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From Arun Kumaran Sabtharishi <>
Subject Apache Phoenix upgrade fails hbase server startup
Date Wed, 16 Dec 2015 22:17:30 GMT
Hello all,

While restarting the HBase servers after upgrading from Apache phoenix
4.5.1-HBase-1.0 to 4.6.0-HBase-1.0, the master server start fails due to
the following exception.

2015-12-16 14:11:32,330 FATAL org.apache.hadoop.hbase.master.HMaster:
Failed to become active master
java.lang.RuntimeException: java.lang.RuntimeException:
java.lang.ClassNotFoundException: Class
org.apache.phoenix.hbase.index.balancer.IndexLoadBalancer not found

Reverting to 4.5.1 makes things working again.

What possibly could be the problem here?


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