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From GitBox <...@apache.org>
Subject [GitHub] [fluo-muchos] karthick-rn commented on a change in pull request #270: Support Accumulo installs on Microsoft Azure
Date Mon, 12 Aug 2019 21:47:18 GMT
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
 
 

 ##########
 File path: conf/muchos.props.example
 ##########
 @@ -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.
Sharing the Apache [doc](https://hadoop.apache.org/docs/current/hadoop-project-dist/hadoop-hdfs/HDFSHighAvailabilityWithQJM.html#Automatic_Failover)
in-case it helps.

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