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https://issues.apache.org/jira/browse/HBASE-24506?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17127958#comment-17127958
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Hudson commented on HBASE-24506:
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Results for branch branch-2.3
        [build #127 on 
builds.a.o|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.3/127/]: 
(/) *{color:green}+1 overall{color}*
----
details (if available):

(/) {color:green}+1 general checks{color}
-- For more information [see general 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.3/127/General_20Nightly_20Build_20Report/]




(/) {color:green}+1 jdk8 hadoop2 checks{color}
-- For more information [see jdk8 (hadoop2) 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.3/127/JDK8_20Nightly_20Build_20Report_20_28Hadoop2_29/]


(/) {color:green}+1 jdk8 hadoop3 checks{color}
-- For more information [see jdk8 (hadoop3) 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.3/127/JDK8_20Nightly_20Build_20Report_20_28Hadoop3_29/]


(/) {color:green}+1 jdk11 hadoop3 checks{color}
-- For more information [see jdk11 
report|https://builds.apache.org/job/HBase%20Nightly/job/branch-2.3/127/JDK11_20Nightly_20Build_20Report_20_28Hadoop3_29/]


(/) {color:green}+1 source release artifact{color}
-- See build output for details.


(/) {color:green}+1 client integration test{color}


> async client deadlock
> ---------------------
>
>                 Key: HBASE-24506
>                 URL: https://issues.apache.org/jira/browse/HBASE-24506
>             Project: HBase
>          Issue Type: Bug
>          Components: asyncclient
>    Affects Versions: 3.0.0-alpha-1, 2.3.0, 2.2.4, 2.4.0, 2.2.5
>            Reporter: Whitney Jackson
>            Assignee: Duo Zhang
>            Priority: Blocker
>             Fix For: 3.0.0-alpha-1, 2.3.0, 2.2.6
>
>
> I ran into an issue where one instance in a cluster of application servers 
> backed by HBase stopped processing requests. Looking at a thread dump, it 
> seems HBase client threads are deadlocked:
> https://pastebin.com/raw/B3FJL1Ag
> The deadlock seemed to happen at the same time that a region server was 
> abruptly stopped (the physical server was restarted unexpectedly).
> I'm using the hbase async API. The hbase client version is 2.2.4. The server 
> is running 2.2.4 as well.



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