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From "Matteo Bertozzi (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HBASE-1818) HFile code review and refinement
Date Wed, 01 Dec 2010 09:17:33 GMT

    [ https://issues.apache.org/jira/browse/HBASE-1818?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12965623#action_12965623
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Matteo Bertozzi commented on HBASE-1818:
----------------------------------------

@Ryan
yep, blockSeek is not a hot method, but with larger keys and blocks it can speedup key lookups.
Extra memory is just 4K for 1024 keys, and for me would not be bad to have it on disk, at
the end of the block.

> HFile code review and refinement
> --------------------------------
>
>                 Key: HBASE-1818
>                 URL: https://issues.apache.org/jira/browse/HBASE-1818
>             Project: HBase
>          Issue Type: Improvement
>          Components: io
>    Affects Versions: 0.20.0
>            Reporter: Schubert Zhang
>            Assignee: Schubert Zhang
>            Priority: Minor
>             Fix For: 0.20.1, 0.90.0
>
>         Attachments: binary-block-seek.patch, HFile-v3.patch, HFile-v4.patch, HFile-v5.patch
>
>
> HFile is a good mimic of Google's SSTable file format. And we want HFile to become a
common file format of hadoop in the near future.
> We will review the code of HFile and record the comments here, and then provide fixed
patch after the review.

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