HADOOP-15117. open(PathHandle) contract test should be exhaustive for default options
This commit is contained in:
Chris Douglas
parent
4bb765ee2e
commit
7fe6f83c8f
@ -19,27 +19,17 @@
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import java.io.FileNotFoundException;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.util.Arrays;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.CommonConfigurationKeysPublic;
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import org.apache.hadoop.fs.FSDataInputStream;
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import org.apache.hadoop.fs.FileStatus;
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import org.apache.hadoop.fs.InvalidPathHandleException;
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import org.apache.hadoop.fs.Options.HandleOpt;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.PathHandle;
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import org.apache.hadoop.fs.RawPathHandle;
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import org.apache.hadoop.io.IOUtils;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.appendFile;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.createFile;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.skip;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.touch;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.verifyRead;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.verifyFileContents;
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import org.junit.Test;
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@ -173,252 +163,4 @@ public void testSequentialRead() throws Throwable {
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instream.close();
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}
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/**
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* Skip a test case if the FS doesn't support file references.
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* The feature is assumed to be unsupported unless stated otherwise.
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*/
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protected void assumeSupportsFileReference() throws IOException {
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if (getContract().isSupported(SUPPORTS_FILE_REFERENCE, false)) {
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return;
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}
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skip("Skipping as unsupported feature: " + SUPPORTS_FILE_REFERENCE);
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}
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/**
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* Skip a test case if the FS doesn't support content validation.
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* The feature is assumed to be unsupported unless stated otherwise.
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*/
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protected void assumeSupportsContentCheck() throws IOException {
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if (getContract().isSupported(SUPPORTS_CONTENT_CHECK, false)) {
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return;
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}
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skip("Skipping as unsupported feature: " + SUPPORTS_CONTENT_CHECK);
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}
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private PathHandle getHandleOrSkip(FileStatus stat, HandleOpt... opts) {
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try {
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return getFileSystem().getPathHandle(stat, opts);
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} catch (UnsupportedOperationException e) {
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skip("FileSystem does not support " + Arrays.toString(opts));
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}
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// unreachable
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return null;
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}
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/**
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* Verify {@link HandleOpt#exact()} handle semantics.
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* @throws Throwable on error
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*/
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@Test
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public void testOpenFileByExact() throws Throwable {
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describe("verify open(getPathHandle(FileStatus, exact())) operations" +
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"detect changes");
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assumeSupportsContentCheck();
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assumeSupportsFileReference();
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Path path1 = path("testopenfilebyexact1");
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Path path2 = path("testopenfilebyexact2");
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byte[] file1 = dataset(TEST_FILE_LEN, 43, 255);
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createFile(getFileSystem(), path1, false, file1);
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FileStatus stat1 = getFileSystem().getFileStatus(path1);
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assertNotNull(stat1);
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assertEquals(path1, stat1.getPath());
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ContractTestUtils.rename(getFileSystem(), path1, path2);
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FileStatus stat2 = getFileSystem().getFileStatus(path2);
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assertNotNull(stat2);
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assertEquals(path2, stat2.getPath());
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// create identical file at same location, orig still exists at path2
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createFile(getFileSystem(), path1, false, file1);
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PathHandle fd1 = getHandleOrSkip(stat1, HandleOpt.exact());
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PathHandle fd2 = getHandleOrSkip(stat2, HandleOpt.exact());
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// verify path1, path2 contents identical
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verifyFileContents(getFileSystem(), path1, file1);
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verifyFileContents(getFileSystem(), path2, file1);
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try {
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// the PathHandle will not resolve, even though
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// the original entity exists, it has not been modified, and an
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// identical file exists at the old path. The handle would also
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// fail to resolve if path1 had been modified
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instream = getFileSystem().open(fd1);
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fail("Expected an exception");
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} catch (InvalidPathHandleException e) {
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// expected
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}
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// verify unchanged resolves
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instream = getFileSystem().open(fd2);
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verifyRead(instream, file1, 0, TEST_FILE_LEN);
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}
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/**
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* Verify {@link HandleOpt#content()} handle semantics.
