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From "Laxmidhar Mishra (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (GIRAPH-609) More information on runtime exceptions for Callables
Date Mon, 25 May 2015 12:39:17 GMT

    [ https://issues.apache.org/jira/browse/GIRAPH-609?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14558210#comment-14558210
] 

Laxmidhar Mishra commented on GIRAPH-609:
-----------------------------------------

How to resolve this...i am new to Giraph ..I am facing same problem..how to run this Patch
file..can anyone help me
?????


> More information on runtime exceptions for Callables
> ----------------------------------------------------
>
>                 Key: GIRAPH-609
>                 URL: https://issues.apache.org/jira/browse/GIRAPH-609
>             Project: Giraph
>          Issue Type: Bug
>            Reporter: Avery Ching
>            Assignee: Avery Ching
>         Attachments: GIRAPH-609.patch
>
>
> We ocassionally see errors in user code such as 
> java.lang.IllegalStateException: run: Caught an unrecoverable exception waitFor: ExecutionException
occurred while waiting for org.apache.giraph.utils.ProgressableUtils$FutureWaitable@7215f9e4
at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:102) at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:632)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:307) at org.apache.hadoop.mapred.Child.main(Child.java:171)
Caused by: java.lang.IllegalStateException: waitFor: ExecutionException occurred while waiting
for org.apache.giraph.utils.ProgressableUtils$FutureWaitable@7215f9e4 at org.apache.giraph.utils.ProgressableUtils.waitFor(ProgressableUtils.java:145)
at org.apache.giraph.utils.ProgressableUtils.waitForever(ProgressableUtils.java:105) at org.apache.giraph.utils.ProgressableUtils.getFutureResult(ProgressableUtils.java:67)
at org.apache.giraph.graph.GraphTaskManager.processGraphPartitions(GraphTaskManager.java:738)
at org.apache.giraph.graph.GraphTaskManager.execute(GraphTaskManager.java:267) at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:92)
... 3 more Caused by: java.util.concurrent.ExecutionException: java.lang.ArrayIndexOutOfBoundsException
at java.util.concurrent.FutureTask$Sync.innerGet(FutureTask.java:262) at java.util.concurrent.FutureTask.get(FutureTask.java:119)
at org.apache.giraph.utils.ProgressableUtils$FutureWaitable.waitFor(ProgressableUtils.java:232)
at org.apache.giraph.utils.ProgressableUtils.waitFor(ProgressableUtils.java:137) ... 8 more
Caused by: java.lang.ArrayIndexOutOfBoundsException ,Job killed
> But it doesn't provide a lot of information about the actual stack trace in the user
land code of the callable.  We can wrap the invocation of the Callable#run() to get access
to this stack, which can be very helpful for debugging user code.



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