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Posted to yarn-issues@hadoop.apache.org by "Sunil Govindan (JIRA)" <ji...@apache.org> on 2018/11/17 03:23:10 UTC
[jira] [Updated] (YARN-6426) Compress ZK YARN keys to scale up
(especially AppStateData
[ https://issues.apache.org/jira/browse/YARN-6426?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sunil Govindan updated YARN-6426:
---------------------------------
Target Version/s: 3.3.0 (was: 3.2.0)
Bulk update: moved all 3.2.0 non-blocker issues, please move back if it is a blocker.
> Compress ZK YARN keys to scale up (especially AppStateData
> ----------------------------------------------------------
>
> Key: YARN-6426
> URL: https://issues.apache.org/jira/browse/YARN-6426
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: yarn
> Affects Versions: 3.0.0-alpha2
> Reporter: Roni Burd
> Assignee: Roni Burd
> Priority: Major
> Labels: patch
> Attachments: zkcompression.patch
>
>
> ZK today stores the protobuf files uncompressed. This is not an issue except that if a customer job has thousands of files, AppStateData will store the user context as a string with multiple URLs and it is easy to get to 1MB or more.
> This can put unnecessary strain on ZK and make the process slow.
> The proposal is to simply compress protobufs before sending them to ZK
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