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From "stack (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-5770) Add a clock skew warning threshold
Date Thu, 12 Apr 2012 05:22:37 GMT

     [ https://issues.apache.org/jira/browse/HBASE-5770?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-5770:
-------------------------

        Assignee: Ian Varley
    Hadoop Flags: Reviewed
          Status: Patch Available  (was: Open)

+1 on patch (minor text issue that I can correct on commit).  Passing by hadoopqa.
                
> Add a clock skew warning threshold
> ----------------------------------
>
>                 Key: HBASE-5770
>                 URL: https://issues.apache.org/jira/browse/HBASE-5770
>             Project: HBase
>          Issue Type: Improvement
>          Components: master, regionserver
>            Reporter: Ian Varley
>            Assignee: Ian Varley
>            Priority: Minor
>         Attachments: HBASE_5770_v1.patch
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> There's currently an exception thrown by the master when a region server attempts to
start up with clock skew greater than some configured amount (defaulting to 30 seconds). However,
it'd be nice to get some warnings logged at a value that isn't severe enough to warrant killing
the RS, but still represents significant skew that could affect correctness. Will attach a
simple patch to add this as a setting.

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