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https://issues.apache.org/jira/browse/HBASE-11685?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15971057#comment-15971057
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Hadoop QA commented on HBASE-11685:
-----------------------------------

| (x) *{color:red}-1 overall{color}* |
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|| Vote || Subsystem || Runtime || Comment ||
| {color:blue}0{color} | {color:blue} reexec {color} | {color:blue} 0m 0s 
{color} | {color:blue} Docker mode activated. {color} |
| {color:blue}0{color} | {color:blue} patch {color} | {color:blue} 0m 6s 
{color} | {color:blue} The patch file was not named according to hbase's naming 
conventions. Please see 
https://yetus.apache.org/documentation/0.3.0/precommit-patchnames for 
instructions. {color} |
| {color:red}-1{color} | {color:red} patch {color} | {color:red} 0m 10s {color} 
| {color:red} HBASE-11685 does not apply to master. Rebase required? Wrong 
Branch? See https://yetus.apache.org/documentation/0.3.0/precommit-patchnames 
for help. {color} |
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|| Subsystem || Report/Notes ||
| JIRA Patch URL | 
https://issues.apache.org/jira/secure/attachment/12661161/HBASE-11685-trunk-v6.diff
 |
| JIRA Issue | HBASE-11685 |
| Console output | 
https://builds.apache.org/job/PreCommit-HBASE-Build/6465/console |
| Powered by | Apache Yetus 0.3.0   http://yetus.apache.org |


This message was automatically generated.



> Incr/decr on the reference count of HConnectionImplementation need be atomic 
> -----------------------------------------------------------------------------
>
>                 Key: HBASE-11685
>                 URL: https://issues.apache.org/jira/browse/HBASE-11685
>             Project: HBase
>          Issue Type: Bug
>          Components: Client
>            Reporter: Liu Shaohui
>            Assignee: Liu Shaohui
>            Priority: Minor
>             Fix For: 2.0.0
>
>         Attachments: HBASE-11685-trunk-v1.diff, HBASE-11685-trunk-v2.diff, 
> HBASE-11685-trunk-v3.diff, HBASE-11685-trunk-v4.diff, 
> HBASE-11685-trunk-v5.diff, HBASE-11685-trunk-v6.diff
>
>
> Currently, the incr/decr operation on the ref count of 
> HConnectionImplementation are not atomic. This may cause that the ref count 
> always be larger than 0 and  the connection never be closed.
> {code}
>     /**
>      * Increment this client's reference count.
>      */
>     void incCount() {
>       ++refCount;
>     }
>     /**
>      * Decrement this client's reference count.
>      */
>     void decCount() {
>       if (refCount > 0) {
>         --refCount;
>       }
>     }
> {code}



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