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From "Jieshan Bean (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-6748) Endless recursive of deleteNode happened in SplitLogManager#DeleteAsyncCallback
Date Wed, 12 Sep 2012 03:09:07 GMT

    [ https://issues.apache.org/jira/browse/HBASE-6748?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13453666#comment-13453666
] 

Jieshan Bean commented on HBASE-6748:
-------------------------------------

Either. Both Master starts up and region server failure handling may trigger HLog splitting.

Yes, I think HMaster should abort when sessionTimeout happens.
                
> Endless recursive of deleteNode happened in SplitLogManager#DeleteAsyncCallback
> -------------------------------------------------------------------------------
>
>                 Key: HBASE-6748
>                 URL: https://issues.apache.org/jira/browse/HBASE-6748
>             Project: HBase
>          Issue Type: Bug
>          Components: master
>    Affects Versions: 0.96.0, 0.94.1
>            Reporter: Jieshan Bean
>            Priority: Critical
>             Fix For: 0.96.0, 0.94.3
>
>
> You can ealily understand the problem from the below logs:
> {code}
> [2012-09-01 11:41:02,062] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$CreateAsyncCallback 978] create rc =SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=3
> [2012-09-01 11:41:02,062] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$CreateAsyncCallback 978] create rc =SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=2
> [2012-09-01 11:41:02,063] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$CreateAsyncCallback 978] create rc =SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=1
> [2012-09-01 11:41:02,063] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$CreateAsyncCallback 978] create rc =SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=0
> [2012-09-01 11:41:02,063] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager 393] failed to create task node/hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
> [2012-09-01 11:41:02,063] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager 353] Error splitting /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
> [2012-09-01 11:41:02,063] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$DeleteAsyncCallback 1052] delete rc=SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=9223372036854775807
> [2012-09-01 11:41:02,064] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$DeleteAsyncCallback 1052] delete rc=SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=9223372036854775806
> [2012-09-01 11:41:02,064] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$DeleteAsyncCallback 1052] delete rc=SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=9223372036854775805
> [2012-09-01 11:41:02,064] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$DeleteAsyncCallback 1052] delete rc=SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=9223372036854775804
> [2012-09-01 11:41:02,065] [WARN ] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.hadoop.hbase.master.SplitLogManager$DeleteAsyncCallback 1052] delete rc=SESSIONEXPIRED
for /hbase/splitlog/hdfs%3A%2F%2Fxh01%3A9000%2Fhbase%2F.logs%2Fxh01%2C20020%2C1339552105088-splitting%2Fxh01%252C20020%252C1339552105088.1339557014846
remaining retries=9223372036854775803
> ...................
> [2012-09-01 11:41:03,307] [ERROR] [MASTER_SERVER_OPERATIONS-xh03,20000,1339549619270-1]
[org.apache.zookeeper.ClientCnxn 623] Caught unexpected throwable
> java.lang.StackOverflowError
> {code}

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