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From "Sean Busbey (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-2613) Take advantage of HDFS caching to improve MTTR
Date Wed, 02 Apr 2014 17:05:15 GMT


Sean Busbey commented on ACCUMULO-2613:

even then, say we pinned all the WALs. how much space is that likely to be? less than 10G
per node? that's not too bad on a hardware cluster.

> Take advantage of HDFS caching to improve MTTR
> ----------------------------------------------
>                 Key: ACCUMULO-2613
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Sean Busbey
>            Priority: Critical
>             Fix For: 1.7.0
> Hadoop 2.3.0 added [HDFS caching|].
> We should use this for small internal use tables (like !METADATA) and we should probably
have a configurable option to use it for tables, with a stern warning that it should only
be enabled on small tables that will be frequently used.

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