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Hudson commented on HDFS-5076: ------------------------------ SUCCESS: Integrated in Hadoop-Hdfs-trunk #1493 (See [https://builds.apache.org/job/Hadoop-Hdfs-trunk/1493/]) HDFS-5076. Add MXBean methods to query NN's transaction information and JournalNode's journal status. Contributed by Jing Zhao. (jing9: http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1514422) * /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/qjournal/server/JournalNode.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/qjournal/server/JournalNodeMXBean.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/NameNodeMXBean.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/qjournal/server/TestJournalNodeMXBean.java * /hadoop/common/trunk/hadoop-hdfs-project/hadoop-hdfs/src/test/java/org/apache/hadoop/hdfs/server/namenode/TestNameNodeMXBean.java > Add MXBean methods to query NN's transaction information and JournalNode's > journal status > ----------------------------------------------------------------------------------------- > > Key: HDFS-5076 > URL: https://issues.apache.org/jira/browse/HDFS-5076 > Project: Hadoop HDFS > Issue Type: New Feature > Affects Versions: 3.0.0 > Reporter: Jing Zhao > Assignee: Jing Zhao > Priority: Minor > Fix For: 2.1.1-beta > > Attachments: HDFS-5076.001.patch, HDFS-5076.002.patch, > HDFS-5076.003.patch, HDFS-5076.004.patch, HDFS-5076.005.patch > > > Currently NameNode already provides RPC calls to get its last applied > transaction ID and most recent checkpoint's transaction ID. It can be helpful > to provide support to enable querying these information through JMX, so that > administrators and applications like Ambari can easily decide if a forced > checkpoint by calling saveNamespace is necessary. Similarly we can add MxBean > interface for JournalNodes to query the status of journals (e.g., whether > journals are formatted or not). -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira