Restructure hfiles layout for better compression
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Key: HBASE-5313
URL: https://issues.apache.org/jira/browse/HBASE-5313
Project: HBase
Issue Type: Improvement
Components: io
Reporter: dhruba borthakur
Assignee: dhruba borthakur
A HFile block contain a stream of key-values. Can we can organize these kvs on
the disk in a better way so that we get much greater compression ratios?
One option (thanks Prakash) is to store all the keys in the beginning of the
block (let's call this the key-section) and then store all their corresponding
values towards the end of the block. This will allow us to not-even decompress
the values when we are scanning and skipping over rows in the block.
Any other ideas?
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