hadoop-common-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Leting Wu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8397) NPE thrown when IPC layer gets an EOF reading a response
Date Fri, 29 Jun 2012 23:26:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8397?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13404313#comment-13404313
] 

Leting Wu commented on HADOOP-8397:
-----------------------------------

Is this related with only 2.0.0?
I am using 1.0.3 and when I tried to run a mahout example, I ran into a similar error:
{noformat}
java.lang.NullPointerException
	at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:852)
	at org.apache.hadoop.ipc.Client$Connection.run(Client.java:781)
{noformat}
                
> NPE thrown when IPC layer gets an EOF reading a response
> --------------------------------------------------------
>
>                 Key: HADOOP-8397
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8397
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: ipc
>    Affects Versions: 2.0.0-alpha, 3.0.0
>            Reporter: Todd Lipcon
>            Assignee: Vinay
>            Priority: Critical
>         Attachments: HADOOP-8397.patch
>
>
> When making a call on an IPC connection where the other end has shut down, I see the
following exception:
> Caused by: java.lang.NullPointerException
>         at org.apache.hadoop.ipc.Client$Connection.receiveResponse(Client.java:852)
>         at org.apache.hadoop.ipc.Client$Connection.run(Client.java:781)
> from the lines:
> {code}
>         RpcResponseHeaderProto response = 
>             RpcResponseHeaderProto.parseDelimitedFrom(in);
>         int callId = response.getCallId();
> {code}
> This is because parseDelimitedFrom() returns null in the case that the next thing to
be read on the stream is an EOF.

--
This message is automatically generated by JIRA.
If you think it was sent incorrectly, please contact your JIRA administrators: https://issues.apache.org/jira/secure/ContactAdministrators!default.jspa
For more information on JIRA, see: http://www.atlassian.com/software/jira

        

Mime
View raw message