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Posted to issues@hbase.apache.org by "ramkrishna.s.vasudevan (Created) (JIRA)" <ji...@apache.org> on 2011/10/05 11:09:34 UTC
[jira] [Created] (HBASE-4539) OpenedRegionHandler racing with
itself in ServerShutDownhandler flow leading to HMaster abort
OpenedRegionHandler racing with itself in ServerShutDownhandler flow leading to HMaster abort
---------------------------------------------------------------------------------------------
Key: HBASE-4539
URL: https://issues.apache.org/jira/browse/HBASE-4539
Project: HBase
Issue Type: Bug
Reporter: ramkrishna.s.vasudevan
Assignee: ramkrishna.s.vasudevan
Steps to reproduce
==================
-> Region R1 is being opened in RS1.
->After processing the znode to OPENED RS1 goes down.
->Now before the OpenedRegionHandler executor deletes the znode if ServerShutDownHandler tries to assign the region to RS2, RS2 transits the node to OPENED and this OpenedRegionHandler executor deletes the znode.
->Now if the first OpenedRegionHandler tries deleting the znode it throws NoNode Exception and causes the HMaster to abort.
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[jira] [Commented] (HBASE-4539) OpenedRegionHandler racing with
itself in ServerShutDownhandler flow leading to HMaster abort
Posted by "Hudson (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13123657#comment-13123657 ]
Hudson commented on HBASE-4539:
-------------------------------
Integrated in HBase-0.92 #54 (See [https://builds.apache.org/job/HBase-0.92/54/])
HBASE-4540 OpenedRegionHandler is not enforcing atomicity of the operation it is performing. Also addresses HBASE-4539. (Ram)
ramkrishna :
Files :
* /hbase/branches/0.92/CHANGES.txt
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/master/handler/OpenedRegionHandler.java
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKAssign.java
* /hbase/branches/0.92/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java
* /hbase/branches/0.92/src/test/java/org/apache/hadoop/hbase/master/TestOpenedRegionHandler.java
> OpenedRegionHandler racing with itself in ServerShutDownhandler flow leading to HMaster abort
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-4539
> URL: https://issues.apache.org/jira/browse/HBASE-4539
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
>
> Steps to reproduce
> ==================
> -> Region R1 is being opened in RS1.
> ->After processing the znode to OPENED RS1 goes down.
> ->Now before the OpenedRegionHandler executor deletes the znode if ServerShutDownHandler tries to assign the region to RS2, RS2 transits the node to OPENED and this OpenedRegionHandler executor deletes the znode.
> ->Now if the first OpenedRegionHandler tries deleting the znode it throws NoNode Exception and causes the HMaster to abort.
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[jira] [Updated] (HBASE-4539) OpenedRegionHandler racing with
itself in ServerShutDownhandler flow leading to HMaster abort
Posted by "ramkrishna.s.vasudevan (Updated) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ramkrishna.s.vasudevan updated HBASE-4539:
------------------------------------------
Fix Version/s: 0.92.0
> OpenedRegionHandler racing with itself in ServerShutDownhandler flow leading to HMaster abort
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-4539
> URL: https://issues.apache.org/jira/browse/HBASE-4539
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
> Fix For: 0.92.0
>
>
> Steps to reproduce
> ==================
> -> Region R1 is being opened in RS1.
> ->After processing the znode to OPENED RS1 goes down.
> ->Now before the OpenedRegionHandler executor deletes the znode if ServerShutDownHandler tries to assign the region to RS2, RS2 transits the node to OPENED and this OpenedRegionHandler executor deletes the znode.
> ->Now if the first OpenedRegionHandler tries deleting the znode it throws NoNode Exception and causes the HMaster to abort.
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[jira] [Commented] (HBASE-4539) OpenedRegionHandler racing with
itself in ServerShutDownhandler flow leading to HMaster abort
Posted by "Hudson (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13123671#comment-13123671 ]
Hudson commented on HBASE-4539:
-------------------------------
Integrated in HBase-TRUNK #2311 (See [https://builds.apache.org/job/HBase-TRUNK/2311/])
HBASE-4540 OpenedRegionHandler is not enforcing atomicity of the operation it is performing . Also fixes HBASE-4539 (ram)
ramkrishna :
Files :
* /hbase/trunk/CHANGES.txt
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/AssignmentManager.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/master/handler/OpenedRegionHandler.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKAssign.java
* /hbase/trunk/src/main/java/org/apache/hadoop/hbase/zookeeper/ZKUtil.java
* /hbase/trunk/src/test/java/org/apache/hadoop/hbase/master/TestOpenedRegionHandler.java
> OpenedRegionHandler racing with itself in ServerShutDownhandler flow leading to HMaster abort
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-4539
> URL: https://issues.apache.org/jira/browse/HBASE-4539
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
>
> Steps to reproduce
> ==================
> -> Region R1 is being opened in RS1.
> ->After processing the znode to OPENED RS1 goes down.
> ->Now before the OpenedRegionHandler executor deletes the znode if ServerShutDownHandler tries to assign the region to RS2, RS2 transits the node to OPENED and this OpenedRegionHandler executor deletes the znode.
> ->Now if the first OpenedRegionHandler tries deleting the znode it throws NoNode Exception and causes the HMaster to abort.
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[jira] [Resolved] (HBASE-4539) OpenedRegionHandler racing with
itself in ServerShutDownhandler flow leading to HMaster abort
Posted by "ramkrishna.s.vasudevan (Resolved) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
ramkrishna.s.vasudevan resolved HBASE-4539.
-------------------------------------------
Resolution: Fixed
Fixed as part of HBASE-4540
> OpenedRegionHandler racing with itself in ServerShutDownhandler flow leading to HMaster abort
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-4539
> URL: https://issues.apache.org/jira/browse/HBASE-4539
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
>
> Steps to reproduce
> ==================
> -> Region R1 is being opened in RS1.
> ->After processing the znode to OPENED RS1 goes down.
> ->Now before the OpenedRegionHandler executor deletes the znode if ServerShutDownHandler tries to assign the region to RS2, RS2 transits the node to OPENED and this OpenedRegionHandler executor deletes the znode.
> ->Now if the first OpenedRegionHandler tries deleting the znode it throws NoNode Exception and causes the HMaster to abort.
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[jira] [Commented] (HBASE-4539) OpenedRegionHandler racing with
itself in ServerShutDownhandler flow leading to HMaster abort
Posted by "stack (Commented) (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4539?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13121046#comment-13121046 ]
stack commented on HBASE-4539:
------------------------------
Sounds definietly possible.
> OpenedRegionHandler racing with itself in ServerShutDownhandler flow leading to HMaster abort
> ---------------------------------------------------------------------------------------------
>
> Key: HBASE-4539
> URL: https://issues.apache.org/jira/browse/HBASE-4539
> Project: HBase
> Issue Type: Bug
> Reporter: ramkrishna.s.vasudevan
> Assignee: ramkrishna.s.vasudevan
>
> Steps to reproduce
> ==================
> -> Region R1 is being opened in RS1.
> ->After processing the znode to OPENED RS1 goes down.
> ->Now before the OpenedRegionHandler executor deletes the znode if ServerShutDownHandler tries to assign the region to RS2, RS2 transits the node to OPENED and this OpenedRegionHandler executor deletes the znode.
> ->Now if the first OpenedRegionHandler tries deleting the znode it throws NoNode Exception and causes the HMaster to abort.
--
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