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Posted to issues@hbase.apache.org by "stack (JIRA)" <ji...@apache.org> on 2011/07/07 07:49:16 UTC
[jira] [Created] (HBASE-4073) Don't open a region we already have
opened!
Don't open a region we already have opened!
-------------------------------------------
Key: HBASE-4073
URL: https://issues.apache.org/jira/browse/HBASE-4073
Project: HBase
Issue Type: Bug
Reporter: stack
Priority: Critical
Fix For: 0.92.0
See this thread: http://search-hadoop.com/?q=Errors+after+major+compaction&fc_project=HBase
In it, Eran has snippets from a log that show us being asked open a region we already have opened.
We need to make sure that the root issue is addressed -- the races around assignment and its timeouts -- and then after that do something like a check if we already have region open before we queue an open (we can't return message to the master from down inside the regionserver event handlers).
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[jira] [Resolved] (HBASE-4073) Don't open a region we already have
opened!
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
stack resolved HBASE-4073.
--------------------------
Resolution: Invalid
HBASE-4083 added the check I want including handling of case where region already open when we ask to open it.
> Don't open a region we already have opened!
> -------------------------------------------
>
> Key: HBASE-4073
> URL: https://issues.apache.org/jira/browse/HBASE-4073
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Priority: Critical
> Fix For: 0.92.0
>
>
> See this thread: http://search-hadoop.com/?q=Errors+after+major+compaction&fc_project=HBase
> In it, Eran has snippets from a log that show us being asked open a region we already have opened.
> We need to make sure that the root issue is addressed -- the races around assignment and its timeouts -- and then after that do something like a check if we already have region open before we queue an open (we can't return message to the master from down inside the regionserver event handlers).
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[jira] [Commented] (HBASE-4073) Don't open a region we already have
opened!
Posted by "stack (JIRA)" <ji...@apache.org>.
[ https://issues.apache.org/jira/browse/HBASE-4073?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13071517#comment-13071517 ]
stack commented on HBASE-4073:
------------------------------
I see we have check if a region is in transition on the current regionserver but we should also check if its already open on this server before queuing a new open executor (I seem to recall reviewing a patch lately that added this but can't think what it was)
> Don't open a region we already have opened!
> -------------------------------------------
>
> Key: HBASE-4073
> URL: https://issues.apache.org/jira/browse/HBASE-4073
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Priority: Critical
> Fix For: 0.92.0
>
>
> See this thread: http://search-hadoop.com/?q=Errors+after+major+compaction&fc_project=HBase
> In it, Eran has snippets from a log that show us being asked open a region we already have opened.
> We need to make sure that the root issue is addressed -- the races around assignment and its timeouts -- and then after that do something like a check if we already have region open before we queue an open (we can't return message to the master from down inside the regionserver event handlers).
--
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