Hi List,
I'm about to get started with Giraph and have a few of questions:
when running the Pagrank example with
hadoop jar giraph-0.70-jar-with-dependencies.jar
org.apache.giraph.benchmark.PageRankBenchmark -e 1 -s 3 -v -V 500000 -w 10
this finishes but I find the following in one worker's logs:
*** Worker:
2011-12-23 15:36:09,468 ERROR org.apache.zookeeper.ClientCnxn: Error while
calling watcher
java.lang.RuntimeException:
org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode =
ConnectionLoss for /_hadoopBsp/job_201112231316_0010/_masterJobState
at org.apache.giraph.graph.BspService.getJobState(BspService.java:564)
at
org.apache.giraph.graph.BspServiceWorker.processEvent(BspServiceWorker.java:1414)
at org.apache.giraph.graph.BspService.process(BspService.java:1017)
at
org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:530)
at org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:506)
Caused by: org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for
/_hadoopBsp/job_201112231316_0010/_masterJobState
at org.apache.zookeeper.KeeperException.create(KeeperException.java:90)
at org.apache.zookeeper.KeeperException.create(KeeperException.java:42)
at org.apache.zookeeper.ZooKeeper.create(ZooKeeper.java:637)
at org.apache.giraph.zk.ZooKeeperExt.createExt(ZooKeeperExt.java:99)
at org.apache.giraph.graph.BspService.getJobState(BspService.java:555)
... 4 more
*** The Master says:
2011-12-23 15:45:40,564 WARN org.apache.giraph.zk.ZooKeeperManager:
onlineZooKeeperServers: Got ConnectException
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:525)
at
org.apache.giraph.zk.ZooKeeperManager.onlineZooKeeperServers(ZooKeeperManager.java:624)
at org.apache.giraph.graph.GraphMapper.setup(GraphMapper.java:408)
at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:630)
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:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:253)
Also, when I'm trying to run my own Job I see the following. All firewalls etc.
should be shutdown.
*** Master (node09.de):
2011-12-23 15:57:47,140 INFO org.apache.giraph.zk.ZooKeeperManager:
onlineZooKeeperServers: Connect attempt 0 of 10 max trying to connect to
node09.de:22181 with poll msecs = 3000
2011-12-23 15:57:47,143 WARN org.apache.giraph.zk.ZooKeeperManager:
onlineZooKeeperServers: Got ConnectException
java.net.ConnectException: Connection refused
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:333)
at java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:195)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:182)
at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:366)
at java.net.Socket.connect(Socket.java:525)
at
org.apache.giraph.zk.ZooKeeperManager.onlineZooKeeperServers(ZooKeeperManager.java:624)
at org.apache.giraph.graph.GraphMapper.setup(GraphMapper.java:409)
at org.apache.giraph.graph.GraphMapper.run(GraphMapper.java:630)
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:396)
at
org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1059)
at org.apache.hadoop.mapred.Child.main(Child.java:253)
Thanks again.
Christoph
