Tao Jie created HADOOP-12569:
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Summary: ZKFC should stop namenode before itself quit in some
circumstances
Key: HADOOP-12569
URL: https://issues.apache.org/jira/browse/HADOOP-12569
Project: Hadoop Common
Issue Type: Bug
Components: ha
Affects Versions: 2.6.0
Reporter: Tao Jie
We have met such a HA scenario:
NN1(active) and zkfc1 on node1;
NN2(standby) and zkfc2 on node2.
1,Stop network on node1, NN2 becomes active. On node2, zkfc2 kills itself since
it cannot connect to zookeeper, but leaving NN1 still running.
2,Several minutes later, network on node1 recovers. NN1 is running but out of
control. NN1 and NN2 both run as active nn.
Maybe zkfc should stop nn before quit in such circumstances.
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