HDFS-10549. Correctly revoke file leases when closing files. Contributed by Yiqun Lin.
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c57523163f
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2aa5e2c403
@ -463,7 +463,7 @@ private void beginFileLease(final long inodeId, final DFSOutputStream out)
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}
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/** Stop renewal of lease for the file. */
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void endFileLease(final long inodeId) throws IOException {
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void endFileLease(final long inodeId) {
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getLeaseRenewer().closeFile(inodeId, this);
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}
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@ -57,6 +57,7 @@
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import org.apache.hadoop.hdfs.server.namenode.SafeModeException;
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import org.apache.hadoop.hdfs.util.ByteArrayManager;
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import org.apache.hadoop.io.EnumSetWritable;
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import org.apache.hadoop.io.MultipleIOException;
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import org.apache.hadoop.ipc.RemoteException;
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import org.apache.hadoop.security.AccessControlException;
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import org.apache.hadoop.security.token.Token;
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@ -732,6 +733,7 @@ protected synchronized void start() {
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* resources associated with this stream.
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*/
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void abort() throws IOException {
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final MultipleIOException.Builder b = new MultipleIOException.Builder();
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synchronized (this) {
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if (isClosed()) {
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return;
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@ -740,9 +742,19 @@ void abort() throws IOException {
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new IOException("Lease timeout of "
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+ (dfsClient.getConf().getHdfsTimeout() / 1000)
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+ " seconds expired."));
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closeThreads(true);
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try {
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closeThreads(true);
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} catch (IOException e) {
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b.add(e);
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}
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}
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dfsClient.endFileLease(fileId);
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final IOException ioe = b.build();
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if (ioe != null) {
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throw ioe;
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}
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}
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boolean isClosed() {
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@ -775,13 +787,21 @@ protected void closeThreads(boolean force) throws IOException {
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*/
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@Override
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public void close() throws IOException {
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final MultipleIOException.Builder b = new MultipleIOException.Builder();
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synchronized (this) {
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try (TraceScope ignored = dfsClient.newPathTraceScope(
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"DFSOutputStream#close", src)) {
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closeImpl();
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} catch (IOException e) {
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b.add(e);
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}
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}
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dfsClient.endFileLease(fileId);
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final IOException ioe = b.build();
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if (ioe != null) {
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throw ioe;
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}
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}
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protected synchronized void closeImpl() throws IOException {
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@ -798,6 +798,7 @@ protected synchronized void start() {
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@Override
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void abort() throws IOException {
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final MultipleIOException.Builder b = new MultipleIOException.Builder();
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synchronized (this) {
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if (isClosed()) {
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return;
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@ -808,9 +809,19 @@ void abort() throws IOException {
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+ (dfsClient.getConf().getHdfsTimeout() / 1000)
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+ " seconds expired."));
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}
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closeThreads(true);
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try {
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closeThreads(true);
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} catch (IOException e) {
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b.add(e);
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}
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}
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dfsClient.endFileLease(fileId);
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final IOException ioe = b.build();
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if (ioe != null) {
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throw ioe;
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}
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}
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@Override
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@ -71,6 +71,7 @@
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import org.apache.hadoop.fs.StorageType;
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import org.apache.hadoop.fs.permission.FsPermission;
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import org.apache.hadoop.hdfs.client.HdfsClientConfigKeys;
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import org.apache.hadoop.hdfs.client.impl.LeaseRenewer;
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import org.apache.hadoop.hdfs.DFSOpsCountStatistics.OpType;
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import org.apache.hadoop.hdfs.net.Peer;
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import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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@ -96,7 +97,6 @@
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import org.junit.Test;
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import org.mockito.InOrder;
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import org.mockito.internal.util.reflection.Whitebox;
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import org.slf4j.Logger;
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import org.slf4j.LoggerFactory;
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@ -1373,4 +1373,37 @@ public void testTotalDfsUsed() throws Exception {
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}
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}
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@Test
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public void testDFSCloseFilesBeingWritten() throws Exception {
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Configuration conf = getTestConfiguration();
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MiniDFSCluster cluster = null;
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try {
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cluster = new MiniDFSCluster.Builder(conf).numDataNodes(1).build();
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DistributedFileSystem fileSys = cluster.getFileSystem();
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// Create one file then delete it to trigger the FileNotFoundException
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// when closing the file.
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fileSys.create(new Path("/test/dfsclose/file-0"));
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fileSys.delete(new Path("/test/dfsclose/file-0"), true);
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DFSClient dfsClient = fileSys.getClient();
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// Construct a new dfsClient to get the same LeaseRenewer instance,
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// to avoid the original client being added to the leaseRenewer again.
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DFSClient newDfsClient =
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new DFSClient(cluster.getFileSystem(0).getUri(), conf);
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LeaseRenewer leaseRenewer = newDfsClient.getLeaseRenewer();
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dfsClient.closeAllFilesBeingWritten(false);
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// Remove new dfsClient in leaseRenewer
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leaseRenewer.closeClient(newDfsClient);
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// The list of clients corresponding to this renewer should be empty
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assertEquals(true, leaseRenewer.isEmpty());
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assertEquals(true, dfsClient.isFilesBeingWrittenEmpty());
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} finally {
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if (cluster != null) {
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cluster.shutdown();
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}
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}
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}
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}
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