hadoop-hdfs-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "Colin Patrick McCabe (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HDFS-5651) Remove dfs.namenode.caching.enabled and improve CRM locking
Date Thu, 09 Jan 2014 10:47:54 GMT

     [ https://issues.apache.org/jira/browse/HDFS-5651?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Colin Patrick McCabe updated HDFS-5651:
---------------------------------------

    Resolution: Fixed
        Status: Resolved  (was: Patch Available)

this was committed to trunk

> Remove dfs.namenode.caching.enabled and improve CRM locking
> -----------------------------------------------------------
>
>                 Key: HDFS-5651
>                 URL: https://issues.apache.org/jira/browse/HDFS-5651
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: namenode
>    Affects Versions: 3.0.0
>            Reporter: Colin Patrick McCabe
>            Assignee: Colin Patrick McCabe
>             Fix For: 3.0.0
>
>         Attachments: HDFS-5651.001.patch, HDFS-5651.002.patch, HDFS-5651.003.patch, HDFS-5651.004.patch,
HDFS-5651.006.patch, HDFS-5651.006.patch, HDFS-5651.008.patch, HDFS-5651.009.patch
>
>
> We can remove dfs.namenode.caching.enabled and simply always enable caching, similar
to how we do with snapshots and other features.  The main overhead is the size of the cachedBlocks
GSet.  However, we can simply make the size of this GSet configurable, and people who don't
want caching can set it to a very small value.



--
This message was sent by Atlassian JIRA
(v6.1.5#6160)

Mime
View raw message