[ 
https://issues.apache.org/jira/browse/YARN-2368?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14077616#comment-14077616
 ] 

Hadoop QA commented on YARN-2368:
---------------------------------

{color:red}-1 overall{color}.  Here are the results of testing the latest 
attachment 
  http://issues.apache.org/jira/secure/attachment/12658387/YARN-2368.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:green}+1 javac{color}.  The applied patch does not increase the 
total number of javac compiler warnings.

    {color:green}+1 javadoc{color}.  There were no new javadoc warning messages.

    {color:green}+1 eclipse:eclipse{color}.  The patch built with 
eclipse:eclipse.

    {color:green}+1 findbugs{color}.  The patch does not introduce any new 
Findbugs (version 2.0.3) warnings.

    {color:green}+1 release audit{color}.  The applied patch does not increase 
the total number of release audit warnings.

    {color:green}+1 core tests{color}.  The patch passed unit tests in 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager.

    {color:green}+1 contrib tests{color}.  The patch passed contrib unit tests.

Test results: 
https://builds.apache.org/job/PreCommit-YARN-Build/4471//testReport/
Console output: https://builds.apache.org/job/PreCommit-YARN-Build/4471//console

This message is automatically generated.

> ResourceManager failed when ZKRMStateStore tries to update znode data larger 
> than 1MB
> -------------------------------------------------------------------------------------
>
>                 Key: YARN-2368
>                 URL: https://issues.apache.org/jira/browse/YARN-2368
>             Project: Hadoop YARN
>          Issue Type: Bug
>          Components: resourcemanager
>    Affects Versions: 2.4.1
>            Reporter: Leitao Guo
>            Priority: Critical
>         Attachments: YARN-2368.patch
>
>
> Both ResouceManager throws out STATE_STORE_OP_FAILED events and failed 
> finally. ZooKeeper log shows that ZKRMStateStore tries to update a znode 
> larger than 1MB, which is the default configuration of ZooKeeper server and 
> client in 'jute.maxbuffer'.
> ResourceManager log shows as the following:
> ------------------------------------------------------------
> 2014-07-25 22:33:11,078 INFO 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore: 
> ZKRMStateStore Session connected
> 2014-07-25 22:33:11,078 INFO 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore: 
> ZKRMStateStore Session restored
> 2014-07-25 22:33:11,214 FATAL 
> org.apache.hadoop.yarn.server.resourcemanager.ResourceManager: Received a 
> org.apache.hadoop.yarn.server.resourcemanager.RMFatalEvent of type 
> STATE_STORE_OP_FAILED. Cause:
> org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode 
> = ConnectionLoss for 
> /rmstore/ZKRMStateRoot/RMAppRoot/application_1406264354826_1645/appattempt_1406264354826_1645_000001
>         at 
> org.apache.zookeeper.KeeperException.create(KeeperException.java:99)
>         at 
> org.apache.zookeeper.KeeperException.create(KeeperException.java:51)
>         at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1041)
>         at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:1069)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$8.run(ZKRMStateStore.java:926)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$8.run(ZKRMStateStore.java:923)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithCheck(ZKRMStateStore.java:973)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore$ZKAction.runWithRetries(ZKRMStateStore.java:992)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.existsWithRetries(ZKRMStateStore.java:923)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.ZKRMStateStore.updateApplicationAttemptStateInternal(ZKRMStateStore.java:620)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore.handleStoreEvent(RMStateStore.java:675)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:766)
>         at 
> org.apache.hadoop.yarn.server.resourcemanager.recovery.RMStateStore$ForwardingEventHandler.handle(RMStateStore.java:761)
>         at 
> org.apache.hadoop.yarn.event.AsyncDispatcher.dispatch(AsyncDispatcher.java:173)
>         at 
> org.apache.hadoop.yarn.event.AsyncDispatcher$1.run(AsyncDispatcher.java:106)
>         at java.lang.Thread.run(Thread.java:745)
> Meanwhile ZooKeeps logs as the following:
> ------------------------------------------------------------
> 2014-07-25 22:10:09,742 [myid:1] - WARN  
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@354] - Exception 
> causing close of session 0x247684586e70006 due to java.io.IOException: Len 
> error 1530747
> ... ...
> 2014-07-25 22:33:10,966 [myid:1] - WARN  
> [NIOServerCxn.Factory:0.0.0.0/0.0.0.0:2181:NIOServerCnxn@354] - Exception 
> causing close of session 0x247684586e70006 due to java.io.IOException: Len 
> error 1530747



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