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From "Yair Even-Zohar" <ya...@audiencescience.com>
Subject problem running Hbase & Katta together on EC2
Date Tue, 01 Sep 2009 10:37:06 GMT
Hbase runs perfectly well as long as it manages zookeeper Katta runs
well on EC2

 

However, when running katta (which is based on internal zookeeper
management) I'm getting some zookeeper errors from Hbase (below):

 

Looking at the errors, it seems that hbase is not familiar with Katta's
zookeeper so I tried to use the same zookeeper jar but got the same
errors.

I found hbase -1311 and 1315 that are related but that's supposed to be
resolved.

 

Has anybody seen this behavior?

 

Thanks

-Yair 

 

 

For the master I get:

2009-09-01 06:14:30,584 INFO org.apache.zookeeper.ZooKeeper: Initiating
client connection, host=domU-12-31-39-01-A4-52.compute-1.internal:2181
sessionTimeout=60000 watcher=Thread[Thread-0,5,main]

2009-09-01 06:14:30,586 INFO org.apache.zookeeper.ClientCnxn:
zookeeper.disableAutoWatchReset is false

2009-09-01 06:14:30,593 INFO org.apache.zookeeper.ClientCnxn: Attempting
connection to server
domU-12-31-39-01-A4-52.compute-1.internal/10.255.171.160:2181

2009-09-01 06:14:30,599 WARN org.apache.zookeeper.ClientCnxn: Exception
closing session 0x0 to sun.nio.ch.SelectionKeyImpl@d05c13

java.net.ConnectException: Connection refused

        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

        at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)

        at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:885)

2009-09-01 06:14:30,600 WARN org.apache.zookeeper.ClientCnxn: Ignoring
exception during shutdown input

java.nio.channels.ClosedChannelException

        at
sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:638)

        at
sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)

        at
org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:951)

        at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:922)

 

 

For the regionServers I get:

2009-09-01 06:12:34,454 WARN org.apache.zookeeper.ClientCnxn: Exception
closing session 0x0 to sun.nio.ch.SelectionKeyImpl@a613f8

java.net.ConnectException: Connection refused

        at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)

        at
sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:574)

        at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:885)

2009-09-01 06:12:34,459 WARN org.apache.zookeeper.ClientCnxn: Ignoring
exception during shutdown input

java.nio.channels.ClosedChannelException

        at
sun.nio.ch.SocketChannelImpl.shutdownInput(SocketChannelImpl.java:638)

        at
sun.nio.ch.SocketAdaptor.shutdownInput(SocketAdaptor.java:360)

        at
org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:951)

        at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:922)

2009-09-01 06:12:34,460 WARN org.apache.zookeeper.ClientCnxn: Ignoring
exception during shutdown output

java.nio.channels.ClosedChannelException

        at
sun.nio.ch.SocketChannelImpl.shutdownOutput(SocketChannelImpl.java:649)

        at
sun.nio.ch.SocketAdaptor.shutdownOutput(SocketAdaptor.java:368)

        at
org.apache.zookeeper.ClientCnxn$SendThread.cleanup(ClientCnxn.java:956)

        at
org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:922)

2009-09-01 06:12:34,572 WARN
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper: Failed to set
watcher on ZNode /hbase/master

org.apache.zookeeper.KeeperException$ConnectionLossException:
KeeperErrorCode = ConnectionLoss for /hbase/master

        at
org.apache.zookeeper.KeeperException.create(KeeperException.java:90)

        at
org.apache.zookeeper.KeeperException.create(KeeperException.java:42)

        at org.apache.zookeeper.ZooKeeper.exists(ZooKeeper.java:649)

 


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