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Brahma Reddy Battula commented on HDFS-9917: -------------------------------------------- Testcase failure is unrelated ,HDFS-10253 is raised to track this..So Kindly review branch-2.7 and trunk patches.. > IBR accumulate more objects when SNN was down for sometime. > ----------------------------------------------------------- > > Key: HDFS-9917 > URL: https://issues.apache.org/jira/browse/HDFS-9917 > Project: Hadoop HDFS > Issue Type: Bug > Affects Versions: 2.7.2 > Reporter: Brahma Reddy Battula > Assignee: Brahma Reddy Battula > Priority: Critical > Attachments: HDFS-9917-02.patch, HDFS-9917-branch-2.7.patch, > HDFS-9917.patch > > > SNN was down for sometime because of some reasons..After restarting SNN,it > became unreponsive because > - 29 DN's sending IBR in each 5 million ( most of them are delete IBRs), > where as each datanode had only ~2.5 million blocks. > - GC can't trigger on this objects since all will be under RPC queue. > To recover this( to clear this objects) ,restarted all the DN's one by > one..This issue happened in 2.4.1 where split of blockreport was not > available. -- This message was sent by Atlassian JIRA (v6.3.4#6332)