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https://issues.apache.org/jira/browse/TEZ-2119?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14487925#comment-14487925
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Rohini Palaniswamy commented on TEZ-2119:
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Still need the LAUNCHED_CONTAINERS. If there are going to be containers
launched and were not used (no tasks submitted to them) then you should have
both TOTAL_LAUNCHED_CONTAINERS and TOTAL_USED_CONTAINERS. Also is it possible
to add something like AVG_CONTAINER_REUSE or some better statistics to see the
amount of reuse?
> Counter for launched containers
> -------------------------------
>
> Key: TEZ-2119
> URL: https://issues.apache.org/jira/browse/TEZ-2119
> Project: Apache Tez
> Issue Type: Improvement
> Reporter: Rohini Palaniswamy
> Assignee: Jeff Zhang
>
> org.apache.tez.common.counters.DAGCounter
> NUM_SUCCEEDED_TASKS=32976
> TOTAL_LAUNCHED_TASKS=32976
> OTHER_LOCAL_TASKS=2
> DATA_LOCAL_TASKS=9147
> RACK_LOCAL_TASKS=23761
> It would be very nice to have TOTAL_LAUNCHED_CONTAINERS counter added to
> this. The difference between TOTAL_LAUNCHED_CONTAINERS and
> TOTAL_LAUNCHED_TASKS should make it easy to see how much container reuse is
> happening. It is very hard to find out now.
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