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Hudson commented on HDFS-1850: ------------------------------ Integrated in Hadoop-Hdfs-22-branch #41 (See [https://builds.apache.org/hudson/job/Hadoop-Hdfs-22-branch/41/]) > DN should transmit absolute failed volume count rather than increments to the > NN > -------------------------------------------------------------------------------- > > Key: HDFS-1850 > URL: https://issues.apache.org/jira/browse/HDFS-1850 > Project: Hadoop HDFS > Issue Type: Bug > Components: data-node, name-node > Reporter: Eli Collins > Assignee: Eli Collins > Fix For: 0.22.0 > > Attachments: hdfs-1850-1.patch, hdfs-1850-2.patch, hdfs-1850-3.patch, > hdfs-1850-4.patch, hdfs-1850-5.patch, hdfs-1850-6.patch, hdfs-1850-7.patch > > > The API added in HDFS-811 for the DN to report volume failures to the NN is > "inc(DN)". However the given sequence of events will result in the NN > forgetting about reported failed volumes: > # DN loses a volume and reports it > # NN restarts > # DN re-registers to the new NN > A more robust interface would be to have the DN report the total number of > volume failures to the NN each heart beat (the same way other volume state is > transmitted). -- This message is automatically generated by JIRA. For more information on JIRA, see: http://www.atlassian.com/software/jira