePaths.get(0);
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try {
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DistributedFileSystem fs =
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(DistributedFileSystem) sourceDir.getFileSystem(conf);
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final String from = getSnapshotName(inputOptions.getFromSnapshot());
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final String to = getSnapshotName(inputOptions.getToSnapshot());
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SnapshotDiffReport report = fs.getSnapshotDiffReport(sourceDir,
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from, to);
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this.diffMap = new EnumMap<>(SnapshotDiffReport.DiffType.class);
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for (SnapshotDiffReport.DiffType type :
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SnapshotDiffReport.DiffType.values()) {
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diffMap.put(type, new ArrayList<DiffInfo>());
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}
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for (SnapshotDiffReport.DiffReportEntry entry : report.getDiffList()) {
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// If the entry is the snapshot root, usually a item like "M\t."
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// in the diff report. We don't need to handle it and cannot handle it,
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// since its sourcepath is empty.
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if (entry.getSourcePath().length <= 0) {
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continue;
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}
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List<DiffInfo> list = diffMap.get(entry.getType());
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if (entry.getType() == SnapshotDiffReport.DiffType.MODIFY ||
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entry.getType() == SnapshotDiffReport.DiffType.CREATE ||
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entry.getType() == SnapshotDiffReport.DiffType.DELETE) {
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final Path source =
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new Path(DFSUtil.bytes2String(entry.getSourcePath()));
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list.add(new DiffInfo(source, null, entry.getType()));
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} else if (entry.getType() == SnapshotDiffReport.DiffType.RENAME) {
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final Path source =
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new Path(DFSUtil.bytes2String(entry.getSourcePath()));
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final Path target =
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new Path(DFSUtil.bytes2String(entry.getTargetPath()));
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list.add(new DiffInfo(source, target, entry.getType()));
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}
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||||||
|
}
|
||||||
|
return true;
|
||||||
|
} catch (IOException e) {
|
||||||
|
DistCp.LOG.warn("Failed to compute snapshot diff on " + sourceDir, e);
|
||||||
|
}
|
||||||
|
this.diffMap = null;
|
||||||
|
return false;
|
||||||
|
}
|
||||||
|
|
||||||
|
private String getSnapshotName(String name) {
|
||||||
return Path.CUR_DIR.equals(name) ? "" : name;
|
return Path.CUR_DIR.equals(name) ? "" : name;
|
||||||
}
|
}
|
||||||
|
|
||||||
private static Path getSourceSnapshotPath(Path sourceDir, String snapshotName) {
|
private Path getSourceSnapshotPath(Path sourceDir, String snapshotName) {
|
||||||
if (Path.CUR_DIR.equals(snapshotName)) {
|
if (Path.CUR_DIR.equals(snapshotName)) {
|
||||||
return sourceDir;
|
return sourceDir;
|
||||||
} else {
|
} else {
|
||||||
@ -108,7 +196,7 @@ private static Path getSourceSnapshotPath(Path sourceDir, String snapshotName) {
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
private static Path createTargetTmpDir(DistributedFileSystem targetFs,
|
private Path createTargetTmpDir(DistributedFileSystem targetFs,
|
||||||
Path targetDir) throws IOException {
|
Path targetDir) throws IOException {
|
||||||
final Path tmp = new Path(targetDir,
|
final Path tmp = new Path(targetDir,
|
||||||
DistCpConstants.HDFS_DISTCP_DIFF_DIRECTORY_NAME + DistCp.rand.nextInt());
|
DistCpConstants.HDFS_DISTCP_DIFF_DIRECTORY_NAME + DistCp.rand.nextInt());
|
||||||
@ -118,7 +206,7 @@ private static Path createTargetTmpDir(DistributedFileSystem targetFs,
|
|||||||
return tmp;
|
return tmp;
|
||||||
}
|
}
|
||||||
|
|
||||||
private static void deleteTargetTmpDir(DistributedFileSystem targetFs,
|
private void deleteTargetTmpDir(DistributedFileSystem targetFs,
|
||||||
Path tmpDir) {
|
Path tmpDir) {
|
||||||
try {
|
try {
|
||||||
if (tmpDir != null) {
|
if (tmpDir != null) {
|
||||||
@ -133,8 +221,7 @@ private static void deleteTargetTmpDir(DistributedFileSystem targetFs,
|
|||||||
* Compute the snapshot diff on the given file system. Return true if the diff
|
* Compute the snapshot diff on the given file system. Return true if the diff
|
||||||
* is empty, i.e., no changes have happened in the FS.
|
* is empty, i.e., no changes have happened in the FS.
|
||||||
*/
|
*/
|
||||||
private static boolean checkNoChange(DistCpOptions inputOptions,
|
private boolean checkNoChange(DistributedFileSystem fs, Path path) {
|
||||||
DistributedFileSystem fs, Path path) {
|
|
||||||
try {
|
try {
|
||||||
SnapshotDiffReport targetDiff =
|
SnapshotDiffReport targetDiff =
|
||||||
fs.getSnapshotDiffReport(path, inputOptions.getFromSnapshot(), "");
|
fs.getSnapshotDiffReport(path, inputOptions.getFromSnapshot(), "");
|
||||||
@ -151,22 +238,7 @@ private static boolean checkNoChange(DistCpOptions inputOptions,
|
|||||||
return false;
|
return false;
|
||||||
}
|
}
|
||||||
|
|
||||||
@VisibleForTesting
|
private void syncDiff(DiffInfo[] diffs,
|
||||||
static DiffInfo[] getDiffs(DistCpOptions inputOptions,
|
|
||||||
DistributedFileSystem fs, Path sourceDir, Path targetDir) {
|
|
||||||
try {
|
|
||||||
final String from = getSnapshotName(inputOptions.getFromSnapshot());
|
|
||||||
final String to = getSnapshotName(inputOptions.getToSnapshot());
|
|
||||||
SnapshotDiffReport sourceDiff = fs.getSnapshotDiffReport(sourceDir,
|
|
||||||
from, to);
|
|
||||||
return DiffInfo.getDiffs(sourceDiff, targetDir);
|
|
||||||
} catch (IOException e) {
|
|
||||||
DistCp.LOG.warn("Failed to compute snapshot diff on " + sourceDir, e);
|
|
||||||
}
|
|
||||||
return null;
|
|
||||||
}
|
|
||||||
|
|
||||||
private static void syncDiff(DiffInfo[] diffs,
|
|
||||||
DistributedFileSystem targetFs, Path tmpDir) throws IOException {
|
DistributedFileSystem targetFs, Path tmpDir) throws IOException {
|
||||||
moveToTmpDir(diffs, targetFs, tmpDir);
|
moveToTmpDir(diffs, targetFs, tmpDir);
|
||||||
moveToTarget(diffs, targetFs);
|
moveToTarget(diffs, targetFs);
|
||||||
@ -176,7 +248,7 @@ private static void syncDiff(DiffInfo[] diffs,
|
|||||||
* Move all the source files that should be renamed or deleted to the tmp
|
* Move all the source files that should be renamed or deleted to the tmp
|
||||||
* directory.
|
* directory.
|
||||||
*/
|
*/
|
||||||
private static void moveToTmpDir(DiffInfo[] diffs,
|
private void moveToTmpDir(DiffInfo[] diffs,
|
||||||
DistributedFileSystem targetFs, Path tmpDir) throws IOException {
|
DistributedFileSystem targetFs, Path tmpDir) throws IOException {
|
||||||
// sort the diffs based on their source paths to make sure the files and
|
// sort the diffs based on their source paths to make sure the files and
|
||||||
// subdirs are moved before moving their parents/ancestors.
|
// subdirs are moved before moving their parents/ancestors.
|
||||||
@ -196,7 +268,7 @@ private static void moveToTmpDir(DiffInfo[] diffs,
|
|||||||
* Finish the rename operations: move all the intermediate files/directories
|
* Finish the rename operations: move all the intermediate files/directories
|
||||||
* from the tmp dir to the final targets.
|
* from the tmp dir to the final targets.
