phoenix-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Josh Elser (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (PHOENIX-4004) Assorted improvements to reduce garbage in mutable index codepath
Date Fri, 21 Jul 2017 21:22:00 GMT

    [ https://issues.apache.org/jira/browse/PHOENIX-4004?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16096894#comment-16096894
] 

Josh Elser commented on PHOENIX-4004:
-------------------------------------

Thanks, Andrew!

Pushing this one before I forget about it again.

> Assorted improvements to reduce garbage in mutable index codepath
> -----------------------------------------------------------------
>
>                 Key: PHOENIX-4004
>                 URL: https://issues.apache.org/jira/browse/PHOENIX-4004
>             Project: Phoenix
>          Issue Type: Improvement
>            Reporter: Josh Elser
>            Assignee: Josh Elser
>            Priority: Minor
>             Fix For: 4.12.0
>
>         Attachments: PHOENIX-4004.001.patch, PHOENIX-4004.002.patch
>
>
> During some $dayjob testing, I found a couple of places where we were unnecessarily creating
garbage in the RS. When "forward-porting" this change, most of the areas were already cleaned
up but there are a few that still apply.
> * ArrayList initial sizing
> * Avoid indirection of the (single-threaded) ExecutorService in IndexBuildManager (just
pure overhead)
> * Some unnecessary KeyValue copies and an array copy (an avoidance of deprecated HBase
API)
> * Avoid extra {{System.arraycopy}} calls in CoveredColumnIndexCodec via the {{ArrayUtils.addAll}}
call



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Mime
View raw message