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From "Alejandro Abdelnur (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HADOOP-7115) Add a cache for getpwuid_r and getpwgid_r calls
Date Wed, 07 Nov 2012 20:58:12 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-7115?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Alejandro Abdelnur updated HADOOP-7115:

    Attachment: HADOOP-7115.patch

Patch for trunk. It revives the cache for ID->NAME. It has been refactored a bit to be
used for both UIDs and GIDs. It has been tested in a secure cluster configured to use and
external directory for user provisioning running terasort jobs. Without this patch the same
cluster cannot run a single terasort job for non-local users.
> 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, 2.0.2-alpha, 0.23.4
>            Reporter: Arun C Murthy
>            Assignee: Alejandro Abdelnur
>             Fix For: 0.22.1, 2.0.3-alpha
>         Attachments: h-7115.1.patch, hadoop-7115-0.22.patch, hadoop-7115-0.22.patch,
> As discussed in HADOOP-6978, a cache helps a lot.

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