|
||||||
*/
|
*/
|
||||||
private static void moveToTarget(DiffInfo[] diffs,
|
private void moveToTarget(DiffInfo[] diffs,
|
||||||
DistributedFileSystem targetFs) throws IOException {
|
DistributedFileSystem targetFs) throws IOException {
|
||||||
// sort the diffs based on their target paths to make sure the parent
|
// sort the diffs based on their target paths to make sure the parent
|
||||||
// directories are created first.
|
// directories are created first.
|
||||||
@ -210,4 +282,166 @@ private static void moveToTarget(DiffInfo[] diffs,
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Get rename and delete diffs and add the targetDir as the prefix of their
|
||||||
|
* source and target paths.
|
||||||
|
*/
|
||||||
|
private DiffInfo[] getRenameAndDeleteDiffs(Path targetDir) {
|
||||||
|
List<DiffInfo> renameAndDeleteDiff = new ArrayList<>();
|
||||||
|
for (DiffInfo diff : diffMap.get(SnapshotDiffReport.DiffType.DELETE)) {
|
||||||
|
Path source = new Path(targetDir, diff.source);
|
||||||
|
renameAndDeleteDiff.add(new DiffInfo(source, diff.target,
|
||||||
|
diff.getType()));
|
||||||
|
}
|
||||||
|
|
||||||
|
for (DiffInfo diff : diffMap.get(SnapshotDiffReport.DiffType.RENAME)) {
|
||||||
|
Path source = new Path(targetDir, diff.source);
|
||||||
|
Path target = new Path(targetDir, diff.target);
|
||||||
|
renameAndDeleteDiff.add(new DiffInfo(source, target, diff.getType()));
|
||||||
|
}
|
||||||
|
|
||||||
|
return renameAndDeleteDiff.toArray(
|
||||||
|
new DiffInfo[renameAndDeleteDiff.size()]);
|
||||||
|
}
|
||||||
|
|
||||||
|
private DiffInfo[] getCreateAndModifyDiffs() {
|
||||||
|
List<DiffInfo> createDiff =
|
||||||
|
diffMap.get(SnapshotDiffReport.DiffType.CREATE);
|
||||||
|
List<DiffInfo> modifyDiff =
|
||||||
|
diffMap.get(SnapshotDiffReport.DiffType.MODIFY);
|
||||||
|
List<DiffInfo> diffs =
|
||||||
|
new ArrayList<>(createDiff.size() + modifyDiff.size());
|
||||||
|
diffs.addAll(createDiff);
|
||||||
|
diffs.addAll(modifyDiff);
|
||||||
|
return diffs.toArray(new DiffInfo[diffs.size()]);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Probe for a path being a parent of another.
|
||||||
|
* @return true if the parent's path matches the start of the child's
|
||||||
|
*/
|
||||||
|
private boolean isParentOf(Path parent, Path child) {
|
||||||
|
String parentPath = parent.toString();
|
||||||
|
String childPath = child.toString();
|
||||||
|
if (!parentPath.endsWith(Path.SEPARATOR)) {
|
||||||
|
parentPath += Path.SEPARATOR;
|
||||||
|
}
|
||||||
|
|
||||||
|
return childPath.length() > parentPath.length() &&
|
||||||
|
childPath.startsWith(parentPath);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Find the possible rename item which equals to the parent or self of
|
||||||
|
* a created/modified file/directory.
|
||||||
|
* @param diff a modify/create diff item
|
||||||
|
* @param renameDiffArray all rename diffs
|
||||||
|
* @return possible rename item
|
||||||
|
*/
|
||||||
|
private DiffInfo getRenameItem(DiffInfo diff, DiffInfo[] renameDiffArray) {
|
||||||
|
for (DiffInfo renameItem : renameDiffArray) {
|
||||||
|
if (diff.source.equals(renameItem.source)) {
|
||||||
|
// The same path string may appear in:
|
||||||
|
// 1. both renamed and modified snapshot diff entries.
|
||||||
|
// 2. both renamed and created snapshot diff entries.
|
||||||
|
// Case 1 is the about same file/directory, whereas case 2
|
||||||
|
// is about two different files/directories.
|
||||||
|
// We are finding case 1 here, thus we check against DiffType.MODIFY.
|
||||||
|
if (diff.getType() == SnapshotDiffReport.DiffType.MODIFY) {
|
||||||
|
return renameItem;
|
||||||
|
}
|
||||||
|
} else if (isParentOf(renameItem.source, diff.source)) {
|
||||||
|
// If rename entry is the parent of diff entry, then both MODIFY and
|
||||||
|
// CREATE diff entries should be handled.
|
||||||
|
return renameItem;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* For a given source path, get its target path based on the rename item.
|
||||||
|
* @return target path
|
||||||
|
*/
|
||||||
|
private Path getTargetPath(Path sourcePath, DiffInfo renameItem) {
|
||||||
|
if (sourcePath.equals(renameItem.source)) {
|
||||||
|
return renameItem.target;
|
||||||
|
}
|
||||||
|
StringBuffer sb = new StringBuffer(sourcePath.toString());
|
||||||
|
String remain = sb.substring(renameItem.source.toString().length() + 1);
|
||||||
|
return new Path(renameItem.target, remain);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Prepare the diff list.
|
||||||
|
* This diff list only includes created or modified files/directories, since
|
||||||
|
* delete and rename items are synchronized already.
|
||||||
|
*
|
||||||
|
* If the parent or self of a source path is renamed, we need to change its
|
||||||
|
* target path according the correspondent rename item.
|
||||||
|
* @return a diff list
|
||||||
|
*/
|
||||||
|
public ArrayList<DiffInfo> prepareDiffList() {
|
||||||
|
DiffInfo[] modifyAndCreateDiffs = getCreateAndModifyDiffs();
|
||||||
|
|
||||||
|
List<DiffInfo> renameDiffsList =
|
||||||
|
diffMap.get(SnapshotDiffReport.DiffType.RENAME);
|
||||||
|
DiffInfo[] renameDiffArray =
|
||||||
|
renameDiffsList.toArray(new DiffInfo[renameDiffsList.size()]);
|
||||||
|
Arrays.sort(renameDiffArray, DiffInfo.sourceComparator);
|
||||||
|
|
||||||
|
ArrayList<DiffInfo> finalListWithTarget = new ArrayList<>();
|
||||||
|
for (DiffInfo diff : modifyAndCreateDiffs) {
|
||||||
|
DiffInfo renameItem = getRenameItem(diff, renameDiffArray);
|
||||||
|
if (renameItem == null) {
|
||||||
|
diff.target = diff.source;
|
||||||
|
} else {
|
||||||
|
diff.target = getTargetPath(diff.source, renameItem);
|
||||||
|
}
|
||||||
|
finalListWithTarget.add(diff);
|
||||||
|
}
|
||||||
|
return finalListWithTarget;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* This method returns a list of items to be excluded when recursively
|
||||||
|
* traversing newDir to build the copy list.
|
||||||
|
*
|
||||||
|
* Specifically, given a newly created directory newDir (a CREATE entry in
|
||||||
|
* the snapshot diff), if a previously copied file/directory itemX is moved
|
||||||
|
* (a RENAME entry in the snapshot diff) into newDir, itemX should be
|
||||||
|
* excluded when recursively traversing newDir in caller method so that it
|
||||||
|
* will not to be copied again.
|
||||||
|
* If the same itemX also has a MODIFY entry in the snapshot diff report,
|
||||||
|
* meaning it was modified after it was previously copied, it will still
|
||||||
|
* be added to the copy list in caller method.
|
||||||
|
* @return the exclude list
|
||||||
|
*/
|
||||||
|
public HashSet<String> getTraverseExcludeList(Path newDir, Path prefix) {
|
||||||
|
if (renameDiffs == null) {
|
||||||
|
List<DiffInfo> renameList =
|
||||||
|
diffMap.get(SnapshotDiffReport.DiffType.RENAME);
|
||||||
|
renameDiffs = renameList.toArray(new DiffInfo[renameList.size()]);
|
||||||
|
Arrays.sort(renameDiffs, DiffInfo.targetComparator);
|
||||||
|
}
|
||||||
|
|
||||||
|
if (renameDiffs.length <= 0) {
|
||||||
|
return null;
|
||||||
|
}
|
||||||
|
|
||||||
|
boolean foundChild = false;
|
||||||
|
HashSet<String> excludeList = new HashSet<>();
|
||||||
|
for (DiffInfo diff : renameDiffs) {
|
||||||
|
if (isParentOf(newDir, diff.target)) {
|
||||||
|
foundChild = true;
|
||||||
|
excludeList.add(new Path(prefix, diff.target).toUri().getPath());
|
||||||
|
} else if (foundChild) {
|
||||||
|
// The renameDiffs was sorted, the matching section should be
|
||||||
|
// contiguous.
