[GitHub] [fluo-muchos] karthick-rn commented on a change in pull request #270: Support Accumulo installs on Microsoft Azure

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karthick-rn commented on a change in pull request #270: Support Accumulo installs on Microsoft Azure
URL: https://github.com/apache/fluo-muchos/pull/270#discussion_r313131329
 
 

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 File path: conf/muchos.props.example
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 @@ -158,11 +160,12 @@ yarn_nm_mem_mb=16384
 # <Hostname> = <Service1>[,<Service2>,<Service3>]
 # Where:
 #   Hostname = Must be unique.  Will be used for hostname in EC2 or should match hostname on your own cluster
-#   Service = Service to run on node (possible values: zookeeper, namenode, resourcemanager, accumulomaster, client, swarmmanager,
-#             mesosmaster, worker, fluo, metrics, spark). The following services are required: namenode, resourcemanager,
-#             accumulomaster, zookeeper & worker
-leader1 = namenode,resourcemanager,accumulomaster,zookeeper
-leader2 = metrics
+#   Service = Service to run on node (possible values: zookeeper, namenode, resourcemanager, accumulomaster, client,swarmmanager,
+#             zkfc, journalnode, mesosmaster, worker, fluo, metrics, spark). The following services are required: namenode,
+#             resourcemanager, zkfc, journalnode, mesosmaster, accumulomaster, zookeeper & worker.
+leader1 = namenode,resourcemanager,accumulomaster,zookeeper,journalnode,zkfc
 
 Review comment:
   @keith-turner there is a possible confusion between zkfc and zookeeper service - we are referring to zkfc(zookeeper failover controller), which is a Zookeeper client service that runs on the host running namenodes to monitor the health of the namenodes & report the status back to Zookeeper. This is required in addition to the odd no of ZK we already configured.  Visit the apache [doc](https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html#Automatic_Failover) for more info

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