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Hudson commented on HDFS-6448: ------------------------------ SUCCESS: Integrated in Hadoop-trunk-Commit #5616 (See [https://builds.apache.org/job/Hadoop-trunk-Commit/5616/]) HDFS-6448. BlockReaderLocalLegacy should set socket timeout based on conf.socketTimeout (liangxie via cmccabe) (cmccabe: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1598079) * /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/BlockReaderLocalLegacy.java > BlockReaderLocalLegacy should set socket timeout based on conf.socketTimeout > ---------------------------------------------------------------------------- > > Key: HDFS-6448 > URL: https://issues.apache.org/jira/browse/HDFS-6448 > Project: Hadoop HDFS > Issue Type: Improvement > Components: hdfs-client > Affects Versions: 3.0.0, 2.4.0 > Reporter: Liang Xie > Assignee: Liang Xie > Fix For: 2.5.0 > > Attachments: HDFS-6448.txt > > > Our hbase deployed upon hadoop2.0, in one accident, we hit HDFS-5016 in HDFS > side, but we also found from HBase side, the dfs client was hung at > getBlockReader, after reading code, we found there is a timeout setting in > current codebase though, but the default hdfsTimeout value is "-1" ( from > Client.java:getTimeout(conf) )which means no timeout... > The hung stack trace like following: > at $Proxy21.getBlockLocalPathInfo(Unknown Source) > at > org.apache.hadoop.hdfs.protocolPB.ClientDatanodeProtocolTranslatorPB.getBlockLocalPathInfo(ClientDatanodeProtocolTranslatorPB.java:215) > at > org.apache.hadoop.hdfs.BlockReaderLocal.getBlockPathInfo(BlockReaderLocal.java:267) > at > org.apache.hadoop.hdfs.BlockReaderLocal.newBlockReader(BlockReaderLocal.java:180) > at org.apache.hadoop.hdfs.DFSClient.getLocalBlockReader(DFSClient.java:812) > One feasible fix is replacing the hdfsTimeout with socketTimeout. see > attached patch. Most of credit should give [~liushaohui] -- This message was sent by Atlassian JIRA (v6.2#6252)