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Posted to issues@hbase.apache.org by "Sandeep Guggilam (Jira)" <ji...@apache.org> on 2020/05/27 16:30:00 UTC

[jira] [Created] (HBASE-24446) Use EnvironmentEdgeManager to compute clock skew in Master

Sandeep Guggilam created HBASE-24446:
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             Summary: Use EnvironmentEdgeManager to compute clock skew in Master
                 Key: HBASE-24446
                 URL: https://issues.apache.org/jira/browse/HBASE-24446
             Project: HBase
          Issue Type: Bug
    Affects Versions: 1.6.0
            Reporter: Sandeep Guggilam
            Assignee: Sandeep Guggilam
             Fix For: 3.0.0-alpha-1, 1.7.0, 2.4.0


There are few cases where the Master is not able to complete the initialization as it waiting for the region server to report to it. The region server actually reported to the master but the master rejected the request because of clock skew issue though both of them are on  same JVM

The Region server uses EnvironmentEdgeManager.currentTime to report the current time and HMaster uses System.currentTimeMillis() to get the current time for computation against the reported time by RS.  We should also just use EnvironmentEdgeManager even in Master as we are expected not to use System.currentTime directly and instead go through EnvironmentEdgeManager

 



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