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https://issues.apache.org/jira/browse/TEZ-870?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14082365#comment-14082365
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Chen He edited comment on TEZ-870 at 8/1/14 3:43 PM:
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I can answer the last question. Local mode does not "reuse container".
Container in Local mode is just a fake container with incremental ContainerId.
Actually each task runs as a thread in the same JVM. Once DAGAM asks for a
container, scheduler just gives a new one which has unique ContainerId. This is
how TEZ-708 works.
was (Author: airbots):
I can answer the last question. Local mode does not "reuse container".
Container in Local mode is just a fake container with incremental ContainerId.
Actually each task runs as a thread in the same JVM. Once DAGAM ask for an
container, scheduler just give a new one which has unique containerId. This is
how TEZ-708 works.
> LocalContainerLauncher improvement
> ----------------------------------
>
> Key: TEZ-870
> URL: https://issues.apache.org/jira/browse/TEZ-870
> Project: Apache Tez
> Issue Type: Sub-task
> Reporter: Chen He
> Assignee: Siddharth Seth
> Priority: Blocker
> Attachments: TEZ-870.1.txt
>
>
> LocalContainerLauncher should just be responsible for queuing up requests,
> and starting threads based on the number of configured tasks.
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