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Tsz Wo Nicholas Sze commented on HDFS-7885: ------------------------------------------- I see. The problem is only in legacy.blockreader.local, which uses the generation stamp passed by client. Just have checked the remote block reader. It does not have such bug. > Datanode should not trust the generation stamp provided by client > ----------------------------------------------------------------- > > Key: HDFS-7885 > URL: https://issues.apache.org/jira/browse/HDFS-7885 > Project: Hadoop HDFS > Issue Type: Bug > Components: datanode > Affects Versions: 2.2.0 > Reporter: vitthal (Suhas) Gogate > Assignee: Tsz Wo Nicholas Sze > Priority: Critical > > Datanode should not trust the generation stamp provided by client, since it > is prefetched and buffered in client, and concurrent append may increase it. -- This message was sent by Atlassian JIRA (v6.3.4#6332)