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From "stack (JIRA)" <j...@apache.org>
Subject [jira] Created: (HBASE-515) At least double default timeouts between regionserver and master
Date Fri, 14 Mar 2008 03:05:24 GMT
At least double default timeouts between regionserver and master 
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                 Key: HBASE-515
                 URL: https://issues.apache.org/jira/browse/HBASE-515
             Project: Hadoop HBase
          Issue Type: Improvement
    Affects Versions: 0.1.0, 0.2.0, 0.16.0
            Reporter: stack
            Priority: Blocker


501 added logging of how long we sleep at the end of the HRegionServer main run method before
we send heartback back to the master.  Last night during upload I saw this:

{code}
2008-03-13 00:03:50,884 WARN org.apache.hadoop.hbase.util.Sleeper: We slept ten times longer
than scheduled: 3000
{code}

Above log has since been improved but its saying that we slept > 30 seconds, the default
timeout on master/regionserver communications (When the lease expires, master starts giving
regions to someone else and when this regionserver reports in, its told to close all its regions).

Server was under load from other processes but still...upload rate was not that rabid.

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