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https://issues.apache.org/jira/browse/HBASE-8259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13621404#comment-13621404
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Hadoop QA commented on HBASE-8259:
----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12576864/HBASE-8259-v0.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:red}-1 tests included{color}. The patch doesn't appear to include
any new or modified tests.
Please justify why no new tests are needed for this
patch.
Also please list what manual steps were performed to
verify this patch.
{color:red}-1 patch{color}. The patch command could not apply the patch.
Console output:
https://builds.apache.org/job/PreCommit-HBASE-Build/5118//console
This message is automatically generated.
> Snapshot backport in 0.94.6 breaks rolling restarts
> ---------------------------------------------------
>
> Key: HBASE-8259
> URL: https://issues.apache.org/jira/browse/HBASE-8259
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.6
> Reporter: Jean-Daniel Cryans
> Assignee: Matteo Bertozzi
> Priority: Blocker
> Fix For: 0.94.7
>
> Attachments: HBASE-8259-v0.patch
>
>
> [~aleksshulman] found with his nifty QA tools that 0.94.6 has an incompatible
> change due to HBASE-7360 (Snapshot 0.94 Backport) that breaks rolling
> restarts.
> RegionTransitionData.write() uses eventType.ordinal() that is the index in
> the enum and not the value specified in the enum definition. It means we
> can't add new states in the middle of the list. This can be fixed by moving
> C_M_SNAPSHOT_TABLE and C_M_RESTORE_SNAPSHOT at the end of the list. Trunk
> does the right thing already.
> Right now, RIT znodes created with 0.94.6 (or top of the branch) will use the
> wrong value for the event type. You will see things like:
> {noformat}
> 2013-04-03 14:57:25,197 DEBUG org.apache.hadoop.hbase.zookeeper.ZKAssign:
> regionserver:60020-0x13dd1e10dbd0004 Attempting to transition node
> 70236052/-ROOT- from M_ZK_REGION_OFFLINE to RS_ZK_REGION_OPENING
> 2013-04-03 14:57:25,201 WARN org.apache.hadoop.hbase.zookeeper.ZKAssign:
> regionserver:60020-0x13dd1e10dbd0004 Attempt to transition the unassigned
> node for 70236052 from M_ZK_REGION_OFFLINE to RS_ZK_REGION_OPENING failed,
> the node existed but was in the state M_SERVER_SHUTDOWN set by the server
> 192.168.1.112,60020,1365026237977
> 2013-04-03 14:57:25,201 WARN
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler: Failed
> transition from OFFLINE to OPENING for region=70236052
> 2013-04-03 14:57:25,201 WARN
> org.apache.hadoop.hbase.regionserver.handler.OpenRegionHandler: Region was
> hijacked? It no longer exists, encodedName=70236052
> {noformat}
> We should roll a 0.94.6.1 or 0.94.7 as soon this is fixed IMO.
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