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HBase, mail # user - Load balancer repeatedly close and open region in the same regionserver.


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RE: Load balancer repeatedly close and open region in the same regionserver.
Ramkrishna.S.Vasudevan 2012-07-17, 14:30
>From the logs I can see that though the server's are same their start code
is different.
Need to analyse the previous logs also.  Pls file a JIRA, if possible attach
the logs to that.  

Thanks Howard.

Regards
Ram

> -----Original Message-----
> From: Howard [mailto:[EMAIL PROTECTED]]
> Sent: Tuesday, July 17, 2012 7:32 PM
> To: [EMAIL PROTECTED]
> Subject: Re: Load balancer repeatedly close and open region in the same
> regionserver.
>
> *hi,Ted Yu,thanks for your reply:*
> the hbase and hadoop version is
> HBase Version0.94.0, r1332822Hadoop Version0.20.2-cdh3u1,
> rbdafb1dbffd0d5f2fbc6ee022e1c8df6500fd638
> the following is a detail log about the same region
> trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160e1b7
> e956,
> and it repeats again and again.:
> 2012-07-16 00:12:49,843 INFO org.apache.hadoop.hbase.master.HMaster:
> balance
> hri=trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160
> e1b7e956.,
> src=192.168.1.2,60020,1342017399608,
> dest=192.168.1.2,60020,1342002082592
> 2012-07-16 00:12:49,843 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Starting unassignment
> of
> region
> trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160e1b7
> e956.
> (offlining)
> 2012-07-16 00:12:49,843 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZKAssign:
> master:60000-0x4384d0a47f40068 Creating unassigned node for
> 93caf5147d40f5dd4625e160e1b7e956 in a CLOSING state
> 2012-07-16 00:12:49,845 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Sent CLOSE to
> 192.168.1.2,60020,1342017399608 for region
> trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160e1b7
> e956.
> 2012-07-16 00:12:50,555 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Handling
> transition=RS_ZK_REGION_CLOSED, server=192.168.1.2,60020,1342017399608,
> region=93caf5147d40f5dd4625e160e1b7e956
> 2012-07-16 00:12:50,555 DEBUG
> org.apache.hadoop.hbase.master.handler.ClosedRegionHandler: Handling
> CLOSED
> event for 93caf5147d40f5dd4625e160e1b7e956
> 2012-07-16 00:12:50,555 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Forcing OFFLINE;
> was=trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160
> e1b7e956.
> state=CLOSED, ts=1342368770556, server=192.168.1.2,60020,1342017399608
> 2012-07-16 00:12:50,555 DEBUG
> org.apache.hadoop.hbase.zookeeper.ZKAssign:
> master:60000-0x4384d0a47f40068 Creating (or updating) unassigned node
> for
> 93caf5147d40f5dd4625e160e1b7e956 with OFFLINE state
> 2012-07-16 00:12:50,558 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Handling
> transition=M_ZK_REGION_OFFLINE, server=10.75.18.34,60000,1342017369575,
> region=93caf5147d40f5dd4625e160e1b7e956
> 2012-07-16 00:12:50,558 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Found an existing
> plan
> for
> trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160e1b7
> e956.
> destination server is 192.168.1.2,60020,1342002082592
> 2012-07-16 00:12:50,558 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Using pre-existing
> plan
> for region
> trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160e1b7
> e956.;
> plan=hri=trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd462
> 5e160e1b7e956.,
> src=192.168.1.2,60020,1342017399608,
> dest=192.168.1.2,60020,1342002082592
> 2012-07-16 00:12:50,558 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Assigning region
> trackurl_status_list,zO6u4o8,1342291884831.93caf5147d40f5dd4625e160e1b7
> e956.
> to 192.168.1.2,60020,1342002082592
> 2012-07-16 00:12:50,574 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Handling
> transition=RS_ZK_REGION_OPENING,
> server=192.168.1.2,60020,1342017399608,
> region=93caf5147d40f5dd4625e160e1b7e956
> 2012-07-16 00:12:50,635 DEBUG
> org.apache.hadoop.hbase.master.AssignmentManager: Handling
> transition=RS_ZK_REGION_OPENING,
> server=192.168.1.2,60020,1342017399608,
> region=93caf5147d40f5dd4625e160e1b7e956
> 2012-07-16 00:12:50,639 DEBUG