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
return excludeList;
|
||||||
|
}
|
||||||
}
|
}
|
||||||
|
@ -24,6 +24,7 @@
|
|||||||
import org.apache.hadoop.fs.FileSystem;
|
import org.apache.hadoop.fs.FileSystem;
|
||||||
import org.apache.hadoop.fs.FileStatus;
|
import org.apache.hadoop.fs.FileStatus;
|
||||||
import org.apache.hadoop.conf.Configuration;
|
import org.apache.hadoop.conf.Configuration;
|
||||||
|
import org.apache.hadoop.hdfs.protocol.SnapshotDiffReport;
|
||||||
import org.apache.hadoop.io.SequenceFile;
|
import org.apache.hadoop.io.SequenceFile;
|
||||||
import org.apache.hadoop.io.IOUtils;
|
import org.apache.hadoop.io.IOUtils;
|
||||||
import org.apache.hadoop.io.Text;
|
import org.apache.hadoop.io.Text;
|
||||||
@ -40,6 +41,7 @@
|
|||||||
|
|
||||||
import java.io.*;
|
import java.io.*;
|
||||||
import java.util.ArrayList;
|
import java.util.ArrayList;
|
||||||
|
import java.util.HashSet;
|
||||||
|
|
||||||
import static org.apache.hadoop.tools.DistCpConstants
|
import static org.apache.hadoop.tools.DistCpConstants
|
||||||
.HDFS_RESERVED_RAW_DIRECTORY_NAME;
|
.HDFS_RESERVED_RAW_DIRECTORY_NAME;
|
||||||
@ -59,6 +61,7 @@ public class SimpleCopyListing extends CopyListing {
|
|||||||
private int numListstatusThreads = 1;
|
private int numListstatusThreads = 1;
|
||||||
private final int maxRetries = 3;
|
private final int maxRetries = 3;
|
||||||
private CopyFilter copyFilter;
|
private CopyFilter copyFilter;
|
||||||
|
private DistCpSync distCpSync;
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Protected constructor, to initialize configuration.
|
* Protected constructor, to initialize configuration.
|
||||||
@ -77,12 +80,20 @@ protected SimpleCopyListing(Configuration configuration, Credentials credentials
|
|||||||
}
|
}
|
||||||
|
|
||||||
@VisibleForTesting
|
@VisibleForTesting
|
||||||
protected SimpleCopyListing(Configuration configuration, Credentials credentials,
|
protected SimpleCopyListing(Configuration configuration,
|
||||||
|
Credentials credentials,
|
||||||
int numListstatusThreads) {
|
int numListstatusThreads) {
|
||||||
super(configuration, credentials);
|
super(configuration, credentials);
|
||||||
this.numListstatusThreads = numListstatusThreads;
|
this.numListstatusThreads = numListstatusThreads;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
protected SimpleCopyListing(Configuration configuration,
|
||||||
|
Credentials credentials,
|
||||||
|
DistCpSync distCpSync) {
|
||||||
|
this(configuration, credentials);
|
||||||
|
this.distCpSync = distCpSync;
|
||||||
|
}
|
||||||
|
|
||||||
@Override
|
@Override
|
||||||
protected void validatePaths(DistCpOptions options)
|
protected void validatePaths(DistCpOptions options)
|
||||||
throws IOException, InvalidInputException {
|
throws IOException, InvalidInputException {
|
||||||
@ -157,8 +168,106 @@ protected void validatePaths(DistCpOptions options)
|
|||||||
/** {@inheritDoc} */
|
/** {@inheritDoc} */
|
||||||
@Override
|
@Override
|
||||||
public void doBuildListing(Path pathToListingFile, DistCpOptions options) throws IOException {
|
public void doBuildListing(Path pathToListingFile, DistCpOptions options) throws IOException {
|
||||||
|
if(options.shouldUseDiff()) {
|
||||||
|
doBuildListingWithSnapshotDiff(getWriter(pathToListingFile), options);
|
||||||
|
}else {
|
||||||
doBuildListing(getWriter(pathToListingFile), options);
|
doBuildListing(getWriter(pathToListingFile), options);
|
||||||
}
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Get a path with its scheme and authority.
|
||||||
|
*/
|
||||||
|
private Path getPathWithSchemeAndAuthority(Path path) throws IOException {
|
||||||
|
FileSystem fs= path.getFileSystem(getConf());
|
||||||
|
String scheme = path.toUri().getScheme();
|
||||||
|
if (scheme == null) {
|
||||||
|
scheme = fs.getUri().getScheme();
|
||||||
|
}
|
||||||
|
|
||||||
|
String authority = path.toUri().getAuthority();
|
||||||
|
if (authority == null) {
|
||||||
|
authority = fs.getUri().getAuthority();
|
||||||
|
}
|
||||||
|
|
||||||
|
return new Path(scheme, authority, path.toUri().getPath());
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Write a single file/directory to the sequence file.
|
||||||
|
* @throws IOException
|
||||||
|
*/
|
||||||
|
private void addToFileListing(SequenceFile.Writer fileListWriter,
|
||||||
|
Path sourceRoot, Path path, DistCpOptions options) throws IOException {
|
||||||
|
sourceRoot = getPathWithSchemeAndAuthority(sourceRoot);
|
||||||
|
path = getPathWithSchemeAndAuthority(path);
|
||||||
|
path = makeQualified(path);
|
||||||
|
|
||||||
|
FileSystem sourceFS = sourceRoot.getFileSystem(getConf());
|
||||||
|
FileStatus fileStatus = sourceFS.getFileStatus(path);
|
||||||
|
final boolean preserveAcls = options.shouldPreserve(FileAttribute.ACL);
|
||||||
|
final boolean preserveXAttrs = options.shouldPreserve(FileAttribute.XATTR);
|
||||||
|
final boolean preserveRawXAttrs = options.shouldPreserveRawXattrs();
|
||||||
|
CopyListingFileStatus fileCopyListingStatus =
|
||||||
|
DistCpUtils.toCopyListingFileStatus(sourceFS, fileStatus,
|
||||||
|
preserveAcls, preserveXAttrs, preserveRawXAttrs);
|
||||||
|
|
||||||
|
writeToFileListingRoot(fileListWriter, fileCopyListingStatus,
|
||||||
|
sourceRoot, options);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Build a copy list based on the snapshot diff report.
|
||||||
|
*
|
||||||
|
* Any file/directory changed or created will be in the list. Deleted
|
||||||
|
* files/directories will not be in the list, since they are handled by
|
||||||
|
* {@link org.apache.hadoop.tools.DistCpSync#sync}. An item can be
|
||||||
|
* created/modified and renamed, in which case, the target path is put
|
||||||
|
* into the list.
