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HDFS-6518. TestCacheDirectives#testExceedsCapacity should take FSN read lock when accessing pendingCached list. (wang) 

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/branches/branch-2@1603017 13f79535-47bb-0310-9956-ffa450edef68
This commit is contained in:
Andrew Wang 2014-06-16 22:48:22 +00:00
parent ce88f5d63a
commit 88344f9b06
2 changed files with 15 additions and 6 deletions
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4
hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt
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@ -186,6 +186,10 @@ Release 2.5.0 - UNRELEASED
HDFS-6499. Use NativeIO#renameTo instead of File#renameTo in
FileJournalManager. (Yongjun Zhang via atm)
HDFS-6518. TestCacheDirectives#testExceedsCapacity should
take FSN read lock when accessing pendingCached list.
(wang)
OPTIMIZATIONS
HDFS-6214. Webhdfs has poor throughput for files >2GB (daryn)

17
hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestCacheDirectives.java
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@ -1408,12 +1408,17 @@ public class TestCacheDirectives {
*/
private void checkPendingCachedEmpty(MiniDFSCluster cluster)
throws Exception {
final DatanodeManager datanodeManager =
cluster.getNamesystem().getBlockManager().getDatanodeManager();
for (DataNode dn : cluster.getDataNodes()) {
DatanodeDescriptor descriptor =
datanodeManager.getDatanode(dn.getDatanodeId());
Assert.assertTrue(descriptor.getPendingCached().isEmpty());
cluster.getNamesystem().readLock();
try {
final DatanodeManager datanodeManager =
cluster.getNamesystem().getBlockManager().getDatanodeManager();
for (DataNode dn : cluster.getDataNodes()) {
DatanodeDescriptor descriptor =
datanodeManager.getDatanode(dn.getDatanodeId());
Assert.assertTrue(descriptor.getPendingCached().isEmpty());
}
} finally {
cluster.getNamesystem().readUnlock();
}
}