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From Wasim Mohammad <wasim....@gmail.com>
Subject Re: Shortest path Error
Date Thu, 14 Mar 2013 14:03:29 GMT
> Hi,
>    I have just started with apache giraph. While trying to run shortest
> path example.
>
>
> hadoop jar
> giraph-0.2-SNAPSHOT-for-hadoop-0.20.203.0-jar-with-dependencies.jar
> org.apache.giraph.GiraphRunner
> org.apache.giraph.examples.ConnectedComponentsVertex -if
> org.apache.giraph.io.JsonBase64VertexOutputFormat -ip
> /user/bageera/shortestPathsInputGraph/  -of
> org.apache.giraph.io.JsonBase64VertexOutputFormat -op SPOG13 0 -w 3
>
>
>   I am getting the following error at master node.
>
> java.lang.Throwable: Child Error
> 	at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:271)
> Caused by: java.io.IOException: Task process exit with nonzero status of 1.
> 	at org.apache.hadoop.mapred.TaskRunner.run(TaskRunner.java:258)
>
>
>
> *syslog logs*
>
> askTracker/bageera/jobcache/job_201303141821_0004/attempt_201303141821_0004_m_000000_0/work
> 2013-03-14 18:40:49,926 INFO org.apache.zookeeper.ZooKeeper: Initiating client connection,
connectString=Nintendo:22181 sessionTimeout=60000 watcher=org.apache.giraph.graph.BspServiceMaster@1a0fba0
> 2013-03-14 18:40:49,935 INFO org.apache.zookeeper.ClientCnxn: Opening socket connection
to server Nintendo/10.129.30.126:22181
> 2013-03-14 18:40:49,936 INFO org.apache.zookeeper.ClientCnxn: Socket connection established
to Nintendo/10.129.30.126:22181, initiating session
> 2013-03-14 18:40:50,001 INFO org.apache.zookeeper.ClientCnxn: Session establishment complete
on server Nintendo/10.129.30.126:22181, sessionid = 0x13d690633dc0000, negotiated timeout
= 600000
> 2013-03-14 18:40:50,003 INFO org.apache.giraph.graph.BspService: process: Asynchronous
connection complete.
> 2013-03-14 18:40:50,007 INFO org.apache.giraph.graph.GraphMapper: map: No need to do
anything when not a worker
> 2013-03-14 18:40:50,007 INFO org.apache.giraph.graph.GraphMapper: cleanup: Starting for
MASTER_ZOOKEEPER_ONLY
> 2013-03-14 18:40:50,106 INFO org.apache.giraph.graph.BspServiceMaster: becomeMaster:
First child is '/_hadoopBsp/job_201303141821_0004/_masterElectionDir/Nintendo_00000000000'
and my bid is '/_hadoopBsp/job_201303141821_0004/_masterElectionDir/Nintendo_00000000000'
> 2013-03-14 18:40:50,163 INFO org.apache.giraph.comm.netty.NettyServer: NettyServer: Using
execution handler with 8 threads after requestFrameDecoder.
> 2013-03-14 18:40:50,169 INFO org.apache.giraph.graph.BspService: process: applicationAttemptChanged
signaled
> 2013-03-14 18:40:50,187 INFO org.apache.giraph.comm.netty.NettyServer: start: Started
server communication server: Nintendo/10.129.30.126:30000 with up to 16 threads on bind attempt
0 with sendBufferSize = 32768 receiveBufferSize = 524288 backlog = 2
> 2013-03-14 18:40:50,190 INFO org.apache.giraph.comm.netty.NettyClient: NettyClient: Using
execution handler with 8 threads after requestEncoder.
> 2013-03-14 18:40:50,193 INFO org.apache.giraph.graph.BspServiceMaster: becomeMaster:
I am now the master!
> 2013-03-14 18:40:50,218 INFO org.apache.giraph.graph.BspService: getApplicationAttempt:
Node /_hadoopBsp/job_201303141821_0004/_applicationAttemptsDir already exists!
> 2013-03-14 18:40:50,251 WARN org.apache.giraph.graph.BspService: process: Unknown and
unprocessed event (path=/_hadoopBsp/job_201303141821_0004/_applicationAttemptsDir/0/_superstepDir,
type=NodeChildrenChanged, state=SyncConnected)
> 2013-03-14 18:40:52,936 FATAL org.apache.giraph.graph.GraphMapper: uncaughtException:
OverrideExceptionHandler on thread org.apache.giraph.graph.MasterThread, msg = generateVertexInputSplits:
Got IOException, exiting...
> java.lang.IllegalStateException: generateVertexInputSplits: Got IOException
> 	at org.apache.giraph.graph.BspServiceMaster.generateInputSplits(BspServiceMaster.java:268)
> 	at org.apache.giraph.graph.BspServiceMaster.createInputSplits(BspServiceMaster.java:568)
> 	at org.apache.giraph.graph.BspServiceMaster.createVertexInputSplits(BspServiceMaster.java:633)
> 	at org.apache.giraph.graph.MasterThread.run(MasterThread.java:102)
> Caused by: java.io.IOException: No input paths specified in job
> 	at org.apache.giraph.io.GiraphFileInputFormat.listStatus(GiraphFileInputFormat.java:191)
> 	at org.apache.giraph.io.GiraphFileInputFormat.listVertexStatus(GiraphFileInputFormat.java:251)
> 	at org.apache.giraph.io.GiraphFileInputFormat.getVertexSplits(GiraphFileInputFormat.java:322)
> 	at org.apache.giraph.io.TextVertexInputFormat.getSplits(TextVertexInputFormat.java:61)
> 	at org.apache.giraph.graph.BspServiceMaster.generateInputSplits(BspServiceMaster.java:266)
> 	... 3 more
> 2013-03-14 18:40:52,937 INFO org.apache.giraph.zk.ZooKeeperManager: run: Shutdown hook
started.
> 2013-03-14 18:40:52,937 WARN org.apache.giraph.zk.ZooKeeperManager: onlineZooKeeperServers:
Forced a shutdown hook kill of the ZooKeeper process.
> 2013-03-14 18:40:53,255 INFO org.apache.giraph.zk.ZooKeeperManager: onlineZooKeeperServers:
ZooKeeper process exited with 143 (note that 143 typically means killed)
>
>
>
> This is the most common error people are getting but I am unable to find
> the solution.
> Plz help.
>
> Thanks,
> M.Vasimuddin
>
>
>

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