JerryXin created HADOOP-13477:
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Summary: Ganglia metrics can be only sent to the first metric
server
Key: HADOOP-13477
URL: https://issues.apache.org/jira/browse/HADOOP-13477
Project: Hadoop Common
Issue Type: Bug
Components: metrics
Affects Versions: 2.6.4, 2.7.2
Reporter: JerryXin
Priority: Minor
Ganglia metrics can be only sent to the first metric server.
If I config namenode.sink.ganglia.servers=host1:8649,host2:8649 in
hadoop-metrics2.properties,then metrics can only be sent to host1,host2 will
never receive them.This means if gmond on host1 is down,metrics will not be
collected.
This happens because GangliaSink parse metric servers use a getString method in
SubsetConfiguration,while this method return only the first element in the list.
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