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From Alejandro Fernandez <afernan...@hortonworks.com>
Subject Re: Dependencies on Ambari Metrics Service?
Date Tue, 06 Dec 2016 22:05:50 GMT
Hi Don,

AMS is not a mission-critical service, so you can turn it off since no other Hadoop service
depends on it.
Why are you turning it off though?

It has far more improvements and optimizations in Ambari 2.4

Thanks,
Alejandro

From: Don Brinn <Don.Brinn@D2L.com<mailto:Don.Brinn@D2L.com>>
Reply-To: "user@ambari.apache.org<mailto:user@ambari.apache.org>" <user@ambari.apache.org<mailto:user@ambari.apache.org>>
Date: Tuesday, December 6, 2016 at 1:54 PM
To: "user@ambari.apache.org<mailto:user@ambari.apache.org>" <user@ambari.apache.org<mailto:user@ambari.apache.org>>
Subject: Dependencies on Ambari Metrics Service?

Hi,

Would there be any functional impact of turning off Ambari Metrics Service and leaving it
off indefinitely, other than no longer having metrics that we can use to monitor the state
of our Hadoop cluster?

Is there anything within Ambari or the Hadoop cluster that depends on the metrics service?
 For example, would Ambari still be able to detect and report if some other node or service
is down?

I'm considering turning off the metrics service for a while but want to be sure that that
will not break anything in the cluster.

[This is with HBase version 0.98.4.2.2.6.0-2800-hadoop2 and Ambari Version 2.0.1.]

Thanks,
Don

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