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HDFS-7643. Test case to ensure lazy persist files cannot be truncated. (Contributed by Yi Liu)

This commit is contained in:
Arpit Agarwal 2015-01-20 21:58:15 -08:00
parent a1222784fb
commit 6b17eb9eac
2 changed files with 23 additions and 6 deletions
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3
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -281,6 +281,9 @@ Trunk (Unreleased)
HDFS-7634. Disallow truncation of Lazy persist files. (Yi Liu via
Arpit Agarwal)
HDFS-7643. Test case to ensure lazy persist files cannot be truncated.
(Yi Liu via Arpit Agarwal)
Release 2.7.0 - UNRELEASED
INCOMPATIBLE CHANGES

26
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/datanode/fsdataset/impl/TestLazyPersistFiles.java
View File

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