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https://issues.apache.org/jira/browse/HBASE-7504?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13549436#comment-13549436
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Hadoop QA commented on HBASE-7504:
----------------------------------
{color:red}-1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12564139/7504-94.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/3960//console
This message is automatically generated.
> -ROOT- may be offline forever after FullGC of RS
> -------------------------------------------------
>
> Key: HBASE-7504
> URL: https://issues.apache.org/jira/browse/HBASE-7504
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.94.3
> Reporter: chunhui shen
> Assignee: chunhui shen
> Fix For: 0.96.0, 0.94.5
>
> Attachments: 7504-94.patch, 7504-trunk v1.patch, 7504-trunk v2.patch
>
>
> 1.FullGC happen on ROOT regionserver.
> 2.ZK session timeout, master expire the regionserver and submit to
> ServerShutdownHandler
> 3.Regionserver complete the FullGC
> 4.In the process of ServerShutdownHandler, verifyRootRegionLocation returns
> true
> 5.ServerShutdownHandler skip assigning ROOT region
> 6.Regionserver abort itself because it reveive YouAreDeadException after a
> regionserver report
> 7.ROOT is offline now, and won't be assigned any more unless we restart master
> Master Log:
> {code}
> 2012-10-31 19:51:39,043 DEBUG org.apache.hadoop.hbase.master.ServerManager:
> Added=dw88.kgb.sqa.cm4,60020,1351671478752 to dead servers, submitted
> shutdown handler to be executed, root=true, meta=false
> 2012-10-31 19:51:39,045 INFO
> org.apache.hadoop.hbase.master.handler.ServerShutdownHandler: Splitting logs
> for dw88.kgb.sqa.cm4,60020,1351671478752
> 2012-10-31 19:51:50,113 INFO
> org.apache.hadoop.hbase.master.handler.ServerShutdownHandler: Server
> dw88.kgb.sqa.cm4,60020,1351671478752 was carrying ROOT. Trying to assign.
> 2012-10-31 19:52:15,939 DEBUG org.apache.hadoop.hbase.master.ServerManager:
> Server REPORT rejected; currently processing
> dw88.kgb.sqa.cm4,60020,1351671478752 as dead server
> 2012-10-31 19:52:15,945 INFO
> org.apache.hadoop.hbase.master.handler.ServerShutdownHandler: Skipping log
> splitting for dw88.kgb.sqa.cm4,60020,1351671478752
> {code}
> No log of assigning ROOT
> Regionserver log:
> {code}
> 2012-10-31 19:52:15,923 WARN org.apache.hadoop.hbase.util.Sleeper: We slept
> 229128ms instead of 100000ms, this is likely due to a long garbage collecting
> pause and it's usually bad, see
> http://hbase.apache.org/book.html#trouble.rs.runtime.zkexpired
> {code}
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