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Hudson commented on HDFS-4995: ------------------------------ FAILURE: Integrated in Hadoop-Hdfs-trunk #1583 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1583/]) HDFS-4995. Make getContentSummary less expensive. Contributed by Kihwal Lee. (kihwal: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1541971) * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/CHANGES.txt * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/DFSConfigKeys.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/ContentSummaryComputationContext.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSDirectory.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INode.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectory.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeDirectoryWithQuota.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeFile.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeMap.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeReference.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/INodeSymlink.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeDirectorySnapshottable.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/snapshot/INodeDirectoryWithSnapshot.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/TestQuota.java > Make getContentSummary() less expensive > --------------------------------------- > > Key: HDFS-4995 > URL: https://issues.apache.org/jira/browse/HDFS-4995 > Project: Hadoop HDFS > Issue Type: Bug > Components: namenode > Affects Versions: 0.23.9, 2.3.0 > Reporter: Kihwal Lee > Assignee: Kihwal Lee > Fix For: 3.0.0, 2.3.0, 0.23.10 > > Attachments: HDFS-4995.branch-0.23.3.patch, HDFS-4995.trunk.2.patch, > HDFS-4995.trunk.3.patch, HDFS-4995.trunk.patch, HDFS-4995.trunk1.patch > > > When users call du or count DFS command, getContentSummary() method is called > against namenode. If the directory has many directories and files, it could > hold the namesystem lock for a long time. We've seen it taking over 20 > seconds. Namenode should not allow regular users to cause extended locking. -- This message was sent by Atlassian JIRA (v6.1#6144)