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From "Srikanth Sundarrajan (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FALCON-9) Expose runtime metrics from Falcon via http in JSON
Date Sun, 14 Jul 2013 16:48:51 GMT

    [ https://issues.apache.org/jira/browse/FALCON-9?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13708068#comment-13708068

Srikanth Sundarrajan commented on FALCON-9:

Following metrics are already being collected via Falcon and the same is published to a log
file. This can be published to an external metrics collection framework similar to Ganglia/Graphite
as well. Personal preference would be to avoid storing and exposing metrics through Falcon,
instead collect and publish to a standard metric repository & dashboard.

This is also an opportunity to visit the metric list to see if more needs to be added to this

* Number of API calls & call execution latency of 
  * getRunningInstances
  * getInstanceStatus
  * getInstanceLogs
  * killInstance
  * suspendInstance
  * resumeInstance
  * submitNewEntity
  * deleteEntity
  * updateEntity
  * getEntityStatus
  * getDependency
  * scheduleEntity
  * suspendEntity
  * resumeEntity
* Number of retry failures
* Instances of late re-run failures
* Execution time of failed process instances

> Expose runtime metrics from Falcon via http in JSON
> ---------------------------------------------------
>                 Key: FALCON-9
>                 URL: https://issues.apache.org/jira/browse/FALCON-9
>             Project: Falcon
>          Issue Type: Improvement
>          Components: metrics
>         Environment: Operability
>            Reporter: Nikhil Mulley
> Please expose the runtime metrics of Falcon over http at /metrics handler. Something
similar to hadoop components (namenode, datanode, tasktracker....) exposing the metrics on
webUI /metrics handler. Format can be JSON.
> We need to discuss and come up with all possible runtime metrics needed to be exposed
from Falcon which could further be usable with collecting/graphing/alerting systems.
> thanks,
> Nikhil

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