[
https://issues.apache.org/jira/browse/HBASE-17057?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15849264#comment-15849264
]
Ashu Pachauri commented on HBASE-17057:
---------------------------------------
[~ghelmling] Sure, I'll add the config keys to hbase-default.xml. I also don't
see a reason why someone would want to set it to false in general.
You are right, this change is not effective on master; created HBASE-17582 to
track it.
> Minor compactions should also drop page cache behind reads
> ----------------------------------------------------------
>
> Key: HBASE-17057
> URL: https://issues.apache.org/jira/browse/HBASE-17057
> Project: HBase
> Issue Type: Improvement
> Components: Compaction
> Reporter: Ashu Pachauri
> Assignee: Ashu Pachauri
> Fix For: 1.3.1
>
> Attachments: HBASE-17057.V1.patch
>
>
> Long compactions currently drop cache behind reads/writes so that they don't
> pollute the page cache but short compactions don't do that. The bulk of the
> data is actually read during minor compactions instead of major compactions,
> and thrashes the page cache since it's mostly not needed.
> We should drop page cache behind minor compactions too.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
