Lars Hofhansl created HBASE-6799:
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Summary: Store more metadata in HFiles
Key: HBASE-6799
URL: https://issues.apache.org/jira/browse/HBASE-6799
Project: HBase
Issue Type: Brainstorming
Reporter: Lars Hofhansl
Current we store metadata in HFile:
* the timerange of KVs
* the earliest PUT ts
* max sequence id
* whether or not this file was created from a major compaction.
I would like to brainstorm what extra data we need to store to make an HFile
self describing. I.e. it could be backed up to somewhere with external tools
(without invoking an HBase server) can gleam enough information from it to make
use of the data inside. Ideally it would also be nice to be able to recreate
.META. from a bunch of HFiles to standup a temporary HBase instance to process
a bunch of HFiles.
What I can think of:
* min/max key
* table
* column family (or families to be future proof)
* custom tags (set by a backup tools for example)
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