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From "Devaraj Das (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-7115) Add a cache for getpwuid_r and getpwgid_r calls
Date Sat, 22 Jan 2011 03:19:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-7115?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12985042#action_12985042
] 

Devaraj Das commented on HADOOP-7115:
-------------------------------------

It was the getpwuid calls leading to ldap outages in our major clusters (almost twice every
week). After implementing this cache, we didn't have a single incident (and hopefully we will
have none in the future too).

The version of nscd on our clusters proved to be really unreliable.

> 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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