|
||||||
|
* @throws IOException
|
||||||
|
*/
|
||||||
|
@VisibleForTesting
|
||||||
|
public void doBuildListingWithSnapshotDiff(SequenceFile.Writer fileListWriter,
|
||||||
|
DistCpOptions options) throws IOException {
|
||||||
|
ArrayList<DiffInfo> diffList = distCpSync.prepareDiffList();
|
||||||
|
Path sourceRoot = options.getSourcePaths().get(0);
|
||||||
|
FileSystem sourceFS = sourceRoot.getFileSystem(getConf());
|
||||||
|
|
||||||
|
try {
|
||||||
|
for (DiffInfo diff : diffList) {
|
||||||
|
// add snapshot paths prefix
|
||||||
|
diff.target = new Path(options.getSourcePaths().get(0), diff.target);
|
||||||
|
if (diff.getType() == SnapshotDiffReport.DiffType.MODIFY) {
|
||||||
|
addToFileListing(fileListWriter, sourceRoot, diff.target, options);
|
||||||
|
} else if (diff.getType() == SnapshotDiffReport.DiffType.CREATE) {
|
||||||
|
addToFileListing(fileListWriter, sourceRoot, diff.target, options);
|
||||||
|
|
||||||
|
FileStatus sourceStatus = sourceFS.getFileStatus(diff.target);
|
||||||
|
if (sourceStatus.isDirectory()) {
|
||||||
|
if (LOG.isDebugEnabled()) {
|
||||||
|
LOG.debug("Adding source dir for traverse: " +
|
||||||
|
sourceStatus.getPath());
|
||||||
|
}
|
||||||
|
|
||||||
|
HashSet<String> excludeList =
|
||||||
|
distCpSync.getTraverseExcludeList(diff.source,
|
||||||
|
options.getSourcePaths().get(0));
|
||||||
|
|
||||||
|
ArrayList<FileStatus> sourceDirs = new ArrayList<>();
|
||||||
|
sourceDirs.add(sourceStatus);
|
||||||
|
|
||||||
|
traverseDirectory(fileListWriter, sourceFS, sourceDirs,
|
||||||
|
sourceRoot, options, excludeList);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
}
|
||||||
|
fileListWriter.close();
|
||||||
|
fileListWriter = null;
|
||||||
|
} finally {
|
||||||
|
IOUtils.cleanup(LOG, fileListWriter);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Collect the list of
|
* Collect the list of
|
||||||
* {@literal <sourceRelativePath, sourceFileStatus>}
|
* {@literal <sourceRelativePath, sourceFileStatus>}
|
||||||
@ -226,7 +335,7 @@ public void doBuildListing(SequenceFile.Writer fileListWriter,
|
|||||||
}
|
}
|
||||||
}
|
}
|
||||||
traverseDirectory(fileListWriter, sourceFS, sourceDirs,
|
traverseDirectory(fileListWriter, sourceFS, sourceDirs,
|
||||||
sourcePathRoot, options);
|
sourcePathRoot, options, null);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
fileListWriter.close();
|
fileListWriter.close();
|
||||||
@ -312,9 +421,33 @@ private SequenceFile.Writer getWriter(Path pathToListFile) throws IOException {
|
|||||||
private static class FileStatusProcessor
|
private static class FileStatusProcessor
|
||||||
implements WorkRequestProcessor<FileStatus, FileStatus[]> {
|
implements WorkRequestProcessor<FileStatus, FileStatus[]> {
|
||||||
private FileSystem fileSystem;
|
private FileSystem fileSystem;
|
||||||
|
private HashSet<String> excludeList;
|
||||||
|
|
||||||
public FileStatusProcessor(FileSystem fileSystem) {
|
public FileStatusProcessor(FileSystem fileSystem,
|
||||||
|
HashSet<String> excludeList) {
|
||||||
this.fileSystem = fileSystem;
|
this.fileSystem = fileSystem;
|
||||||
|
this.excludeList = excludeList;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Get FileStatuses for a given path.
|
||||||
|
* Exclude the some renamed FileStatuses since they are already handled by
|
||||||
|
* {@link org.apache.hadoop.tools.DistCpSync#sync}.
|
||||||
|
* @return an array of file status
|
||||||
|
*/
|
||||||
|
private FileStatus[] getFileStatus(Path path) throws IOException {
|
||||||
|
FileStatus[] fileStatuses = fileSystem.listStatus(path);
|
||||||
|
if (excludeList != null && excludeList.size() > 0) {
|
||||||
|
ArrayList<FileStatus> fileStatusList = new ArrayList<>();
|
||||||
|
for(FileStatus status : fileStatuses) {
|
||||||
|
if (!excludeList.contains(status.getPath().toUri().getPath())) {
|
||||||
|
fileStatusList.add(status);
|
||||||
|
}
|
||||||
|
}
|
||||||
|
fileStatuses = fileStatusList.toArray(
|
||||||
|
new FileStatus[fileStatusList.size()]);
|
||||||
|
}
|
||||||
|
return fileStatuses;
|
||||||
}
|
}
|
||||||
|
|
||||||
/*
|
/*
|
||||||
@ -344,8 +477,8 @@ public WorkReport<FileStatus[]> processItem(
|
|||||||
LOG.debug("Interrupted while sleeping in exponential backoff.");
|
LOG.debug("Interrupted while sleeping in exponential backoff.");
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
result = new WorkReport<FileStatus[]>(
|
result = new WorkReport<FileStatus[]>(getFileStatus(parent.getPath()),
|
||||||
fileSystem.listStatus(parent.getPath()), retry, true);
|
retry, true);
|
||||||
} catch (FileNotFoundException fnf) {
|
} catch (FileNotFoundException fnf) {
|
||||||
LOG.error("FileNotFoundException exception in listStatus: " +
|
LOG.error("FileNotFoundException exception in listStatus: " +
|
||||||
fnf.getMessage());
|
fnf.getMessage());
|
||||||
@ -376,7 +509,8 @@ private void traverseDirectory(SequenceFile.Writer fileListWriter,
|
|||||||
FileSystem sourceFS,
|
FileSystem sourceFS,
|
||||||
ArrayList<FileStatus> sourceDirs,
|
ArrayList<FileStatus> sourceDirs,
|
||||||
Path sourcePathRoot,
|
Path sourcePathRoot,
|
||||||
DistCpOptions options)
|
DistCpOptions options,
|
||||||
|
HashSet<String> excludeList)
|
||||||
throws IOException {
|
throws IOException {
|
||||||
final boolean preserveAcls = options.shouldPreserve(FileAttribute.ACL);
|
final boolean preserveAcls = options.shouldPreserve(FileAttribute.ACL);
|
||||||
final boolean preserveXAttrs = options.shouldPreserve(FileAttribute.XATTR);
|
final boolean preserveXAttrs = options.shouldPreserve(FileAttribute.XATTR);
|
||||||
@ -389,7 +523,8 @@ private void traverseDirectory(SequenceFile.Writer fileListWriter,
|
|||||||
new ProducerConsumer<FileStatus, FileStatus[]>(numListstatusThreads);
|
new ProducerConsumer<FileStatus, FileStatus[]>(numListstatusThreads);
|
||||||
for (int i = 0; i < numListstatusThreads; i++) {
|
for (int i = 0; i < numListstatusThreads; i++) {
|
||||||
workers.addWorker(
|
workers.addWorker(
|
||||||
new FileStatusProcessor(sourcePathRoot.getFileSystem(getConf())));
|
new FileStatusProcessor(sourcePathRoot.getFileSystem(getConf()),
|
||||||
|
excludeList));
|
||||||
}
|
}
|
||||||
|
|
||||||
for (FileStatus status : sourceDirs) {
|
for (FileStatus status : sourceDirs) {
|
||||||
|
@ -62,7 +62,6 @@ public void setUp() throws Exception {
|
|||||||
|
|
||||||
options = new DistCpOptions(Arrays.asList(source), target);
|
options = new DistCpOptions(Arrays.asList(source), target);
|
||||||
options.setSyncFolder(true);
|
options.setSyncFolder(true);
|
||||||
options.setDeleteMissing(true);
|
|
||||||
options.setUseDiff(true, "s1", "s2");
|
options.setUseDiff(true, "s1", "s2");
|
||||||
options.appendToConf(conf);
|
options.appendToConf(conf);
|
||||||
|
|
||||||
@ -87,7 +86,7 @@ public void tearDown() throws Exception {
|
|||||||
@Test
|
@Test
|
||||||
public void testFallback() throws Exception {
|
public void testFallback() throws Exception {
|
||||||
// the source/target dir are not snapshottable dir
|
// the source/target dir are not snapshottable dir
|
||||||
Assert.assertFalse(DistCpSync.sync(options, conf));
|
Assert.assertFalse(sync());
|
||||||
// make sure the source path has been updated to the snapshot path
|
// make sure the source path has been updated to the snapshot path
|
||||||
