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From "Karthik Kambatla (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-1559) Race between ServerRMProxy and ClientRMProxy setting RMProxy#INSTANCE
Date Sat, 04 Jan 2014 01:19:50 GMT
Karthik Kambatla created YARN-1559:

             Summary: Race between ServerRMProxy and ClientRMProxy setting RMProxy#INSTANCE
                 Key: YARN-1559
                 URL: https://issues.apache.org/jira/browse/YARN-1559
             Project: Hadoop YARN
          Issue Type: Bug
          Components: resourcemanager
    Affects Versions: 2.4.0
            Reporter: Karthik Kambatla
            Assignee: Karthik Kambatla
            Priority: Blocker

RMProxy#INSTANCE is a non-final static field and both ServerRMProxy and ClientRMProxy set
it. This leads to races as witnessed on - YARN-1482.

Sample trace:
java.lang.IllegalArgumentException: RM does not support this client protocol
        at com.google.common.base.Preconditions.checkArgument(Preconditions.java:88)
        at org.apache.hadoop.yarn.client.ClientRMProxy.checkAllowedProtocols(ClientRMProxy.java:119)
        at org.apache.hadoop.yarn.client.ConfiguredRMFailoverProxyProvider.init(ConfiguredRMFailoverProxyProvider.java:58)
        at org.apache.hadoop.yarn.client.RMProxy.createRMFailoverProxyProvider(RMProxy.java:158)
        at org.apache.hadoop.yarn.client.RMProxy.createRMProxy(RMProxy.java:88)
        at org.apache.hadoop.yarn.server.api.ServerRMProxy.createRMProxy(ServerRMProxy.java:56)

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