hadoop-common-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Vinod K V (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-5375) NPE in tracker expiry thread.
Date Mon, 02 Mar 2009 11:28:12 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-5375?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12677961#action_12677961
] 

Vinod K V commented on HADOOP-5375:
-----------------------------------

A quick look at the code suggests that the problem is with the following in JobTracker.java
+3210 in lostTracker() method:
{code}
        TaskInProgress tip = taskidToTIPMap.get(taskId);
        JobInProgress job = tip.getJob();
{code}

If the job is completed/removed from the memory, this would result in an NPE. Not sure if
there are any more such places.

> NPE in tracker expiry thread.
> -----------------------------
>
>                 Key: HADOOP-5375
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5375
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: mapred
>    Affects Versions: 0.20.0
>            Reporter: Vinod K V
>
> I see NullPointerExceptions in Task Expiry thread of the JobTracker. Exception log in
JT:
> {code}
> 2009-02-28 07:22:51,392 ERROR org.apache.hadoop.mapred.JobTracker: Tracker Expiry Thread
got exception: java.lang.NullPointerException
> {code}

-- 
This message is automatically generated by JIRA.
-
You can reply to this email to add a comment to the issue online.


Mime
View raw message