final Path spath = new Path(source,
|
final Path spath = new Path(source,
|
||||||
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s2");
|
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s2");
|
||||||
@ -98,7 +97,7 @@ public void testFallback() throws Exception {
|
|||||||
// the source/target does not have the given snapshots
|
// the source/target does not have the given snapshots
|
||||||
dfs.allowSnapshot(source);
|
dfs.allowSnapshot(source);
|
||||||
dfs.allowSnapshot(target);
|
dfs.allowSnapshot(target);
|
||||||
Assert.assertFalse(DistCpSync.sync(options, conf));
|
Assert.assertFalse(sync());
|
||||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||||
|
|
||||||
// reset source path in options
|
// reset source path in options
|
||||||
@ -106,21 +105,38 @@ public void testFallback() throws Exception {
|
|||||||
dfs.createSnapshot(source, "s1");
|
dfs.createSnapshot(source, "s1");
|
||||||
dfs.createSnapshot(source, "s2");
|
dfs.createSnapshot(source, "s2");
|
||||||
dfs.createSnapshot(target, "s1");
|
dfs.createSnapshot(target, "s1");
|
||||||
Assert.assertTrue(DistCpSync.sync(options, conf));
|
Assert.assertTrue(sync());
|
||||||
|
|
||||||
// reset source paths in options
|
// reset source paths in options
|
||||||
options.setSourcePaths(Arrays.asList(source));
|
options.setSourcePaths(Arrays.asList(source));
|
||||||
// changes have been made in target
|
// changes have been made in target
|
||||||
final Path subTarget = new Path(target, "sub");
|
final Path subTarget = new Path(target, "sub");
|
||||||
dfs.mkdirs(subTarget);
|
dfs.mkdirs(subTarget);
|
||||||
Assert.assertFalse(DistCpSync.sync(options, conf));
|
Assert.assertFalse(sync());
|
||||||
// make sure the source path has been updated to the snapshot path
|
// make sure the source path has been updated to the snapshot path
|
||||||
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||||
|
|
||||||
// reset source paths in options
|
// reset source paths in options
|
||||||
options.setSourcePaths(Arrays.asList(source));
|
options.setSourcePaths(Arrays.asList(source));
|
||||||
dfs.delete(subTarget, true);
|
dfs.delete(subTarget, true);
|
||||||
Assert.assertTrue(DistCpSync.sync(options, conf));
|
Assert.assertTrue(sync());
|
||||||
|
}
|
||||||
|
|
||||||
|
private void enableAndCreateFirstSnapshot() throws Exception {
|
||||||
|
dfs.allowSnapshot(source);
|
||||||
|
dfs.allowSnapshot(target);
|
||||||
|
dfs.createSnapshot(source, "s1");
|
||||||
|
dfs.createSnapshot(target, "s1");
|
||||||
|
}
|
||||||
|
|
||||||
|
private void syncAndVerify() throws Exception {
|
||||||
|
Assert.assertTrue(sync());
|
||||||
|
verifyCopy(dfs.getFileStatus(source), dfs.getFileStatus(target), false);
|
||||||
|
}
|
||||||
|
|
||||||
|
private boolean sync() throws Exception {
|
||||||
|
DistCpSync distCpSync = new DistCpSync(options, conf);
|
||||||
|
return distCpSync.sync();
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
@ -164,23 +180,30 @@ private void initData(Path dir) throws Exception {
|
|||||||
* foo/ f4
|
* foo/ f4
|
||||||
* f1(new)
|
* f1(new)
|
||||||
*/
|
*/
|
||||||
private void changeData(Path dir) throws Exception {
|
private int changeData(Path dir) throws Exception {
|
||||||
final Path foo = new Path(dir, "foo");
|
final Path foo = new Path(dir, "foo");
|
||||||
final Path bar = new Path(dir, "bar");
|
final Path bar = new Path(dir, "bar");
|
||||||
final Path d1 = new Path(foo, "d1");
|
final Path d1 = new Path(foo, "d1");
|
||||||
final Path f2 = new Path(bar, "f2");
|
final Path f2 = new Path(bar, "f2");
|
||||||
|
|
||||||
final Path bar_d1 = new Path(bar, "d1");
|
final Path bar_d1 = new Path(bar, "d1");
|
||||||
|
int numCreatedModified = 0;
|
||||||
dfs.rename(d1, bar_d1);
|
dfs.rename(d1, bar_d1);
|
||||||
|
numCreatedModified += 1; // modify ./foo
|
||||||
|
numCreatedModified += 1; // modify ./bar
|
||||||
final Path f3 = new Path(bar_d1, "f3");
|
final Path f3 = new Path(bar_d1, "f3");
|
||||||
dfs.delete(f3, true);
|
dfs.delete(f3, true);
|
||||||
final Path newfoo = new Path(bar_d1, "foo");
|
final Path newfoo = new Path(bar_d1, "foo");
|
||||||
dfs.rename(foo, newfoo);
|
dfs.rename(foo, newfoo);
|
||||||
|
numCreatedModified += 1; // modify ./foo/d1
|
||||||
final Path f1 = new Path(newfoo, "f1");
|
final Path f1 = new Path(newfoo, "f1");
|
||||||
dfs.delete(f1, true);
|
dfs.delete(f1, true);
|
||||||
DFSTestUtil.createFile(dfs, f1, 2 * BLOCK_SIZE, DATA_NUM, 0);
|
DFSTestUtil.createFile(dfs, f1, 2 * BLOCK_SIZE, DATA_NUM, 0);
|
||||||
|
numCreatedModified += 1; // create ./foo/f1
|
||||||
DFSTestUtil.appendFile(dfs, f2, (int) BLOCK_SIZE);
|
DFSTestUtil.appendFile(dfs, f2, (int) BLOCK_SIZE);
|
||||||
|
numCreatedModified += 1; // modify ./bar/f2
|
||||||
dfs.rename(bar, new Path(dir, "foo"));
|
dfs.rename(bar, new Path(dir, "foo"));
|
||||||
|
return numCreatedModified;
|
||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
@ -190,13 +213,10 @@ private void changeData(Path dir) throws Exception {
|
|||||||
public void testSync() throws Exception {
|
public void testSync() throws Exception {
|
||||||
initData(source);
|
initData(source);
|
||||||
initData(target);
|
initData(target);
|
||||||
dfs.allowSnapshot(source);
|
enableAndCreateFirstSnapshot();
|
||||||
dfs.allowSnapshot(target);
|
|
||||||
dfs.createSnapshot(source, "s1");
|
|
||||||
dfs.createSnapshot(target, "s1");
|
|
||||||
|
|
||||||
// make changes under source
|
// make changes under source
|
||||||
changeData(source);
|
int numCreatedModified = changeData(source);
|
||||||
dfs.createSnapshot(source, "s2");
|
dfs.createSnapshot(source, "s2");
|
||||||
|
|
||||||
// before sync, make some further changes on source. this should not affect
|
// before sync, make some further changes on source. this should not affect
|
||||||
@ -206,8 +226,13 @@ public void testSync() throws Exception {
|
|||||||
final Path newdir = new Path(source, "foo/d1/foo/newdir");
|
final Path newdir = new Path(source, "foo/d1/foo/newdir");
|
||||||
dfs.mkdirs(newdir);
|
dfs.mkdirs(newdir);
|
||||||
|
|
||||||
|
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
||||||
|
System.out.println(report);
|
||||||
|
|
||||||
|
DistCpSync distCpSync = new DistCpSync(options, conf);
|
||||||
|
|
||||||
// do the sync
|
// do the sync
|
||||||
Assert.assertTrue(DistCpSync.sync(options, conf));
|
Assert.assertTrue(distCpSync.sync());
|
||||||
|
|
||||||
// make sure the source path has been updated to the snapshot path
|
// make sure the source path has been updated to the snapshot path
|
||||||
final Path spath = new Path(source,
|
final Path spath = new Path(source,
|
||||||
@ -216,7 +241,7 @@ public void testSync() throws Exception {
|
|||||||
|
|
||||||
// build copy listing
|
// build copy listing
|
||||||
final Path listingPath = new Path("/tmp/META/fileList.seq");
|
final Path listingPath = new Path("/tmp/META/fileList.seq");
|
||||||
CopyListing listing = new GlobbedCopyListing(conf, new Credentials());
|
CopyListing listing = new SimpleCopyListing(conf, new Credentials(), distCpSync);
|
||||||
listing.buildListing(listingPath, options);
|
listing.buildListing(listingPath, options);
|
||||||
|
|
||||||
Map<Text, CopyListingFileStatus> copyListing = getListing(listingPath);
|
Map<Text, CopyListingFileStatus> copyListing = getListing(listingPath);
|
||||||
