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From "Erik Krogen (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-14250) [SBN read] msync should sync with active NameNode to fetch the latest stateID
Date Wed, 06 Feb 2019 17:56:00 GMT

     [ https://issues.apache.org/jira/browse/HDFS-14250?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Erik Krogen updated HDFS-14250:
-------------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 3.3.0
           Status: Resolved  (was: Patch Available)

> [SBN read] 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
>             Fix For: 3.3.0
>
>         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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