HDFS-7643. Test case to ensure lazy persist files cannot be truncated. (Contributed by Yi Liu)
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@ -494,6 +494,9 @@ Release 2.7.0 - UNRELEASED
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HDFS-7634. Disallow truncation of Lazy persist files. (Yi Liu via
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Arpit Agarwal)
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HDFS-7643. Test case to ensure lazy persist files cannot be truncated.
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(Yi Liu via Arpit Agarwal)
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Release 2.6.1 - UNRELEASED
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INCOMPATIBLE CHANGES
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@ -23,13 +23,10 @@ import org.apache.hadoop.hdfs.protocol.HdfsConstants;
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import org.apache.hadoop.hdfs.protocol.HdfsFileStatus;
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import org.apache.hadoop.hdfs.protocol.LocatedBlock;
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import org.apache.hadoop.hdfs.protocol.LocatedBlocks;
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import org.apache.hadoop.hdfs.server.datanode.DatanodeUtil;
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import org.apache.hadoop.hdfs.server.datanode.fsdataset.FsVolumeSpi;
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import org.apache.hadoop.test.GenericTestUtils;
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import org.junit.Assert;
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import org.junit.Test;
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import java.io.File;
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import java.io.IOException;
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import java.util.concurrent.CountDownLatch;
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import java.util.concurrent.ExecutorService;
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@ -37,9 +34,6 @@ import java.util.concurrent.Executors;
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import java.util.concurrent.atomic.AtomicBoolean;
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import java.util.ArrayList;
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import java.util.Collections;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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import static org.apache.hadoop.hdfs.DFSConfigKeys.*;
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import static org.apache.hadoop.hdfs.StorageType.DEFAULT;
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@ -247,6 +241,26 @@ public class TestLazyPersistFiles extends LazyPersistTestCase {
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}
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}
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/**
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* Truncate to lazy persist file is denied.
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* @throws IOException
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*/
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@Test
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public void testTruncateIsDenied() throws IOException {
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startUpCluster(true, -1);
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final String METHOD_NAME = GenericTestUtils.getMethodName();
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Path path = new Path("/" + METHOD_NAME + ".dat");
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makeTestFile(path, BLOCK_SIZE, true);
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try {
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client.truncate(path.toString(), BLOCK_SIZE/2);
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fail("Truncate to LazyPersist file did not fail as expected");
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} catch (Throwable t) {
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LOG.info("Got expected exception ", t);
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}
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}
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/**
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* If one or more replicas of a lazyPersist file are lost, then the file
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* must be discarded by the NN, instead of being kept around as a
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