HA: Tests and fixes for pipeline targets and replica recovery -------------------------------------------------------------
Key: HDFS-2691 URL: https://issues.apache.org/jira/browse/HDFS-2691 Project: Hadoop HDFS Issue Type: Sub-task Components: ha Affects Versions: HA branch (HDFS-1623) Reporter: Todd Lipcon Assignee: Todd Lipcon Priority: Critical Currently there are some TODOs around pipeline/recovery code in the HA branch. For example, commitBlockSynchronization only gets sent to the active NN which may have failed over by that point. So, we need to write some tests here and figure out what the correct behavior is. Another related area is the treatment of targets in the pipeline. When a pipeline is created, the active NN adds the "expected locations" to the BlockInfoUnderConstruction, but the DN identifiers aren't logged with the OP_ADD. So after a failover, the BlockInfoUnderConstruction will have no targets and I imagine replica recovery would probably trigger some issues. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa For more information on JIRA, see: http://www.atlassian.com/software/jira