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https://issues.apache.org/jira/browse/TAJO-127?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13750044#comment-13750044
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Hyunsik Choi commented on TAJO-127:
-----------------------------------
+1
It's really great work. It significantly reduces the delay of resource
allocation and container launch. It shortens also a large amount time for unit
tests. After this, the integration test on a number of frontend tests takes
only three minutes; it took 10 minutes when it was only based on yarn.
I really appreciate your contribution. I've committed it, and I've resolved it
as as resolved.
Besides, this work needs an additional documentation on starting a Tajo
cluster. I'll create a separate jira issue for that. Thanks!
> Implement Tajo Resource Manager
> -------------------------------
>
> Key: TAJO-127
> URL: https://issues.apache.org/jira/browse/TAJO-127
> Project: Tajo
> Issue Type: Sub-task
> Components: worker
> Affects Versions: 0.2-incubating
> Reporter: hyoungjunkim
> Assignee: hyoungjunkim
> Fix For: 0.2-incubating
>
> Attachments: TAJO-127.patch
>
>
> Implement our own resource manager and worker containers for the standby mode
> without YARN.
> 1. QueryWorker stated when cluster startup.
> 2. TajoClient requests query to TajoMaster.
> 3. TajoResourceManager assigns role QueryMaster to a QueryWorker.
> 4. TajoResourceManager assigns QueryWorkers for execution query.
> 5. TajoMaster requests query to QueryMaster.
> 6. TajoClient checks QueryStatus to TajoMaster.
> 7. TajoMaster reports QueryMaster’s host, port to TajoClient.
> 8. QueryMaster assigns QueryUnit to QeuryWorker.
> 9. TajoClient fetches result data from QueryMaster.
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