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https://issues.apache.org/jira/browse/HBASE-1603?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12727817#action_12727817
]
stack commented on HBASE-1603:
------------------------------
Looks like we are making incorrect splits:
{code}
2009-07-06 21:29:00,591 [regionserver/208.76.44.141:60020.compactor] INFO
org.apache.hadoop.hbase.regionserver.CompactSplitThread: region split, META
updated, and report to master all successful. Old region=REGION => {NAME =>
'TestTable,\x00\x04\x05\x02\x01\x04\x09
\x09\x05\x03,1246915671694', STARTKEY =>
'\x00\x04\x05\x02\x01\x04\x09\x09\x05\x03', ENDKEY => '', ENCODED => 532846028,
OFFLINE => true, SPLIT => true, TABLE => {{NAME => 'TestTable', FAMILIES =>
[{NAME => 'info', COMPRESSION => 'NONE', VERSIONS => '3', TTL => '21
47483647', BLOCKSIZE => '65536', IN_MEMORY => 'false', BLOCKCACHE =>
'true'}]}}, new regions:
TestTable,\x00\x04\x05\x02\x01\x04\x09\x09\x05\x03,1246915729181,
TestTable,\x00\x03\x09\x02\x04\x09\x04\x08\x01\x04,1246915729181. Split took
11sec
{code}
It would seem we're making split with a key that is less than that of the
parent region (if the binary output can be trusted);
TestTable,\x00\x03\x09\x02\x04\x09\x04\x08\x01\x04,1246915729181 is <
TestTable,\x00\x04\x05\x02\x01\x04\x09\x09\x05\x03,1246915671694
@Andrew -- I'm looking for Andrew Lee issue...
> MR failed "RetriesExhaustedException: Trying to contact region server Some
> server for region TestTable..."
> ----------------------------------------------------------------------------------------------------------
>
> Key: HBASE-1603
> URL: https://issues.apache.org/jira/browse/HBASE-1603
> Project: Hadoop HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.20.0
>
>
> Here is the master. Region
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246462685358 was split at
> 16:11:42,865. My MR job failed at 18:12:26,462 with this:
> {code}
> 2009-07-01 18:12:26,462 WARN org.apache.hadoop.mapred.TaskTracker: Error
> running child
> org.apache.hadoop.hbase.client.RetriesExhaustedException: Trying to contact
> region server Some server for region TestTable,�,1246464670313, row '��
> ', but failed after 10 attempts.
> Exceptions:
> ...
> {code}
> Why after ten attempts did the client not find the region?
> {code}
> 2009-07-01 16:11:42,865 [IPC Server handler 2 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_SPLIT:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246462685358: Daughters;
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313,
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 1 of 3
> 2009-07-01 16:11:42,866 [IPC Server handler 2 on 60001] INFO
> org.apache.hadoop.hbase.master.RegionManager: Assigning region
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 to
> aa0-000-15.u.powerset.com,60020,1246461673026
> 2009-07-01 16:11:42,866 [IPC Server handler 2 on 60001] INFO
> org.apache.hadoop.hbase.master.RegionManager: Assigning region
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 to
> aa0-000-15.u.powerset.com,60020,1246461673026
> 2009-07-01 16:11:45,905 [IPC Server handler 8 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received
> MSG_REPORT_PROCESS_OPEN:
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 1 of 3
> 2009-07-01 16:11:45,905 [IPC Server handler 8 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_OPEN:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 2 of 3
> 2009-07-01 16:11:45,906 [IPC Server handler 8 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_OPEN:
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 3 of 3
> 2009-07-01 16:11:45,906 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 open on
> 208.76.44.142:60020
> 2009-07-01 16:11:45,906 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation: updating row
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 in region
> .META.,,1 with startcode 1246461673026 and server 208.76.44.142:60020
> 2009-07-01 16:11:45,908 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation:
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 open on
> 208.76.44.142:60020
> 2009-07-01 16:11:45,908 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation: updating row
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 in region
> .META.,,1 with startcode 1246461673026 and server 208.76.44.142:60020
> 2009-07-01 17:46:42,670 [IPC Server handler 0 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_SPLIT:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313: Daughters;
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246470379467,
> TestTable,\x00\x00\x08\x04\x05\x07\x02\x05\x04\x08,1246470379467 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 5 of 7
> {code}
> Here is over on the regionserver:
> {code}
> 2009-07-01 16:11:42,865 [IPC Server handler 2 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_SPLIT:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246462685358: Daughters;
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313,
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 1 of 3
> 2009-07-01 16:11:42,866 [IPC Server handler 2 on 60001] INFO
> org.apache.hadoop.hbase.master.RegionManager: Assigning region
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 to
> aa0-000-15.u.powerset.com,60020,1246461673026
> 2009-07-01 16:11:42,866 [IPC Server handler 2 on 60001] INFO
> org.apache.hadoop.hbase.master.RegionManager: Assigning region
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 to
> aa0-000-15.u.powerset.com,60020,1246461673026
> 2009-07-01 16:11:45,905 [IPC Server handler 8 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received
> MSG_REPORT_PROCESS_OPEN:
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 1 of 3
> 2009-07-01 16:11:45,905 [IPC Server handler 8 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_OPEN:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 2 of 3
> 2009-07-01 16:11:45,906 [IPC Server handler 8 on 60001] INFO
> org.apache.hadoop.hbase.master.ServerManager: Received MSG_REPORT_OPEN:
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 from
> aa0-000-15.u.powerset.com,60020,1246461673026; 3 of 3
> 2009-07-01 16:11:45,906 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation:
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 open on
> X.X.X.142:60020
> 2009-07-01 16:11:45,906 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation: updating row
> TestTable,\x00\x00\x06\x05\x01\x05\x07\x09\x08\x00,1246464670313 in region
> .META.,,1 with startcode 1246461673026 and server X.X.X4.142:60020
> 2009-07-01 16:11:45,908 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation:
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 open on
> X.X.X.142:60020
> 2009-07-01 16:11:45,908 [HMaster] INFO
> org.apache.hadoop.hbase.master.RegionServerOperation: updating row
> TestTable,\x00\x01\x01\x04\x04\x07\x02\x08\x08\x03,1246464670313 in region
> .META.,,1 with startcode 1246461673026 and server X.X.X.142:60020
> {code}
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