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Posted to yarn-issues@hadoop.apache.org by "Wangda Tan (JIRA)" <ji...@apache.org> on 2017/02/27 22:05:45 UTC
[jira] [Updated] (YARN-6245) Add FinalResource object to reduce
overhead of Resource class instancing
[ https://issues.apache.org/jira/browse/YARN-6245?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wangda Tan updated YARN-6245:
-----------------------------
Attachment: YARN-6245.preliminary-staled.1.patch
Attached (potentially staled) patch while working on YARN-5139 tests.
> Add FinalResource object to reduce overhead of Resource class instancing
> ------------------------------------------------------------------------
>
> Key: YARN-6245
> URL: https://issues.apache.org/jira/browse/YARN-6245
> Project: Hadoop YARN
> Issue Type: Sub-task
> Reporter: Wangda Tan
> Attachments: YARN-6245.preliminary-staled.1.patch
>
>
> There're lots of Resource object creation in YARN Scheduler, since Resource object is backed by protobuf, creation of such objects is expensive and becomes bottleneck.
> To address the problem, we can introduce a FinalResource (Is it better to call it ImmutableResource?) object, which is not backed by PBImpl. We can use this object in frequent invoke paths in the scheduler.
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