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* @throws Throwable on error
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*/
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@Test
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public void testOpenFileByContent() throws Throwable {
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describe("verify open(getPathHandle(FileStatus, content())) operations" +
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"follow relocation");
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assumeSupportsContentCheck();
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assumeSupportsFileReference();
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Path path1 = path("testopenfilebycontent1");
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Path path2 = path("testopenfilebycontent2");
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byte[] file1 = dataset(TEST_FILE_LEN, 43, 255);
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createFile(getFileSystem(), path1, false, file1);
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FileStatus stat = getFileSystem().getFileStatus(path1);
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assertNotNull(stat);
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assertEquals(path1, stat.getPath());
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// rename the file after obtaining FileStatus
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ContractTestUtils.rename(getFileSystem(), path1, path2);
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// obtain handle to entity from #getFileStatus call
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PathHandle fd = getHandleOrSkip(stat, HandleOpt.content());
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try (FSDataInputStream in = getFileSystem().open(fd)) {
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// verify read of consistent content at new location
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verifyRead(in, file1, 0, TEST_FILE_LEN);
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}
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// modify the file at its new location by appending data
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byte[] file1a = dataset(TEST_FILE_LEN, 44, 255);
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appendFile(getFileSystem(), path2, file1a);
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byte[] file1x = Arrays.copyOf(file1, file1.length + file1a.length);
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System.arraycopy(file1a, 0, file1x, file1.length, file1a.length);
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// verify fd entity contains contents of file1 + appended bytes
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verifyFileContents(getFileSystem(), path2, file1x);
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try {
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// handle should not resolve when content changed
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instream = getFileSystem().open(fd);
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fail("Failed to detect change to content");
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} catch (InvalidPathHandleException e) {
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// expected
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}
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}
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/**
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* Verify {@link HandleOpt#path()} handle semantics.
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* @throws Throwable on error
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*/
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@Test
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public void testOpenFileByPath() throws Throwable {
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describe("verify open(getPathHandle(FileStatus, path())) operations" +
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"detect changes");
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assumeSupportsContentCheck();
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Path path1 = path("testopenfilebypath1");
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Path path2 = path("testopenfilebypath2");
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byte[] file1 = dataset(TEST_FILE_LEN, 43, 255);
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createFile(getFileSystem(), path1, false, file1);
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FileStatus stat1 = getFileSystem().getFileStatus(path1);
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assertNotNull(stat1);
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assertEquals(path1, stat1.getPath());
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ContractTestUtils.rename(getFileSystem(), path1, path2);
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FileStatus stat2 = getFileSystem().getFileStatus(path2);
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assertNotNull(stat2);
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assertEquals(path2, stat2.getPath());
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// create identical file at same location, orig still exists at path2
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createFile(getFileSystem(), path1, false, file1);
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PathHandle fd1 = getHandleOrSkip(stat1, HandleOpt.path());
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PathHandle fd2 = getHandleOrSkip(stat2, HandleOpt.path());
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// verify path1, path2 contents identical
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verifyFileContents(getFileSystem(), path1, file1);
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verifyFileContents(getFileSystem(), path2, file1);
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try {
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// verify attempt to resolve the handle fails
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instream = getFileSystem().open(fd1);
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fail("Expected an exception");
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} catch (InvalidPathHandleException e) {
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// expected
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}
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// verify content change OK
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byte[] file2a = dataset(TEST_FILE_LEN, 44, 255);
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ContractTestUtils.appendFile(getFileSystem(), path2, file2a);
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byte[] file2x = Arrays.copyOf(file1, file1.length + file2a.length);
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System.arraycopy(file2a, 0, file2x, file1.length, file2a.length);
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// verify path2 contains contents of orig + appended bytes
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verifyFileContents(getFileSystem(), path2, file2x);
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// verify open by fd succeeds
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instream = getFileSystem().open(fd2);
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verifyRead(instream, file2x, 0, 2 * TEST_FILE_LEN);
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}
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/**
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* Verify {@link HandleOpt#reference()} handle semantics.
