It seems you can not get root region from zookeker.
Could you do a simple test like following to verify whether you can
connect to hbase ?
public class Test{
public static void main(String[] args) throws IOException{
HTable table=new HTable("your_table");
}
}
On Thu, Oct 14, 2010 at 10:29 AM, George P. Stathis
<[email protected]> wrote:
> Update: wait for it long enough and this is the resulting stack trace:
>
> 2010-10-13 22:01:54,791 [Thread-4] INFO org.apache.zookeeper.ZooKeeper -
> Initiating client connection, host=localhost:2181 sessionTimeout=60000
> watcher=org.apache.hadoop.hbase.client.hconnectionmanager$clientzkwatc...@14cb754f
> 2010-10-13 22:01:54,792 [Thread-4] INFO org.apache.zookeeper.ClientCnxn -
> zookeeper.disableAutoWatchReset is false
> 2010-10-13 22:01:54,820 [Thread-4-SendThread] INFO
> org.apache.zookeeper.ClientCnxn - Attempting connection to server
> localhost/fe80:0:0:0:0:0:0:1%1:2181
> 2010-10-13 22:01:54,832 [Thread-4-SendThread] INFO
> org.apache.zookeeper.ClientCnxn - Priming connection to
> java.nio.channels.SocketChannel[connected local=/fe80:0:0:0:0:0:0:1%1:57908
> remote=localhost/fe80:0:0:0:0:0:0:1%1:2181]
> 2010-10-13 22:01:54,850 [Thread-4-SendThread] INFO
> org.apache.zookeeper.ClientCnxn - Server connection successful
> 2010-10-13 22:01:54,952 [main] INFO
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - 0% complete
> 2010-10-13 22:25:45,646 [main] INFO
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - job null has failed! Stop running all dependent jobs
> 2010-10-13 22:25:45,714 [main] WARN org.apache.pig.tools.pigstats.JobStats
> - unable to get input counter for influencers
> 2010-10-13 22:25:45,718 [main] WARN org.apache.pig.tools.pigstats.JobStats
> - unable to get input counter for channels
> 2010-10-13 22:25:45,719 [main] INFO
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.MapReduceLauncher
> - 100% complete
> 2010-10-13 22:25:45,795 [main] ERROR org.apache.pig.tools.pigstats.PigStats
> - ERROR 2118: Timed out trying to locate root region
> 2010-10-13 22:25:45,795 [main] ERROR
> org.apache.pig.tools.pigstats.PigStatsUtil - 1 map reduce job(s) failed!
> 2010-10-13 22:25:45,795 [main] INFO org.apache.pig.tools.pigstats.PigStats
> - Detected Local mode. Stats reported below may be incomplete
> 2010-10-13 22:25:45,797 [main] INFO org.apache.pig.tools.pigstats.PigStats
> - Script Statistics:
>
> HadoopVersion PigVersion UserId StartedAt FinishedAt Features
> 0.20.2 0.8.0-SNAPSHOT gstathis 2010-10-13 22:01:52 2010-10-13 22:25:45
> HASH_JOIN,FILTER
>
> Failed!
>
> Failed Jobs:
> JobId Alias Feature Message Outputs
> N/A allinfs,allinfs_strings,channels,infs,infsAndChannels,suspects
> HASH_JOIN Message:
> org.apache.pig.backend.executionengine.ExecException: ERROR 2118: Timed out
> trying to locate root region
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:280)
> at org.apache.hadoop.mapred.JobClient.writeNewSplits(JobClient.java:885)
> at org.apache.hadoop.mapred.JobClient.submitJobInternal(JobClient.java:779)
> at org.apache.hadoop.mapred.JobClient.submitJob(JobClient.java:730)
> at org.apache.hadoop.mapred.jobcontrol.Job.submit(Job.java:378)
> at
> org.apache.hadoop.mapred.jobcontrol.JobControl.startReadyJobs(JobControl.java:247)
> at org.apache.hadoop.mapred.jobcontrol.JobControl.run(JobControl.java:279)
> at java.lang.Thread.run(Thread.java:637)
> Caused by: org.apache.hadoop.hbase.client.NoServerForRegionException: Timed
> out trying to locate root region
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRootRegion(HConnectionManager.java:983)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:625)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:601)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:670)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:630)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:601)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegionInMeta(HConnectionManager.java:670)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:634)
> at
> org.apache.hadoop.hbase.client.HConnectionManager$TableServers.locateRegion(HConnectionManager.java:601)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:134)
> at org.apache.hadoop.hbase.client.HTable.<init>(HTable.java:112)
> at
> org.apache.pig.backend.hadoop.hbase.HBaseStorage.setLocation(HBaseStorage.java:289)
> at
> org.apache.pig.backend.hadoop.executionengine.mapReduceLayer.PigInputFormat.getSplits(PigInputFormat.java:261)
> ... 7 more
>
>
> On Wed, Oct 13, 2010 at 8:46 PM, George P. Stathis
> <[email protected]>wrote:
>
>> I'm running this locally, so I have hbase and pig running on my dev box. I
>> used to be able to connect just fine when running 0.20.6. We are in the
>> process of migrating to 0.89 and I was testing our pig scripts which is when
>> I found out that it wasn't working for me.
>>
>> Did you have to do anything special to get pig to work?
>>
>>
>> On Wed, Oct 13, 2010 at 6:31 PM, Dmitriy Ryaboy <[email protected]>wrote:
>>
>>> George,
>>> I tested it (though not very extensively) on hbase-0.89, which is what we
>>> run in production.
>>> Are you able to connect to hbase from the machine you are running pig on?
>>>
>>> -Dmitriy
>>>
>>> On Wed, Oct 13, 2010 at 1:08 PM, George Stathis <[email protected]>
>>> wrote:
>>>
>>> > Hey folks, I've been trying HBaseStorage 0.8.0 trunk with hbase-0.89 and
>>> it
>>> > does not seem to work. It gets stuck at:
>>> >
>>> > [...]
>>> > 2010-10-13 14:58:44,064 [Thread-4] INFO org.apache.zookeeper.ClientCnxn
>>> -
>>> > zookeeper.disableAutoWatchReset is false
>>> > 2010-10-13 14:58:44,182 [Thread-4-SendThread] INFO
>>> > org.apache.zookeeper.ClientCnxn - Attempting connection to server
>>> > localhost/127.0.0.1:2181
>>> > 2010-10-13 14:58:44,188 [Thread-4-SendThread] INFO
>>> > org.apache.zookeeper.ClientCnxn - Priming connection to
>>> > java.nio.channels.SocketChannel[connected
>>> > local=/127.0.0.1:54359remote=localhost/
>>> > 127.0.0.1:2181]
>>> > 2010-10-13 14:58:44,191 [Thread-4-SendThread] INFO
>>> > org.apache.zookeeper.ClientCnxn - Server connection successful
>>> >
>>> > and stays there. Has anyone tried running it against hbase 0.89 or is
>>> > 0.20.6
>>> > the only last supported version?
>>> >
>>> > -GS
>>> >
>>>
>>
>>
>
--
Best Regards
Jeff Zhang
