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https://issues.apache.org/jira/browse/HDFS-10842?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Kihwal Lee updated HDFS-10842:
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Description: In a scenario where the initial full block report of a
Datanode is delayed after a re-registration, incremental block reports can
cause the NN to make error in judgment about what blocks are on a given DN. One
solution is to ignore the IBRs until the first full block report is received.
(was: In a scenario where a Datanode does not send a fullBlockReport,
incremental block reports can cause the NN to make error in judgement about
what blocks are on a given DN. One solution is to not process the blocks unless
we have received the first full block report.)
> Prevent IncrementalBlockReport processing before the first FullBlockReport
> has been received
> --------------------------------------------------------------------------------------------
>
> Key: HDFS-10842
> URL: https://issues.apache.org/jira/browse/HDFS-10842
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kuhu Shukla
> Assignee: Daryn Sharp
>
> In a scenario where the initial full block report of a Datanode is delayed
> after a re-registration, incremental block reports can cause the NN to make
> error in judgment about what blocks are on a given DN. One solution is to
> ignore the IBRs until the first full block report is received.
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