hbase-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Adam Silberstein <silbe...@yahoo-inc.com>
Subject Java client problem w/ zookeeper
Date Wed, 13 Jan 2010 19:25:31 GMT
Hi,
I set up a new Hbase cluster and am seeing an error I haven't seen before.
When I start up Hbase I have this NodeExists error in the zookeeper log:

org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
NodeExists
        at 
org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
or.java:245)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
va:114)
2010-01-13 11:10:47,503 WARN
org.apache.zookeeper.server.PrepRequestProcessor: Got exception when
processing sessionid:0x1262918396b0002 type:create cxid:0xc
zxid:0xfffffffffffffffe txntype:unknown n/a
org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
NodeExists
        at 
org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
or.java:245)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
va:114)

I've read that may be harmless.  But then when I run the java client, it
cannot do any operations.  And I see a similar NodeExists error in the
zookeeper log.


2010-01-13 11:11:24,661 INFO org.apache.zookeeper.server.NIOServerCnxn:
Connected to /203.104.21.210:36928 lastZxid 0
2010-01-13 11:11:24,661 INFO org.apache.zookeeper.server.NIOServerCnxn:
Creating new session 0x1262918396b0004
2010-01-13 11:11:24,664 INFO org.apache.zookeeper.server.NIOServerCnxn:
Finished init of 0x1262918396b0004 valid:true
2010-01-13 11:11:24,973 WARN
org.apache.zookeeper.server.PrepRequestProcessor: Got exception when
processing sessionid:0x1262918396b0004 type:create cxid:0x2
zxid:0xfffffffffffffffe txntype:unknown n/a
org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
NodeExists
        at 
org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
or.java:245)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
va:114)
2010-01-13 11:11:33,088 WARN org.apache.zookeeper.server.NIOServerCnxn:
Exception causing close of session 0x1262918396b0004 due to
java.io.IOException: Read error
2010-01-13 11:11:33,089 INFO org.apache.zookeeper.server.NIOServerCnxn:
closing session:0x1262918396b0004 NIOServerCnxn:
java.nio.channels.SocketChannel[connected local=/203.104.21.210:2181
remote=/203.104.21.210:36928]
2010-01-13 11:11:42,709 INFO org.apache.zookeeper.server.NIOServerCnxn:
Connected to /203.104.21.212:54837 lastZxid 0
2010-01-13 11:11:42,709 INFO org.apache.zookeeper.server.NIOServerCnxn:
Creating new session 0x1262918396b0005
2010-01-13 11:11:42,711 INFO org.apache.zookeeper.server.NIOServerCnxn:
Finished init of 0x1262918396b0005 valid:true
2010-01-13 11:11:42,711 WARN
org.apache.zookeeper.server.PrepRequestProcessor: Got exception when
processing sessionid:0x1262918396b0005 type:create cxid:0x1
zxid:0xfffffffffffffffe txntype:unknown n/a
org.apache.zookeeper.KeeperException$NodeExistsException: KeeperErrorCode =
NodeExists
        at 
org.apache.zookeeper.server.PrepRequestProcessor.pRequest(PrepRequestProcess
or.java:245)
        at 
org.apache.zookeeper.server.PrepRequestProcessor.run(PrepRequestProcessor.ja
va:114)
2010-01-13 11:12:06,002 INFO org.apache.zookeeper.server.SessionTrackerImpl:
Expiring session 0x1262918396b0004
2010-01-13 11:12:06,002 INFO org.apache.zookeeper.server.ZooKeeperServer:
Expiring session 0x1262918396b0004
2010-01-13 11:12:06,002 INFO
org.apache.zookeeper.server.PrepRequestProcessor: Processed session
termination request for id: 0x1262918396b0004

I've tried wiping the whole setup, including the zookeeper files that Hbase
puts in /tmp and formatting HDFS.  But I get the same problem again.  I'm
not seeing any exceptions on the client-side.

Thanks,
Adam


Mime
View raw message