@ -232,6 +257,9 @@ public void testSync() throws Exception {
|
|||||||
copyMapper.map(entry.getKey(), entry.getValue(), context);
|
copyMapper.map(entry.getKey(), entry.getValue(), context);
|
||||||
}
|
}
|
||||||
|
|
||||||
|
// verify that we only list modified and created files/directories
|
||||||
|
Assert.assertEquals(numCreatedModified, copyListing.size());
|
||||||
|
|
||||||
// verify that we only copied new appended data of f2 and the new file f1
|
// verify that we only copied new appended data of f2 and the new file f1
|
||||||
Assert.assertEquals(BLOCK_SIZE * 3, stubContext.getReporter()
|
Assert.assertEquals(BLOCK_SIZE * 3, stubContext.getReporter()
|
||||||
.getCounter(CopyMapper.Counter.BYTESCOPIED).getValue());
|
.getCounter(CopyMapper.Counter.BYTESCOPIED).getValue());
|
||||||
@ -285,16 +313,13 @@ public void testSyncWithCurrent() throws Exception {
|
|||||||
options.setUseDiff(true, "s1", ".");
|
options.setUseDiff(true, "s1", ".");
|
||||||
initData(source);
|
initData(source);
|
||||||
initData(target);
|
initData(target);
|
||||||
dfs.allowSnapshot(source);
|
enableAndCreateFirstSnapshot();
|
||||||
dfs.allowSnapshot(target);
|
|
||||||
dfs.createSnapshot(source, "s1");
|
|
||||||
dfs.createSnapshot(target, "s1");
|
|
||||||
|
|
||||||
// make changes under source
|
// make changes under source
|
||||||
changeData(source);
|
changeData(source);
|
||||||
|
|
||||||
// do the sync
|
// do the sync
|
||||||
Assert.assertTrue(DistCpSync.sync(options, conf));
|
sync();
|
||||||
// make sure the source path is still unchanged
|
// make sure the source path is still unchanged
|
||||||
Assert.assertEquals(source, options.getSourcePaths().get(0));
|
Assert.assertEquals(source, options.getSourcePaths().get(0));
|
||||||
}
|
}
|
||||||
@ -328,10 +353,7 @@ private void changeData2(Path dir) throws Exception {
|
|||||||
public void testSync2() throws Exception {
|
public void testSync2() throws Exception {
|
||||||
initData2(source);
|
initData2(source);
|
||||||
initData2(target);
|
initData2(target);
|
||||||
dfs.allowSnapshot(source);
|
enableAndCreateFirstSnapshot();
|
||||||
dfs.allowSnapshot(target);
|
|
||||||
dfs.createSnapshot(source, "s1");
|
|
||||||
dfs.createSnapshot(target, "s1");
|
|
||||||
|
|
||||||
// make changes under source
|
// make changes under source
|
||||||
changeData2(source);
|
changeData2(source);
|
||||||
@ -340,9 +362,7 @@ public void testSync2() throws Exception {
|
|||||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
||||||
System.out.println(report);
|
System.out.println(report);
|
||||||
|
|
||||||
// do the sync
|
syncAndVerify();
|
||||||
Assert.assertTrue(DistCpSync.sync(options, conf));
|
|
||||||
verifyCopy(dfs.getFileStatus(source), dfs.getFileStatus(target), false);
|
|
||||||
}
|
}
|
||||||
|
|
||||||
private void initData3(Path dir) throws Exception {
|
private void initData3(Path dir) throws Exception {
|
||||||
@ -375,16 +395,13 @@ private void changeData3(Path dir) throws Exception {
|
|||||||
}
|
}
|
||||||
|
|
||||||
/**
|
/**
|
||||||
* Test a case where there are multiple source files with the same name
|
* Test a case where there are multiple source files with the same name.
|
||||||
*/
|
*/
|
||||||
@Test
|
@Test
|
||||||
public void testSync3() throws Exception {
|
public void testSync3() throws Exception {
|
||||||
initData3(source);
|
initData3(source);
|
||||||
initData3(target);
|
initData3(target);
|
||||||
dfs.allowSnapshot(source);
|
enableAndCreateFirstSnapshot();
|
||||||
dfs.allowSnapshot(target);
|
|
||||||
dfs.createSnapshot(source, "s1");
|
|
||||||
dfs.createSnapshot(target, "s1");
|
|
||||||
|
|
||||||
// make changes under source
|
// make changes under source
|
||||||
changeData3(source);
|
changeData3(source);
|
||||||
@ -393,8 +410,268 @@ public void testSync3() throws Exception {
|
|||||||
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
||||||
System.out.println(report);
|
System.out.println(report);
|
||||||
|
|
||||||
|
syncAndVerify();
|
||||||
|
}
|
||||||
|
|
||||||
|
private void initData4(Path dir) throws Exception {
|
||||||
|
final Path d1 = new Path(dir, "d1");
|
||||||
|
final Path d2 = new Path(d1, "d2");
|
||||||
|
final Path f1 = new Path(d2, "f1");
|
||||||
|
|
||||||
|
DFSTestUtil.createFile(dfs, f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
}
|
||||||
|
|
||||||
|
private void changeData4(Path dir) throws Exception {
|
||||||
|
final Path d1 = new Path(dir, "d1");
|
||||||
|
final Path d11 = new Path(dir, "d11");
|
||||||
|
final Path d2 = new Path(d1, "d2");
|
||||||
|
final Path d21 = new Path(d1, "d21");
|
||||||
|
final Path f1 = new Path(d2, "f1");
|
||||||
|
|
||||||
|
dfs.delete(f1, false);
|
||||||
|
dfs.rename(d2, d21);
|
||||||
|
dfs.rename(d1, d11);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test a case where multiple level dirs are renamed.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testSync4() throws Exception {
|
||||||
|
initData4(source);
|
||||||
|
initData4(target);
|
||||||
|
enableAndCreateFirstSnapshot();
|
||||||
|
|
||||||
|
// make changes under source
|
||||||
|
changeData4(source);
|
||||||
|
dfs.createSnapshot(source, "s2");
|
||||||
|
|
||||||
|
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
||||||
|
System.out.println(report);
|
||||||
|
|
||||||
|
syncAndVerify();
|
||||||
|
}
|
||||||
|
|
||||||
|
private void initData5(Path dir) throws Exception {
|
||||||
|
final Path d1 = new Path(dir, "d1");
|
||||||
|
final Path d2 = new Path(dir, "d2");
|
||||||
|
final Path f1 = new Path(d1, "f1");
|
||||||
|
final Path f2 = new Path(d2, "f2");
|
||||||
|
|
||||||
|
DFSTestUtil.createFile(dfs, f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
DFSTestUtil.createFile(dfs, f2, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
}
|
||||||
|
|
||||||
|
private void changeData5(Path dir) throws Exception {
|
||||||
|
final Path d1 = new Path(dir, "d1");
|
||||||
|
final Path d2 = new Path(dir, "d2");
|
||||||
|
final Path f1 = new Path(d1, "f1");
|
||||||
|
final Path tmp = new Path(dir, "tmp");
|
||||||
|
|
||||||
|
dfs.delete(f1, false);
|
||||||
|
dfs.rename(d1, tmp);
|
||||||
|
dfs.rename(d2, d1);
|
||||||
|
final Path f2 = new Path(d1, "f2");
|
||||||
|
dfs.delete(f2, false);
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test a case with different delete and rename sequences.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testSync5() throws Exception {
|
||||||
|
initData5(source);
|
||||||
|
initData5(target);
|
||||||
|
enableAndCreateFirstSnapshot();
|
||||||
|
|
||||||
|
// make changes under source
|
||||||
|
changeData5(source);
|
||||||
|
dfs.createSnapshot(source, "s2");
|
||||||
|
|
||||||
|
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
||||||
|
System.out.println(report);
|
||||||
|
|
||||||
|
syncAndVerify();
|
||||||
|
}
|
||||||
|
|
||||||
|
private void testAndVerify(int numCreatedModified)
|
||||||
|
throws Exception{
|
||||||
|
SnapshotDiffReport report = dfs.getSnapshotDiffReport(source, "s1", "s2");
|
||||||
|
System.out.println(report);
|
||||||
|
|
||||||
|
DistCpSync distCpSync = new DistCpSync(options, conf);
|
||||||
// do the sync
|
// do the sync
|
||||||
Assert.assertTrue(DistCpSync.sync(options, conf));
|
Assert.assertTrue(distCpSync.sync());
|
||||||
verifyCopy(dfs.getFileStatus(source), dfs.getFileStatus(target), false);
