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Chukwa >> mail # user >> Connector error

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Connector error
Hi, Eric:
      When I running the chukwa in cluster,I encountered a question about
the hbase  Connector .My HBase normal run, But Connector error has
occurred,   my hbase is 0.90.4 ,and hadoop is hadoop-1.0.0.chukwa is
chukwa-0.5.0 .
         Connector.log  error tips is :

2012-08-11 21:50:51,693 INFO Timer-2 HBaseWriter -

2012-08-11 21:50:51,766 INFO btpool0-1-SendThread(localhost:21818)
ClientCnxn - Opening socket connection to server localhost/

2012-08-11 21:50:51,767 WARN btpool0-1-SendThread(localhost:21818)
ClientCnxn - Session 0x0 for server null, unexpected error, closing socket
connection and attempting reconnect

java.net.ConnectException: Connection refused

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


    at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1119)

As someone's advice ,i removed the IPV6 in /etc/hosts (::1 localhost)and
disable the ipv6 functions.But still could not solve the problem。Can you
tell me how
to solve the problem? thanks!
Best regards ,