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* @throws Throwable on error
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*/
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@Test
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public void testOpenFileByReference() throws Throwable {
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describe("verify open(getPathHandle(FileStatus, reference())) operations" +
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" are independent of rename");
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assumeSupportsFileReference();
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Path path1 = path("testopenfilebyref1");
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Path path2 = path("testopenfilebyref2");
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byte[] file1 = dataset(TEST_FILE_LEN, 43, 255);
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createFile(getFileSystem(), path1, false, file1);
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FileStatus stat = getFileSystem().getFileStatus(path1);
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assertNotNull(stat);
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assertEquals(path1, stat.getPath());
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ContractTestUtils.rename(getFileSystem(), path1, path2);
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byte[] file2 = dataset(TEST_FILE_LEN, 44, 255);
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createFile(getFileSystem(), path1, false, file2);
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byte[] file1a = dataset(TEST_FILE_LEN, 42, 255);
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appendFile(getFileSystem(), path2, file1a);
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byte[] file1x = Arrays.copyOf(file1, file1.length + file1a.length);
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System.arraycopy(file1a, 0, file1x, file1.length, file1a.length);
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PathHandle fd = getHandleOrSkip(stat, HandleOpt.reference());
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// verify path2 contains contents of file1 + appended bytes
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verifyFileContents(getFileSystem(), path2, file1x);
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// verify path1 contents contents of file2
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verifyFileContents(getFileSystem(), path1, file2);
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// verify fd contains contents of file1 + appended bytes
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instream = getFileSystem().open(fd);
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verifyRead(instream, file1x, 0, 2 * TEST_FILE_LEN);
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}
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/**
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* Verify {@link PathHandle} may be serialized and restored.
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* @throws Throwable on error
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*/
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@Test
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public void testOpenFileBySerializedReference() throws Throwable {
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describe("verify PathHandle supports generic serialization");
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assumeSupportsFileReference();
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Path path1 = path("testopenfilebyref1");
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Path path2 = path("testopenfilebyref2");
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byte[] file1 = dataset(TEST_FILE_LEN, 43, 255);
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createFile(getFileSystem(), path1, false, file1);
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FileStatus stat = getFileSystem().getFileStatus(path1);
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assertNotNull(stat);
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assertEquals(path1, stat.getPath());
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ContractTestUtils.rename(getFileSystem(), path1, path2);
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byte[] file2 = dataset(TEST_FILE_LEN, 44, 255);
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createFile(getFileSystem(), path1, false, file2);
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PathHandle fd = getHandleOrSkip(stat, HandleOpt.reference());
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// serialize PathHandle
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ByteBuffer sb = fd.bytes();
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PathHandle fdb = new RawPathHandle(sb);
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instream = getFileSystem().open(fdb);
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// verify stat contains contents of file1
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verifyRead(instream, file1, 0, TEST_FILE_LEN);
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// verify path2 contains contents of file1
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verifyFileContents(getFileSystem(), path2, file1);
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// verify path1 contents contents of file2
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verifyFileContents(getFileSystem(), path1, file2);
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}
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}
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@ -0,0 +1,246 @@
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/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.apache.hadoop.fs.contract;
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import java.io.IOException;
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import java.nio.ByteBuffer;
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import java.util.ArrayList;
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import java.util.Arrays;
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import java.util.Collection;
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import java.util.stream.Collectors;
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import org.apache.hadoop.conf.Configuration;
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import org.apache.hadoop.fs.FSDataInputStream;
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import org.apache.hadoop.fs.FileStatus;
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import org.apache.hadoop.fs.InvalidPathHandleException;
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import org.apache.hadoop.fs.Options.HandleOpt;
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import org.apache.hadoop.fs.Path;
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import org.apache.hadoop.fs.PathHandle;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.appendFile;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.createFile;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.dataset;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.skip;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.verifyRead;
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import static org.apache.hadoop.fs.contract.ContractTestUtils.verifyFileContents;
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import static org.apache.hadoop.fs.CommonConfigurationKeysPublic.IO_FILE_BUFFER_SIZE_KEY;
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import org.apache.hadoop.fs.RawPathHandle;
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import org.junit.Test;
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import org.junit.runner.RunWith;
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import org.junit.runners.Parameterized;
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/**
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* Test {@link PathHandle} operations and semantics.
