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From "stack (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HBASE-14907) NPE of MobUtils.hasMobColumns in Build failed in Jenkins: HBase-Trunk_matrix » latest1.8,Hadoop #513
Date Fri, 04 Dec 2015 18:54:11 GMT

     [ https://issues.apache.org/jira/browse/HBASE-14907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

stack updated HBASE-14907:
--------------------------
       Resolution: Fixed
     Hadoop Flags: Reviewed
    Fix Version/s: 2.0.0
           Status: Resolved  (was: Patch Available)

Pushed to master. Thanks for taking the time to look into the test failure [~jingcheng.du@intel.com]

> NPE of MobUtils.hasMobColumns in Build failed in Jenkins: HBase-Trunk_matrix » latest1.8,Hadoop
#513
> ----------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-14907
>                 URL: https://issues.apache.org/jira/browse/HBASE-14907
>             Project: HBase
>          Issue Type: Bug
>          Components: mob
>            Reporter: Jingcheng Du
>            Assignee: Jingcheng Du
>             Fix For: 2.0.0
>
>         Attachments: HBASE-14907-V2.patch, HBASE-14907.patch
>
>
> NPE is thrown when rollback the failures of table creation.
> 1. Table is being created, get issues when creating fs layout.
> 2. Rollback this creation and trying to delete the data from fs. It tries to delete the
mob dir and needs to ask HMaster about the HTableDescriptor, and at that time the table dir
had been deleted and no HTableDescriptor can be found.
> The exception looks like:
> {noformat}
> java.lang.NullPointerException
> 	at org.apache.hadoop.hbase.mob.MobUtils.hasMobColumns(MobUtils.java:851)
> 	at org.apache.hadoop.hbase.master.procedure.DeleteTableProcedure.deleteFromFs(DeleteTableProcedure.java:350)
> 	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.rollbackState(CreateTableProcedure.java:167)
> 	at org.apache.hadoop.hbase.master.procedure.CreateTableProcedure.rollbackState(CreateTableProcedure.java:57)
> 	at org.apache.hadoop.hbase.procedure2.StateMachineProcedure.rollback(StateMachineProcedure.java:134)
> 	at org.apache.hadoop.hbase.procedure2.Procedure.doRollback(Procedure.java:467)
> 	at org.apache.hadoop.hbase.procedure2.ProcedureExecutor.executeRollback(ProcedureExecut
> {noformat}
> In this patch, it directly checks if the mob directory is existing instead of checking
the HTableDescriptor.



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