Lars Hofhansl created HBASE-22385:
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Summary: Consider "programmatic" HFiles
Key: HBASE-22385
URL: https://issues.apache.org/jira/browse/HBASE-22385
Project: HBase
Issue Type: Brainstorming
Reporter: Lars Hofhansl
For various use case (among other there is mass deletes) it would be great if
HBase had a mechanism for programmatic HFiles. I.e. HFiles (with HFileScanner
and Reader) that produce KeyValue just like any other old HFile, but the key
values produced are generated or produced by some other means rather than being
physically read from some storage medium.
In fact this could be a generalization for the various HFiles we have: (Normal)
HFiles, HFileLinks, HalfStoreFiles, etc.
A simple way could be to allow for storing a classname into the HFile. Upon
reading the HFile HBase would instantiate an instance of that class and that
instance is responsible for all further interaction with that HFile. For normal
HFiles it would just be the normal HFileReader.
(Remember this is Brainstorming)
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