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* @see ContractOptions#SUPPORTS_FILE_REFERENCE
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* @see ContractOptions#SUPPORTS_CONTENT_CHECK
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* @see org.apache.hadoop.fs.FileSystem#getPathHandle(FileStatus, HandleOpt...)
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* @see org.apache.hadoop.fs.FileSystem#open(PathHandle)
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* @see org.apache.hadoop.fs.FileSystem#open(PathHandle, int)
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*/
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@RunWith(Parameterized.class)
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public abstract class AbstractContractPathHandleTest
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extends AbstractFSContractTestBase {
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private final HandleOpt[] opts;
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private final boolean serialized;
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private static final byte[] B1 = dataset(TEST_FILE_LEN, 43, 255);
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private static final byte[] B2 = dataset(TEST_FILE_LEN, 44, 255);
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/**
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* Create an instance of the test from {@link #params()}.
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* @param testname Name of the set of options under test
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* @param opts Set of {@link HandleOpt} params under test.
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* @param serialized Serialize the handle before using it.
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*/
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public AbstractContractPathHandleTest(String testname, HandleOpt[] opts,
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boolean serialized) {
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this.opts = opts;
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this.serialized = serialized;
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}
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/**
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* Run test against all combinations of default options. Also run each
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* after converting the PathHandle to bytes and back.
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* @return
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*/
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@Parameterized.Parameters(name="Test{0}")
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public static Collection<Object[]> params() {
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return Arrays.asList(
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Arrays.asList("Exact", HandleOpt.exact()),
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Arrays.asList("Content", HandleOpt.content()),
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Arrays.asList("Path", HandleOpt.path()),
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Arrays.asList("Reference", HandleOpt.reference())
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).stream()
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.flatMap((x) -> Arrays.asList(true, false).stream()
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.map((b) -> {
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ArrayList<Object> y = new ArrayList<>(x);
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y.add(b);
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return y;
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}))
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.map(ArrayList::toArray)
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.collect(Collectors.toList());
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}
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@Override
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protected Configuration createConfiguration() {
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Configuration conf = super.createConfiguration();
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conf.setInt(IO_FILE_BUFFER_SIZE_KEY, 4096);
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return conf;
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}
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@Test
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public void testIdent() throws IOException {
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describe("verify simple open, no changes");
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FileStatus stat = testFile(B1);
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PathHandle fd = getHandleOrSkip(stat);
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verifyFileContents(getFileSystem(), stat.getPath(), B1);
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try (FSDataInputStream in = getFileSystem().open(fd)) {
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verifyRead(in, B1, 0, TEST_FILE_LEN);
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}
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}
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@Test
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public void testChanged() throws IOException {
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describe("verify open(PathHandle, changed(*))");
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assumeSupportsContentCheck();
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HandleOpt.Data data = HandleOpt.getOpt(HandleOpt.Data.class, opts)
