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Posted to hdfs-dev@hadoop.apache.org by "Chao Sun (JIRA)" <ji...@apache.org> on 2019/01/31 19:50:00 UTC

[jira] [Created] (HDFS-14250) [Standby Reads] msync should sync with active NameNode to fetch the latest stateID

Chao Sun created HDFS-14250:
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             Summary: [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


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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