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Todd Lipcon commented on HDFS-2731: ----------------------------------- bq. as an optimization it could copy the logs from the shared dir I dont think it's necessarily an optimization - might actually be _easier_ to implement this way :) bq. If the other NN is still in standby then it should fail to start as it does currently Can you explain what you mean by this? Why not allow it to download the image from the other NN anyway? > Autopopulate standby name dirs if they're empty > ----------------------------------------------- > > Key: HDFS-2731 > URL: https://issues.apache.org/jira/browse/HDFS-2731 > Project: Hadoop HDFS > Issue Type: Sub-task > Components: ha > Affects Versions: HA branch (HDFS-1623) > Reporter: Eli Collins > Assignee: Eli Collins > > To setup a SBN we currently format the primary then manually copy the name > dirs to the SBN. The SBN should do this automatically. Specifically, on NN > startup, if HA with a shared edits dir is configured and populated, if the > SBN has empty name dirs it should downloads the image and log from the > primary (as an optimization it could copy the logs from the shared dir). If > the other NN is still in standby then it should fail to start as it does > currently. -- 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