hbase-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Andrew Purtell (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11444) Remove use of reflection for User#getShortName
Date Fri, 04 Jul 2014 19:07:34 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11444?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14052619#comment-14052619
] 

Andrew Purtell commented on HBASE-11444:
----------------------------------------

Attached patch compiles locally with -Dhadoop.profile=1.0 and default. Let's see what HadoopQA
says. 

> Remove use of reflection for User#getShortName
> ----------------------------------------------
>
>                 Key: HBASE-11444
>                 URL: https://issues.apache.org/jira/browse/HBASE-11444
>             Project: HBase
>          Issue Type: Improvement
>    Affects Versions: 0.98.3
>            Reporter: Andrew Purtell
>            Assignee: Andrew Purtell
>             Fix For: 0.99.0, 0.98.4
>
>         Attachments: HBASE-11444.patch, IntegrationTestIngestWithACL.svg
>
>
> The time we spend looking up a user's short name with User#getShortName in hot security
code paths is mostly spent in Class#getMethod, ~70%. This is only ~1% of overall CPU time
but is the bulk of time spent in AccessController#prePut, for example.



--
This message was sent by Atlassian JIRA
(v6.2#6252)

Mime
View raw message