|
|
||||||
|
// make sure the source path has been updated to the snapshot path
|
||||||
|
final Path spath = new Path(source,
|
||||||
|
HdfsConstants.DOT_SNAPSHOT_DIR + Path.SEPARATOR + "s2");
|
||||||
|
Assert.assertEquals(spath, options.getSourcePaths().get(0));
|
||||||
|
|
||||||
|
// build copy listing
|
||||||
|
final Path listingPath = new Path("/tmp/META/fileList.seq");
|
||||||
|
CopyListing listing = new SimpleCopyListing(conf, new Credentials(), distCpSync);
|
||||||
|
listing.buildListing(listingPath, options);
|
||||||
|
|
||||||
|
Map<Text, CopyListingFileStatus> copyListing = getListing(listingPath);
|
||||||
|
CopyMapper copyMapper = new CopyMapper();
|
||||||
|
StubContext stubContext = new StubContext(conf, null, 0);
|
||||||
|
Mapper<Text, CopyListingFileStatus, Text, Text>.Context context =
|
||||||
|
stubContext.getContext();
|
||||||
|
// Enable append
|
||||||
|
context.getConfiguration().setBoolean(
|
||||||
|
DistCpOptionSwitch.APPEND.getConfigLabel(), true);
|
||||||
|
copyMapper.setup(context);
|
||||||
|
for (Map.Entry<Text, CopyListingFileStatus> entry :
|
||||||
|
copyListing.entrySet()) {
|
||||||
|
copyMapper.map(entry.getKey(), entry.getValue(), context);
|
||||||
|
}
|
||||||
|
|
||||||
|
// verify that we only list modified and created files/directories
|
||||||
|
Assert.assertEquals(numCreatedModified, copyListing.size());
|
||||||
|
|
||||||
|
// verify the source and target now has the same structure
|
||||||
|
verifyCopy(dfs.getFileStatus(spath), dfs.getFileStatus(target), false);
|
||||||
|
}
|
||||||
|
|
||||||
|
private void initData6(Path dir) throws Exception {
|
||||||
|
final Path foo = new Path(dir, "foo");
|
||||||
|
final Path bar = new Path(dir, "bar");
|
||||||
|
final Path foo_f1 = new Path(foo, "f1");
|
||||||
|
final Path bar_f1 = new Path(bar, "f1");
|
||||||
|
|
||||||
|
DFSTestUtil.createFile(dfs, foo_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
DFSTestUtil.createFile(dfs, bar_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
}
|
||||||
|
|
||||||
|
private int changeData6(Path dir) throws Exception {
|
||||||
|
final Path foo = new Path(dir, "foo");
|
||||||
|
final Path bar = new Path(dir, "bar");
|
||||||
|
final Path foo2 = new Path(dir, "foo2");
|
||||||
|
final Path foo_f1 = new Path(foo, "f1");
|
||||||
|
|
||||||
|
int numCreatedModified = 0;
|
||||||
|
dfs.rename(foo, foo2);
|
||||||
|
dfs.rename(bar, foo);
|
||||||
|
dfs.rename(foo2, bar);
|
||||||
|
DFSTestUtil.appendFile(dfs, foo_f1, (int) BLOCK_SIZE);
|
||||||
|
numCreatedModified += 1; // modify ./bar/f1
|
||||||
|
return numCreatedModified;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test a case where there is a cycle in renaming dirs.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testSync6() throws Exception {
|
||||||
|
initData6(source);
|
||||||
|
initData6(target);
|
||||||
|
enableAndCreateFirstSnapshot();
|
||||||
|
int numCreatedModified = changeData6(source);
|
||||||
|
dfs.createSnapshot(source, "s2");
|
||||||
|
|
||||||
|
testAndVerify(numCreatedModified);
|
||||||
|
}
|
||||||
|
|
||||||
|
private void initData7(Path dir) throws Exception {
|
||||||
|
final Path foo = new Path(dir, "foo");
|
||||||
|
final Path bar = new Path(dir, "bar");
|
||||||
|
final Path foo_f1 = new Path(foo, "f1");
|
||||||
|
final Path bar_f1 = new Path(bar, "f1");
|
||||||
|
|
||||||
|
DFSTestUtil.createFile(dfs, foo_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
DFSTestUtil.createFile(dfs, bar_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
}
|
||||||
|
|
||||||
|
private int changeData7(Path dir) throws Exception {
|
||||||
|
final Path foo = new Path(dir, "foo");
|
||||||
|
final Path foo2 = new Path(dir, "foo2");
|
||||||
|
final Path foo_f1 = new Path(foo, "f1");
|
||||||
|
final Path foo2_f2 = new Path(foo2, "f2");
|
||||||
|
final Path foo_d1 = new Path(foo, "d1");
|
||||||
|
final Path foo_d1_f3 = new Path(foo_d1, "f3");
|
||||||
|
|
||||||
|
int numCreatedModified = 0;
|
||||||
|
dfs.rename(foo, foo2);
|
||||||
|
DFSTestUtil.createFile(dfs, foo_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
numCreatedModified += 2; // create ./foo and ./foo/f1
|
||||||
|
DFSTestUtil.appendFile(dfs, foo_f1, (int) BLOCK_SIZE);
|
||||||
|
dfs.rename(foo_f1, foo2_f2);
|
||||||
|
numCreatedModified -= 1; // mv ./foo/f1
|
||||||
|
numCreatedModified += 2; // "M ./foo" and "+ ./foo/f2"
|
||||||
|
DFSTestUtil.createFile(dfs, foo_d1_f3, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
numCreatedModified += 2; // create ./foo/d1 and ./foo/d1/f3
|
||||||
|
return numCreatedModified;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test a case where rename a dir, then create a new dir with the same name
|
||||||
|
* and sub dir.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testSync7() throws Exception {
|
||||||
|
initData7(source);
|
||||||
|
initData7(target);
|
||||||
|
enableAndCreateFirstSnapshot();
|
||||||
|
int numCreatedModified = changeData7(source);
|
||||||
|
dfs.createSnapshot(source, "s2");
|
||||||
|
|
||||||
|
testAndVerify(numCreatedModified);
|
||||||
|
}
|
||||||
|
|
||||||
|
private void initData8(Path dir) throws Exception {
|
||||||
|
final Path foo = new Path(dir, "foo");
|
||||||
|
final Path bar = new Path(dir, "bar");
|
||||||
|
final Path d1 = new Path(dir, "d1");
|
||||||
|
final Path foo_f1 = new Path(foo, "f1");
|
||||||
|
final Path bar_f1 = new Path(bar, "f1");
|
||||||
|
final Path d1_f1 = new Path(d1, "f1");
|
||||||
|
|
||||||
|
DFSTestUtil.createFile(dfs, foo_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
DFSTestUtil.createFile(dfs, bar_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
DFSTestUtil.createFile(dfs, d1_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
}
|
||||||
|
|
||||||
|
private int changeData8(Path dir) throws Exception {
|
||||||
|
final Path foo = new Path(dir, "foo");
|
||||||
|
final Path createdDir = new Path(dir, "c");
|
||||||
|
final Path d1 = new Path(dir, "d1");
|
||||||
|
final Path d1_f1 = new Path(d1, "f1");
|
||||||
|
final Path createdDir_f1 = new Path(createdDir, "f1");
|
||||||
|
final Path foo_f3 = new Path(foo, "f3");
|
||||||
|
final Path new_foo = new Path(createdDir, "foo");
|
||||||
|
final Path foo_f4 = new Path(foo, "f4");
|
||||||
|
final Path foo_d1 = new Path(foo, "d1");
|
||||||
|
final Path bar = new Path(dir, "bar");
|
||||||
|
final Path bar1 = new Path(dir, "bar1");
|
||||||
|
|
||||||
|
int numCreatedModified = 0;
|
||||||
|
DFSTestUtil.createFile(dfs, foo_f3, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
numCreatedModified += 1; // create ./c/foo/f3
|
||||||
|
DFSTestUtil.createFile(dfs, createdDir_f1, BLOCK_SIZE, DATA_NUM, 0L);
|
||||||
|
numCreatedModified += 1; // create ./c
|
||||||
|
dfs.rename(createdDir_f1, foo_f4);
|
||||||
|
numCreatedModified += 1; // create ./c/foo/f4
|
||||||
|
dfs.rename(d1_f1, createdDir_f1); // rename ./d1/f1 -> ./c/f1
|
||||||
|
numCreatedModified += 1; // modify ./c/foo/d1
|
||||||
|
dfs.rename(d1, foo_d1);
|
||||||
|
numCreatedModified += 1; // modify ./c/foo
|
||||||
|
dfs.rename(foo, new_foo);
|
||||||
|
dfs.rename(bar, bar1);
|
||||||
|
return numCreatedModified;
|
||||||
|
}
|
||||||
|
|
||||||
|
/**
|
||||||
|
* Test a case where create a dir, then mv a existed dir into it.
