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Posted to user@hbase.apache.org by lei wang <hb...@gmail.com> on 2009/08/05 12:37:30 UTC

Hbase program reports error sometime(hbase0.20)

My java program on hbase.0.20 api  goes well all the time, but sometimes it
gives an error as:

009-08-05 18:31:36
[org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper]-[ERROR] Failed to
create ZooKeeper object: java.io.IOException: Unable to establish loopback
connection
 org.apache.hadoop.hbase.MasterNotRunningException: java.io.IOException:
java.io.IOException: Unable to establish loopback connection
    at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:245)
    at org.apache.hadoop.hbase.client.HBaseAdmin.<init>(HBaseAdmin.java:72)
    at
casia.isiteam.pgroup.lei.util.HbaseClientConnection.getHTableConnection(HbaseClientConnection.java:67)
    at
casia.isiteam.pgroup.lei.dataoperater.DataInput.dataInsert(DataInput.java:49)
    at
casia.isiteam.pgroup.lei.dataoperater.DataInput.main(DataInput.java:39)
Caused by: java.io.IOException: java.io.IOException: Unable to establish
loopback connection
    at
org.apache.hadoop.hbase.zookeeper.ZooKeeperWrapper.<init>(ZooKeeperWrapper.java:90)
    at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getZooKeeperWrapper(HConnectionManager.java:820)
    at
org.apache.hadoop.hbase.client.HConnectionManager$TableServers.getMaster(HConnectionManager.java:243)
    ... 4 more

Can anyone hlep me ?