Configuring Ambari Metrics service in distributed mode

mike_bronson7 — Mon, 13 Jan 2020 06:40:11 GMT

since metrics take space on the local disk ,

we want to move to distributed mode , so metrics data will be on HDFS and not on local disk

we start to work according to the link - https://cwiki.apache.org/confluence/display/AMBARI/AMS+-+distributed+mode

we are using ambari cluster 2.6.4 with active/stand by name node

so we start the configuration

first we set in ambari the following

ams-site, Set timeline.metrics.service.operation.mode = distributed

now we need to Edit ams-hbase-site,

hdfs://<nameservice-id>/user/ams/hbase

the question is - how to find the nameservice-id ?

since we have active/stand by name node

then how to know the - nameservice-id value?

Re: Configuring Ambari Metrics service in distributed mode

Shelton — Sun, 12 Jan 2020 20:57:43 GMT

@mike_bronson7

When your cluster is in HA it uses a namespace that acts as a load balancer to facilitate the switch from active to standby and vice versa.

The dfs-site-xml holds these values filter using dfs.nameservices the nameservice-id should be your namespace or in HA look for dfs.ha.namenodes.[nameservice ID]

dfs.ha.namenodes.[nameservice ID] e.g dfs.ha.namenodes.mycluster

And that's the value to set eg

hdfs://mycluster_namespace/user/ams/hbase

The refresh the stale configs , now HBase should sending the metrics to that directory

HTH

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Configuring Ambari Metrics service in distributed mode

Re: Configuring Ambari Metrics service in distributed mode