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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2812) When becoming active, NN should treat all leases as freshly renewed
Date Thu, 19 Jan 2012 19:42:41 GMT
When becoming active, NN should treat all leases as freshly renewed
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                 Key: HDFS-2812
                 URL: https://issues.apache.org/jira/browse/HDFS-2812
             Project: Hadoop HDFS
          Issue Type: Sub-task
          Components: ha, name-node
    Affects Versions: HA branch (HDFS-1623)
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
            Priority: Critical


I haven't seen this yet in practice, but I think the following is a bug:
- Clients currently only renew leases to the active NN
- Leases are written into the log when created, but there is no record to renew them
- In Standby state, we don't check leases for expiration. But, when we fail over and start
the lease monitor, since the leases haven't been renewed, they might end up getting incorrectly
released.

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