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Posted to issues@sentry.apache.org by "Alexander Kolbasov (JIRA)" <ji...@apache.org> on 2017/06/17 01:08:00 UTC

[jira] [Commented] (SENTRY-1806) Improve memory handling for HDFS sync

    [ https://issues.apache.org/jira/browse/SENTRY-1806?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16052611#comment-16052611 ] 

Alexander Kolbasov commented on SENTRY-1806:
--------------------------------------------

The patch addresses several aread:

1) Convert linked lists to ArrayList
2) Specify the size of the list whenever posisble
3) Use static empty lists and singletons whenever possible



> Improve memory handling for HDFS sync
> -------------------------------------
>
>                 Key: SENTRY-1806
>                 URL: https://issues.apache.org/jira/browse/SENTRY-1806
>             Project: Sentry
>          Issue Type: Sub-task
>          Components: Sentry
>    Affects Versions: 1.8.0, sentry-ha-redesign
>            Reporter: Alexander Kolbasov
>            Assignee: Alexander Kolbasov
>             Fix For: sentry-ha-redesign
>
>         Attachments: SENTRY-1806-01-sentry-ha-redesign.patch
>
>
> The SentryHDFSServiceClientDefaultImpl uses linked lists to represent updates. INstead it should use ArrayList for delta update and singleton for full updates. This will improve memory usage on the HDFS side.



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