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https://issues.apache.org/jira/browse/HDFS-1149?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13040038#comment-13040038
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Todd Lipcon commented on HDFS-1149:
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This also affects HA failover.
> Lease reassignment is not persisted to edit log
> -----------------------------------------------
>
> Key: HDFS-1149
> URL: https://issues.apache.org/jira/browse/HDFS-1149
> Project: Hadoop HDFS
> Issue Type: Bug
> Components: name-node
> Affects Versions: 0.21.0
> Reporter: Todd Lipcon
>
> During lease recovery, the lease gets reassigned to a special NN holder. This
> is not currently persisted to the edit log, which means that after an NN
> restart, the original leaseholder could end up allocating more blocks or
> completing a file that has already started recovery.
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