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From "Liang Xie (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7845) optimize hfile index size like leveldb's ByteWiseComparatorImpl::FindShortestSeparator() style
Date Tue, 19 Feb 2013 06:53:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7845?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13581060#comment-13581060
] 

Liang Xie commented on HBASE-7845:
----------------------------------

Hi [~mcorgan], thanks for your comments, i haven't looked into HBASE-4676 yet, will try to
do a simple benchmark if possible after maked an raw patch.
IIRC, these two manners are not conflict, at least in leveldb, both prefix-compaction and
above "faked" index key are exist:)
                
> optimize hfile index size like leveldb's ByteWiseComparatorImpl::FindShortestSeparator()
style
> ----------------------------------------------------------------------------------------------
>
>                 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
>
> Leveldb uses ByteWiseComparatorImpl::FindShortestSeparator() & FindShortSuccessor()
to reduce index key size, it would be helpful under special conditions.

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