Hi Avery, Thanks for your quick answer. Just for your information. I was able to fix the second issue (running pagerank example). I believe it has been addressed in GIRAPH-442 (https://issues.apache.org/jira/browse/GIRAPH-442). What confuses me is that I don't know why this patch is not applied to the latest release (1.0.0).
Again, I appreciate your help. Best, Chuan On Mon, Jun 24, 2013 at 10:17 PM, Avery Ching <ach...@apache.org> wrote: > Zookeeper is required. That being said, you can have an external > Zookeeper or Giraph can start one for you. It's your choice. > > Eli is the one to contact regarding Giraph on Hadoop 2.0.5. Any thoughts > Eli? > > Avery > > > On 6/24/13 5:22 PM, Chuan Lei wrote: > >> It is not clear to me that whether Zookeeper is required or optional to >> Giraph. I wonder if it is possible to run Giraph without Zookeeper. If not >> the case, would the default Zookeeper work with Giraph? Is there anything >> has to be changed on Zookeeper. >> >> Another question is that I have the following error message when I ran >> Giraph on Hadoop-2.0.5 when I ran the PageRankBenchmark program. I saw >> similar posts on the mailing list, but it seems no clear answer to it yet. >> I would be grateful if someone can answer my question and resolve the issue. >> >> Error: java.lang.**IllegalStateException: run: Caught an unrecoverable >> exception java.io.FileNotFoundException: File _bsp/_defaultZkManagerDir/job_ >> **1372108933881_0002/_zkServer does not exist. at >> org.apache.giraph.graph.**GraphMapper.run(GraphMapper.**java:102) at >> org.apache.hadoop.mapred.**MapTask.runNewMapper(MapTask.**java:757) at >> org.apache.hadoop.mapred.**MapTask.run(MapTask.java:339) at >> org.apache.hadoop.mapred.**YarnChild$2.run(YarnChild.**java:158) 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:**1478) at org.apache.hadoop.mapred.** >> YarnChild.main(YarnChild.java:**153) Caused by: >> java.lang.RuntimeException: java.io.FileNotFoundException: File >> _bsp/_defaultZkManagerDir/job_**1372108933881_0002/_zkServer does not >> exist. at org.apache.giraph.zk.**ZooKeeperManager.** >> onlineZooKeeperServers(**ZooKeeperManager.java:790) at >> org.apache.giraph.graph.**GraphTaskManager.**startZooKeeperManager(**GraphTaskManager.java:357) >> at >> org.apache.giraph.graph.**GraphTaskManager.setup(**GraphTaskManager.java:188) >> at org.apache.giraph.graph.**GraphMapper.setup(GraphMapper.**java:60) at >> org.apache.giraph.graph.**GraphMapper.run(GraphMapper.**java:90) ... 7 >> more Caused by: java.io.FileNotFoundException: File >> _bsp/_defaultZkManagerDir/job_**1372108933881_0002/_zkServer does not >> exist. at org.apache.hadoop.hdfs.**DistributedFileSystem.**listStatus(** >> DistributedFileSystem.java:**405) at org.apache.giraph.zk.** >> ZooKeeperManager.**onlineZooKeeperServers(**ZooKeeperManager.java:749) >> ... 11 more >> >> Regards, >> Chuan >> > >
