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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (HBASE-10058) Test for HBASE-9915 (avoid reading index blocks)
Date Fri, 29 Nov 2013 23:05:35 GMT

     [ https://issues.apache.org/jira/browse/HBASE-10058?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Lars Hofhansl resolved HBASE-10058.
-----------------------------------

       Resolution: Fixed
    Fix Version/s: 0.96.2
                   0.98.0
     Hadoop Flags: Reviewed

> Test for HBASE-9915 (avoid reading index blocks)
> ------------------------------------------------
>
>                 Key: HBASE-10058
>                 URL: https://issues.apache.org/jira/browse/HBASE-10058
>             Project: HBase
>          Issue Type: Bug
>            Reporter: Lars Hofhansl
>            Assignee: Lars Hofhansl
>             Fix For: 0.98.0, 0.94.15, 0.96.2
>
>         Attachments: 10058-0.94.txt, 10058-trunk.txt
>
>
> In HBASE-9915 we found that for encoded blocks the quick check whether the seek key falls
on the current block did not work.
> This adds a unittest so we won't regress. The test counts the number of blocks accessed
(real data/index block in 0.94 and cache hits in trunk). Without HBASE-9915 we see about 50%
more blocks hit in this test.



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