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https://issues.apache.org/jira/browse/HBASE-2975?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Todd Lipcon updated HBASE-2975:
-------------------------------
Status: Resolved (was: Patch Available)
Hadoop Flags: [Reviewed]
Fix Version/s: 0.90.0
Resolution: Fixed
Committed to 0.89.20100830 branch, plus trunk. Thanks for reviewing stack.
> DFSClient names in master and RS should be unique
> -------------------------------------------------
>
> Key: HBASE-2975
> URL: https://issues.apache.org/jira/browse/HBASE-2975
> Project: HBase
> Issue Type: Bug
> Components: master, regionserver
> Affects Versions: 0.90.0
> Reporter: Todd Lipcon
> Assignee: Todd Lipcon
> Priority: Critical
> Fix For: 0.90.0
>
> Attachments: hbase-2975.txt
>
>
> In the post-newmaster trunk, there's some code which gives the regionserver
> and masters fancy names based on hostname and port. This breaks log recovery,
> though, if the master starts recovering a log (ie has an append lease on a
> log file), then crashes and comes back on the same port. The NN doesn't see
> this as a new client, since the client name is the same, so it thinks it
> still holds a lease on the file. The new master, though, can't call append()
> because the NN thinks it's appending, so it loops forever.
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