Mailing-List: contact yarn-issues-help@hadoop.apache.org; run by ezmlm
Precedence: bulk
Date: Fri, 17 Feb 2017 19:13:42 +0000 (UTC)
From: "Jian He (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.13043812.1487292244000.112578.1487358822021@Atlassian.JIRA>
In-Reply-To: <JIRA.13043812.1487292244000@Atlassian.JIRA>
References: <JIRA.13043812.1487292244000@Atlassian.JIRA> <JIRA.13043812.1487292244130@jira-lw-us.apache.org>
Subject: [jira] [Updated] (YARN-6206) RequestHedgingRMFailoverProvider may
 have concurrency issues when accessing the same request object
MIME-Version: 1.0
Content-Type: text/plain; charset=utf-8
Content-Transfer-Encoding: 7bit
archived-at: Fri, 17 Feb 2017 19:13:49 -0000


     [ https://issues.apache.org/jira/browse/YARN-6206?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Jian He updated YARN-6206:
--------------------------
    Attachment: YARN-6206.2.patch

> RequestHedgingRMFailoverProvider may have concurrency issues when accessing the same request object
> ---------------------------------------------------------------------------------------------------
>
>                 Key: YARN-6206
>                 URL: https://issues.apache.org/jira/browse/YARN-6206
>             Project: Hadoop YARN
>          Issue Type: Bug
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-6206.1.patch, YARN-6206.2.patch
>
>
> Here, since multiple threads are accessing the same request object - 'args', and the request protobuf implementation is not synchronized. That caused errors like below: 
> {code}
>        Callable<Object> c = new Callable<Object>() {
>             @Override
>             public Object call() throws Exception {
>               return method.invoke(pInfo.proxy, args);
>             }
>           };
> {code}
> {code}
> java.lang.ArrayIndexOutOfBoundsException: 1
> at java.util.ArrayList.elementData(ArrayList.java:418)
> at java.util.ArrayList.get(ArrayList.java:431)
> at com.google.protobuf.LazyStringArrayList.getByteString(LazyStringArrayList.java:157)
> at com.google.protobuf.UnmodifiableLazyStringList.getByteString(UnmodifiableLazyStringList.java:66)
> at org.apache.hadoop.yarn.proto.YarnServiceProtos$GetApplicationsRequestProto.getSerializedSize(YarnServiceProtos.java:17070)
> at com.google.protobuf.AbstractMessageLite.writeDelimitedTo(AbstractMessageLite.java:84)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$RpcMessageWithHeader.write(ProtobufRpcEngine.java:356)
> at org.apache.hadoop.ipc.Client$Connection.sendRpcRequest(Client.java:1059)
> at org.apache.hadoop.ipc.Client.call(Client.java:1457)
> at org.apache.hadoop.ipc.Client.call(Client.java:1398)
> at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:233)
> at com.sun.proxy.$Proxy17.getApplications(Unknown Source)
> at org.apache.hadoop.yarn.api.impl.pb.client.ApplicationClientProtocolPBClientImpl.getApplications(ApplicationClientProtocolPBClientImpl.java:251)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:282)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:194)
> at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:176)
> at com.sun.proxy.$Proxy18.getApplications(Unknown Source)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43){code}


--
This message was sent by Atlassian JIRA
(v6.3.15#6346)

---------------------------------------------------------------------
To unsubscribe, e-mail: yarn-issues-unsubscribe@hadoop.apache.org
For additional commands, e-mail: yarn-issues-help@hadoop.apache.org