|
||||||
|
*/
|
||||||
|
@Test
|
||||||
|
public void testSync8() throws Exception {
|
||||||
|
initData8(source);
|
||||||
|
initData8(target);
|
||||||
|
enableAndCreateFirstSnapshot();
|
||||||
|
int numCreatedModified = changeData8(source);
|
||||||
|
dfs.createSnapshot(source, "s2");
|
||||||
|
|
||||||
|
testAndVerify(numCreatedModified);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
@ -657,7 +657,7 @@ public void testDiffOption() {
|
|||||||
false));
|
false));
|
||||||
|
|
||||||
DistCpOptions options = OptionsParser.parse(new String[] { "-update",
|
DistCpOptions options = OptionsParser.parse(new String[] { "-update",
|
||||||
"-delete", "-diff", "s1", "s2",
|
"-diff", "s1", "s2",
|
||||||
"hdfs://localhost:8020/source/first",
|
"hdfs://localhost:8020/source/first",
|
||||||
"hdfs://localhost:8020/target/" });
|
"hdfs://localhost:8020/target/" });
|
||||||
options.appendToConf(conf);
|
options.appendToConf(conf);
|
||||||
@ -667,7 +667,7 @@ public void testDiffOption() {
|
|||||||
Assert.assertEquals("s2", options.getToSnapshot());
|
Assert.assertEquals("s2", options.getToSnapshot());
|
||||||
|
|
||||||
options = OptionsParser.parse(new String[] {
|
options = OptionsParser.parse(new String[] {
|
||||||
"-delete", "-diff", "s1", ".", "-update",
|
"-diff", "s1", ".", "-update",
|
||||||
"hdfs://localhost:8020/source/first",
|
"hdfs://localhost:8020/source/first",
|
||||||
"hdfs://localhost:8020/target/" });
|
"hdfs://localhost:8020/target/" });
|
||||||
options.appendToConf(conf);
|
options.appendToConf(conf);
|
||||||
@ -679,7 +679,7 @@ public void testDiffOption() {
|
|||||||
|
|
||||||
// -diff requires two option values
|
// -diff requires two option values
|
||||||
try {
|
try {
|
||||||
OptionsParser.parse(new String[] {"-diff", "s1", "-delete", "-update",
|
OptionsParser.parse(new String[] {"-diff", "s1", "-update",
|
||||||
"hdfs://localhost:8020/source/first",
|
"hdfs://localhost:8020/source/first",
|
||||||
"hdfs://localhost:8020/target/" });
|
"hdfs://localhost:8020/target/" });
|
||||||
fail("-diff should fail with only one snapshot name");
|
fail("-diff should fail with only one snapshot name");
|
||||||
@ -688,25 +688,25 @@ public void testDiffOption() {
|
|||||||
"Must provide both the starting and ending snapshot names", e);
|
"Must provide both the starting and ending snapshot names", e);
|
||||||
}
|
}
|
||||||
|
|
||||||
// make sure -diff is only valid when -update and -delete is specified
|
// make sure -diff is only valid when -update is specified
|
||||||
try {
|
try {
|
||||||
OptionsParser.parse(new String[] { "-diff", "s1", "s2",
|
OptionsParser.parse(new String[] { "-diff", "s1", "s2",
|
||||||
"hdfs://localhost:8020/source/first",
|
"hdfs://localhost:8020/source/first",
|
||||||
"hdfs://localhost:8020/target/" });
|
"hdfs://localhost:8020/target/" });
|
||||||
fail("-diff should fail if -update or -delete option is not specified");
|
fail("-diff should fail if -update option is not specified");
|
||||||
} catch (IllegalArgumentException e) {
|
} catch (IllegalArgumentException e) {
|
||||||
GenericTestUtils.assertExceptionContains(
|
GenericTestUtils.assertExceptionContains(
|
||||||
"Diff is valid only with update and delete options", e);
|
"Diff is valid only with update options", e);
|
||||||
}
|
}
|
||||||
|
|
||||||
try {
|
try {
|
||||||
OptionsParser.parse(new String[] { "-diff", "s1", "s2", "-update",
|
OptionsParser.parse(new String[] { "-diff", "s1", "s2", "-update", "-delete",
|
||||||
"hdfs://localhost:8020/source/first",
|
"hdfs://localhost:8020/source/first",
|
||||||
"hdfs://localhost:8020/target/" });
|
"hdfs://localhost:8020/target/" });
|
||||||
fail("-diff should fail if -update or -delete option is not specified");
|
fail("-diff should fail if -delete option is specified");
|
||||||
} catch (IllegalArgumentException e) {
|
} catch (IllegalArgumentException e) {
|
||||||
GenericTestUtils.assertExceptionContains(
|
GenericTestUtils.assertExceptionContains(
|
||||||
"Diff is valid only with update and delete options", e);
|
"Diff is valid only with update options", e);
|
||||||
}
|
}
|
||||||
|
|
||||||
try {
|
try {
|
||||||
@ -714,10 +714,10 @@ public void testDiffOption() {
|
|||||||
"-delete", "-overwrite",
|
"-delete", "-overwrite",
|
||||||
"hdfs://localhost:8020/source/first",
|
"hdfs://localhost:8020/source/first",
|
||||||
"hdfs://localhost:8020/target/" });
|
"hdfs://localhost:8020/target/" });
|
||||||
fail("-diff should fail if -update or -delete option is not specified");
|
fail("-diff should fail if -update option is not specified");
|
||||||
} catch (IllegalArgumentException e) {
|
} catch (IllegalArgumentException e) {
|
||||||
GenericTestUtils.assertExceptionContains(
|
GenericTestUtils.assertExceptionContains(
|
||||||
"Diff is valid only with update and delete options", e);
|
"Diff is valid only with update options", e);
|
||||||
}
|
}
|
||||||
}
|
}
|
||||||
|
|
||||||
|
Loading…
Reference in New Issue
Block a user