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From "Allen Wittenauer (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-7115) Add a cache for getpwuid_r and getpwgid_r calls
Date Sat, 22 Jan 2011 18:52:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12985178#action_12985178
] 

Allen Wittenauer commented on HADOOP-7115:
------------------------------------------

> Yes. In my opinion this is unavoidable for large scale systems.

>From my understanding, the reliability issue was fixed by upgrading libc and/or nscd.
 This makes it an OS bug that was fixed with a vendor supplied patch.  We need to be very
clear on what we want to do when it comes to OS workarounds. Right now, we're incredibly inconsistent.
(and yes, I'm thinking specifically of the whoami, getent, etc problems.)


> Add a cache for getpwuid_r and getpwgid_r calls
> -----------------------------------------------
>
>                 Key: HADOOP-7115
>                 URL: https://issues.apache.org/jira/browse/HADOOP-7115
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 0.22.0
>            Reporter: Arun C Murthy
>            Assignee: Devaraj Das
>
> As discussed in HADOOP-6978, a cache helps a lot.

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