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https://issues.apache.org/jira/browse/HDFS-14250?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16758715#comment-16758715
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Erik Krogen commented on HDFS-14250:
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Great ! +1 from me pending Jenkins, will commit early next week unless there
are any objections from others before then.
> [Standby Reads] msync should sync with active NameNode to fetch the latest
> stateID
> ----------------------------------------------------------------------------------
>
> Key: HDFS-14250
> URL: https://issues.apache.org/jira/browse/HDFS-14250
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: namenode
> Reporter: Chao Sun
> Assignee: Chao Sun
> Priority: Major
> Attachments: HDFS-14250.000.patch, HDFS-14250.001.patch
>
>
> Currently the {{msync}} call is a dummy operation to observer without really
> syncing. Instead, it should:
> # Get the latest stateID from active NN.
> # Use the stateID to talk to observer NN and make sure it is synced.
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