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Liang Xie commented on HBASE-7845: ---------------------------------- v9 renamed getFakedKey to getShortMidpointKey {quote} This define should be in HFile rather than in HConstants so it is beside where it is used: {quote} If we move it into HFile(hbase-server module), then hbase-common module(BufferedDataBlockEncoder) will need to depend it, it's improper seems to me. bq. I'd think we should try this as part of a long-running job before commit. I can volunteer to do that....... Thanks very much. btw, this feature had been enabled in our internal 0.94.3 cluster more than ten days before, so far so good > optimize hfile index key > ------------------------ > > Key: HBASE-7845 > URL: https://issues.apache.org/jira/browse/HBASE-7845 > Project: HBase > Issue Type: Improvement > Components: HFile > Affects Versions: 0.96.0 > Reporter: Liang Xie > Assignee: Liang Xie > Fix For: 0.98.0 > > Attachments: HBASE-7845.txt, HBASE-7845-v2.txt, HBASE-7845-v3.txt, > HBASE-7845-v4.txt, HBASE-7845-v5.txt, HBASE-7845-v6.txt, HBASE-7845-v7.txt, > HBASE-7845-v8.txt, HBASE-7845-v9.txt > > > Leveldb uses ByteWiseComparatorImpl::FindShortestSeparator() & > FindShortSuccessor() to reduce index key size, it would be helpful under > special conditions. -- This message is automatically generated by JIRA. If you think it was sent incorrectly, please contact your JIRA administrators For more information on JIRA, see: http://www.atlassian.com/software/jira