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From Yingyi Bu <ying...@ics.uci.edu>
Subject Exception "Already has missing vertex on this worker"
Date Thu, 26 Sep 2013 03:16:21 GMT
Hi,

I got this exception when I ran a Giraph-1.0.0 PageRank job over a 60
machine cluster with 28GB input data.  But I got this exception:

java.lang.IllegalStateException: run: Caught an unrecoverable
exception resolveMutations: Already has missing vertex on this worker
for 20464109
	at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:102)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:763)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:369)
	at org.apache.hadoop.mapred.Child$4.run(Child.java:259)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:415)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
	at org.apache.hadoop.mapred.Child.main(Child.java:253)
Caused by: java.lang.IllegalStateException: resolveMutations: Already
has missing vertex on this worker for 20464109
	at org.apache.giraph.comm.netty.NettyWorkerServer.resolveMutations(NettyWorkerServer.java:184)
	at org.apache.giraph.comm.netty.NettyWorkerServer.prepareSuperstep(NettyWorkerServer.java:152)
	at org.apache.giraph.worker.BspServiceWorker.startSuperstep(BspServiceWorker.java:677)
	at org.apache.giraph.graph.GraphTaskManager.execute(GraphTaskManager.java:249)
	at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:92)
	... 7 more

Does anyone know what is the possible cause of this exception?

Thanks!

Yingyi

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