[ 
https://issues.apache.org/jira/browse/HBASE-6748?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Ted Yu updated HBASE-6748:
--------------------------

    Description: 
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}

  was:
You can ealily understand the problem from the below logs:
[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

       Priority: Critical  (was: Major)
    
> 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
>
> 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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