[ACCUMULO-1524] Abstract file pointers in metadata table

• Type: Improvement
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Component/s: tserver
• Assignee: Unassigned
• Reporter: Christopher Tubbs
• Created: 19/Jun/13 21:01
• Updated: 22/Jul/14 16:36

Description

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.

Issue Links

• is related to: ACCUMULO-1832 Create utility for rewriting uris
• relates to: ACCUMULO-3007 instance.volumes.replacements does not work after 1.6 upgrade
• relates to: ACCUMULO-118 accumulo could work across HDFS instances, which would help it to scale past a single namenode