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Posted to hdfs-dev@hadoop.apache.org by "Chen Liang (JIRA)" <ji...@apache.org> on 2018/06/18 19:38:00 UTC

[jira] [Created] (HDFS-13688) Introduce msync API call

Chen Liang created HDFS-13688:
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             Summary: Introduce msync API call
                 Key: HDFS-13688
                 URL: https://issues.apache.org/jira/browse/HDFS-13688
             Project: Hadoop HDFS
          Issue Type: Sub-task
            Reporter: Chen Liang
            Assignee: Chen Liang


As mentioned in the design doc in HDFS-12943, to ensure consistent read, we need to introduce an RPC call {{msync}}. Specifically, client can issue a msync call to Observer node along with a transactionID. The msync will only return when the Observer's transactionID has caught up to the given ID. This JIRA is to add this API.



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