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Problem

This problem happened on HDP 2.5.3 when running Spark On HBase. Here is the error seen in the application log:

... 
17/04/11 10:12:04 WARN RecoverableZooKeeper: Possibly transient ZooKeeper, quorum=localhost:2181, exception=org.apache.zookeeper.KeeperException$ConnectionLossException: KeeperErrorCode = ConnectionLoss for /hbase/hbaseid
17/04/11 10:12:05 INFO ClientCnxn: Opening socket connection to server localhost/127.0.0.1:2181. Will not attempt to authenticate using SASL (unknown error)
17/04/11 10:12:05 WARN ClientCnxn: Session 0x0 for server null, unexpected error, closing socket connection and attempting reconnect
java.net.ConnectException: Connection refused
at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method)
at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717)
at org.apache.zookeeper.ClientCnxnSocketNIO.doTransport(ClientCnxnSocketNIO.java:361)
at org.apache.zookeeper.ClientCnxn$SendThread.run(ClientCnxn.java:1125) 
...

Solution

To fix that problem ensure that hbase-site.xml file exists in /etc/spark/conf on each of the NodeManager node.

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Last update:
‎04-24-2017 01:24 PM
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