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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-3749) We should make a copy of configuration when init MiniYARNCluster with multiple RMs
Date Thu, 04 Jun 2015 11:37:42 GMT

    [ https://issues.apache.org/jira/browse/YARN-3749?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14572596#comment-14572596
] 

Hudson commented on YARN-3749:
------------------------------

FAILURE: Integrated in Hadoop-Yarn-trunk-Java8 #218 (See [https://builds.apache.org/job/Hadoop-Yarn-trunk-Java8/218/])
YARN-3749. We should make a copy of configuration when init (xgong: rev 5766a04428f65bb008b5c451f6f09e61e1000300)
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/TestMiniYarnCluster.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/TestRMEmbeddedElector.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/ApplicationMasterService.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/conf/YarnConfiguration.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/HATestUtil.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestApplicationMasterServiceProtocolOnHA.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/ProtocolHATestBase.java
* hadoop-yarn-project/CHANGES.txt
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-common/src/test/java/org/apache/hadoop/yarn/conf/TestYarnConfiguration.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-tests/src/test/java/org/apache/hadoop/yarn/server/MiniYARNCluster.java
* hadoop-yarn-project/hadoop-yarn/hadoop-yarn-client/src/test/java/org/apache/hadoop/yarn/client/TestRMFailover.java


> We should make a copy of configuration when init MiniYARNCluster with multiple RMs
> ----------------------------------------------------------------------------------
>
>                 Key: YARN-3749
>                 URL: https://issues.apache.org/jira/browse/YARN-3749
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Chun Chen
>            Assignee: Chun Chen
>             Fix For: 2.8.0
>
>         Attachments: YARN-3749.2.patch, YARN-3749.3.patch, YARN-3749.4.patch, YARN-3749.5.patch,
YARN-3749.6.patch, YARN-3749.7.patch, YARN-3749.7.patch, YARN-3749.patch
>
>
> When I was trying to write a test case for YARN-2674, I found DS client trying to connect
to both rm1 and rm2 with the same address 0.0.0.0:18032 when RM failover. But I initially
set yarn.resourcemanager.address.rm1=0.0.0.0:18032, yarn.resourcemanager.address.rm2=0.0.0.0:28032
 After digging, I found it is in ClientRMService where the value of yarn.resourcemanager.address.rm2
changed to 0.0.0.0:18032. See the following code in ClientRMService:
> {code}
> clientBindAddress = conf.updateConnectAddr(YarnConfiguration.RM_BIND_HOST,
>                                                YarnConfiguration.RM_ADDRESS,
>                                                YarnConfiguration.DEFAULT_RM_ADDRESS,
>                                                server.getListenerAddress());
> {code}
> Since we use the same instance of configuration in rm1 and rm2 and init both RM before
we start both RM, we will change yarn.resourcemanager.ha.id to rm2 during init of rm2 and
yarn.resourcemanager.ha.id will become rm2 during starting of rm1.
> So I think it is safe to make a copy of configuration when init both of the rm.



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