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.orElseThrow(IllegalArgumentException::new);
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FileStatus stat = testFile(B1);
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// modify the file by appending data
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appendFile(getFileSystem(), stat.getPath(), B2);
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byte[] b12 = Arrays.copyOf(B1, B1.length + B2.length);
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System.arraycopy(B2, 0, b12, B1.length, B2.length);
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// verify fd entity contains contents of file1 + appended bytes
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verifyFileContents(getFileSystem(), stat.getPath(), b12);
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// get the handle *after* the file has been modified
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PathHandle fd = getHandleOrSkip(stat);
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try (FSDataInputStream in = getFileSystem().open(fd)) {
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assertTrue("Failed to detect content change", data.allowChange());
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verifyRead(in, b12, 0, b12.length);
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} catch (InvalidPathHandleException e) {
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assertFalse("Failed to allow content change", data.allowChange());
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}
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}
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@Test
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public void testMoved() throws IOException {
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describe("verify open(PathHandle, moved(*))");
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assumeSupportsFileReference();
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HandleOpt.Location loc = HandleOpt.getOpt(HandleOpt.Location.class, opts)
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.orElseThrow(IllegalArgumentException::new);
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FileStatus stat = testFile(B1);
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// rename the file after obtaining FileStatus
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ContractTestUtils.rename(getFileSystem(), stat.getPath(),
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path(stat.getPath() + "2"));
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// obtain handle to entity from #getFileStatus call
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PathHandle fd = getHandleOrSkip(stat);
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try (FSDataInputStream in = getFileSystem().open(fd)) {
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assertTrue("Failed to detect location change", loc.allowChange());
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verifyRead(in, B1, 0, B1.length);
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} catch (InvalidPathHandleException e) {
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assertFalse("Failed to allow location change", loc.allowChange());
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}
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}
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@Test
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public void testChangedAndMoved() throws IOException {
|
||||
describe("verify open(PathHandle, changed(*), moved(*))");
|
||||
assumeSupportsFileReference();
|
||||
assumeSupportsContentCheck();
|
||||
HandleOpt.Data data = HandleOpt.getOpt(HandleOpt.Data.class, opts)
|
||||
.orElseThrow(IllegalArgumentException::new);
|
||||
HandleOpt.Location loc = HandleOpt.getOpt(HandleOpt.Location.class, opts)
|
||||
.orElseThrow(IllegalArgumentException::new);
|
||||
FileStatus stat = testFile(B1);
|
||||
Path dst = path(stat.getPath() + "2");
|
||||
ContractTestUtils.rename(getFileSystem(), stat.getPath(), dst);
|
||||
appendFile(getFileSystem(), dst, B2);
|
||||
PathHandle fd = getHandleOrSkip(stat);
|
||||
|
||||
byte[] b12 = Arrays.copyOf(B1, B1.length + B2.length);
|
||||
System.arraycopy(B2, 0, b12, B1.length, B2.length);
|
||||
try (FSDataInputStream in = getFileSystem().open(fd)) {
|
||||
assertTrue("Failed to detect location change", loc.allowChange());
|
||||
assertTrue("Failed to detect content change", data.allowChange());
|
||||
verifyRead(in, b12, 0, b12.length);
|
||||
} catch (InvalidPathHandleException e) {
|
||||
if (data.allowChange()) {
|
||||
assertFalse("Failed to allow location change", loc.allowChange());
|
||||
}
|
||||
if (loc.allowChange()) {
|
||||
assertFalse("Failed to allow content change", data.allowChange());
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
private FileStatus testFile(byte[] content) throws IOException {
|
||||
Path path = path(methodName.getMethodName());
|
||||
createFile(getFileSystem(), path, false, content);
|
||||
FileStatus stat = getFileSystem().getFileStatus(path);
|
||||
assertNotNull(stat);
|
||||
assertEquals(path, stat.getPath());
|
||||
return stat;
|
||||
}
|
||||
|
||||
/**
|
||||
* Skip a test case if the FS doesn't support file references.
|
||||
* The feature is assumed to be unsupported unless stated otherwise.
|
||||
*/
|
||||
protected void assumeSupportsFileReference() throws IOException {
|
||||
if (getContract().isSupported(SUPPORTS_FILE_REFERENCE, false)) {
|
||||
return;
|
||||
}
|
||||
skip("Skipping as unsupported feature: " + SUPPORTS_FILE_REFERENCE);
|
||||
}
|
||||
|
||||
/**
|
||||
* Skip a test case if the FS doesn't support content validation.
|
||||
* The feature is assumed to be unsupported unless stated otherwise.
