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From "Christopher Tubbs (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-1524) Abstract file pointers in metadata table
Date Wed, 19 Jun 2013 21:06:20 GMT


Christopher Tubbs commented on ACCUMULO-1524:

It also helps keep the metadata size small (assuming the pointers are smaller than the full
> Abstract file pointers in metadata table
> ----------------------------------------
>                 Key: ACCUMULO-1524
>                 URL:
>             Project: Accumulo
>          Issue Type: Improvement
>            Reporter: Christopher Tubbs
>             Fix For: 1.6.0
> ACCUMULO-118 interprets full URIs for file entries. It may be useful to instead to store
a VolumeID + path, with a separate VolumeID -> URI mapping in configuration, for a level
of indirection. This helps keep the METADATA from needing to be rewritten in strange cases,
like moving a namenode from one host to another, or DNS name/IP address of namenode changes,
or switching to a redundant fail-over DFS instance.

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