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From "Anu Engineer (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HDFS-11601) Ozone: Compact DB should be called on Open Containers.
Date Wed, 06 Sep 2017 22:38:01 GMT

    [ https://issues.apache.org/jira/browse/HDFS-11601?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16156142#comment-16156142
] 

Anu Engineer commented on HDFS-11601:
-------------------------------------

[~cheersyang] Since we have RocksDB now, I think we should wait until we get more testing
with scale and see if we really need to do anything here. I have marked it as ozoneMerge so
that we will be forced to look at this before merge.

> Ozone: Compact DB should be called on Open Containers.
> ------------------------------------------------------
>
>                 Key: HDFS-11601
>                 URL: https://issues.apache.org/jira/browse/HDFS-11601
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ozone
>    Affects Versions: HDFS-7240
>            Reporter: Anu Engineer
>            Assignee: Weiwei Yang
>              Labels: ozoneMerge, tocheck
>
> The discussion in HDFS-11594 pointed to a potential issue that we might run into. That
is too many delete key operations can take place and make a DB slow. Running compactDB in
those cases are useful. Currently we run compactDB when we close a container. This JIRA tracks
a potential improvement of running compactDB even on open containers.



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