|
||||
*/
|
||||
protected void assumeSupportsContentCheck() throws IOException {
|
||||
if (getContract().isSupported(SUPPORTS_CONTENT_CHECK, false)) {
|
||||
return;
|
||||
}
|
||||
skip("Skipping as unsupported feature: " + SUPPORTS_CONTENT_CHECK);
|
||||
}
|
||||
|
||||
/**
|
||||
* Utility method to obtain a handle or skip the test if the set of opts
|
||||
* are not supported.
|
||||
* @param stat Target file status
|
||||
* @return Handle to the indicated entity or skip the test
|
||||
*/
|
||||
protected PathHandle getHandleOrSkip(FileStatus stat) {
|
||||
try {
|
||||
PathHandle fd = getFileSystem().getPathHandle(stat, opts);
|
||||
if (serialized) {
|
||||
ByteBuffer sb = fd.bytes();
|
||||
return new RawPathHandle(sb);
|
||||
}
|
||||
return fd;
|
||||
} catch (UnsupportedOperationException e) {
|
||||
skip("FileSystem does not support " + Arrays.toString(opts));
|
||||
}
|
||||
// unreachable
|
||||
return null;
|
||||
}
|
||||
}
|
||||
@ -66,6 +66,9 @@ public String getPath() {
|
||||
|
||||
public void verify(HdfsLocatedFileStatus stat)
|
||||
throws InvalidPathHandleException {
|
||||
if (null == stat) {
|
||||
throw new InvalidPathHandleException("Could not resolve handle");
|
||||
}
|
||||
if (mtime != null && mtime != stat.getModificationTime()) {
|
||||
throw new InvalidPathHandleException("Content changed");
|
||||
}
|
||||
|
||||
@ -0,0 +1,55 @@
|
||||
/**
|
||||
* Licensed to the Apache Software Foundation (ASF) under one
|
||||
* or more contributor license agreements. See the NOTICE file
|
||||
* distributed with this work for additional information
|
||||
* regarding copyright ownership. The ASF licenses this file
|
||||
* to you under the Apache License, Version 2.0 (the
|
||||
* "License"); you may not use this file except in compliance
|
||||
* with the License. You may obtain a copy of the License at
|
||||
*
|
||||
* http://www.apache.org/licenses/LICENSE-2.0
|
||||
*
|
||||
* Unless required by applicable law or agreed to in writing, software
|
||||
* distributed under the License is distributed on an "AS IS" BASIS,
|
||||
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
||||
* See the License for the specific language governing permissions and
|
||||
* limitations under the License.
|
||||
*/
|
||||
package org.apache.hadoop.fs.contract.hdfs;
|
||||
|
||||
import org.apache.hadoop.conf.Configuration;
|
||||
import org.apache.hadoop.fs.Options;
|
||||
import org.apache.hadoop.fs.contract.AbstractContractPathHandleTest;
|
||||
import org.apache.hadoop.fs.contract.AbstractFSContract;
|
||||
import org.junit.AfterClass;
|
||||
import org.junit.BeforeClass;
|
||||
|
||||
import java.io.IOException;
|
||||
|
||||
/**
|
||||
* Verify HDFS compliance with {@link org.apache.hadoop.fs.PathHandle}
|
||||
* semantics.
|
||||
*/
|
||||
public class TestHDFSContractPathHandle
|
||||
extends AbstractContractPathHandleTest {
|
||||
|
||||
public TestHDFSContractPathHandle(String testname, Options.HandleOpt[] opts,
|
||||
boolean serialized) {
|
||||
super(testname, opts, serialized);
|
||||
}
|
||||
|
||||
@BeforeClass
|
||||
public static void createCluster() throws IOException {
|
||||
HDFSContract.createCluster();
|
||||
}
|
||||
|
||||
@AfterClass
|
||||
public static void teardownCluster() throws IOException {
|
||||
HDFSContract.destroyCluster();
|
||||
}
|
||||
|
||||
@Override
|
||||
protected AbstractFSContract createContract(Configuration conf) {
|
||||
return new HDFSContract(conf);
|
||||
}
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user