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From "Todd Lipcon (Created) (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-2507) HA: Allow saveNamespace operations to be canceled
Date Wed, 26 Oct 2011 18:19:32 GMT
HA: Allow saveNamespace operations to be canceled

                 Key: HDFS-2507
                 URL: https://issues.apache.org/jira/browse/HDFS-2507
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: name-node
    Affects Versions: HA branch (HDFS-1623), 0.23.0
            Reporter: Todd Lipcon

For HDFS-2291 (checkpointing in HA setup) we need to allow the StandbyNode to handle a failover
while it may be in the middle of saving a checkpoint. This implies that checkpoints need to
be abortable.

This JIRA is to implement this functionality. Even though this is only needed for HA, I think
we should do the infrastructure in trunk to simplify future merges.

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