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From "Jonathan Gray (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4449) LoadIncrementalHFiles should be able to handle CFs with blooms
Date Sat, 24 Sep 2011 02:05:26 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13113872#comment-13113872

Jonathan Gray commented on HBASE-4449:

It looks like the test change was committed but not the change to LoadIncrementalHFiles?

> LoadIncrementalHFiles should be able to handle CFs with blooms
> --------------------------------------------------------------
>                 Key: HBASE-4449
>                 URL: https://issues.apache.org/jira/browse/HBASE-4449
>             Project: HBase
>          Issue Type: Bug
>    Affects Versions: 0.90.4
>            Reporter: Dave Revell
>            Assignee: Dave Revell
>             Fix For: 0.90.5
>         Attachments: HBASE-4449-trunk-testsonly.patch, HBASE-4449-v2.patch, HBASE-4449.patch
> When LoadIncrementalHFiles loads a store file that crosses region boundaries, it will
split the file at the boundary to create two store files. If the store file is for a column
family that has a bloom filter, then a "java.lang.ArithmeticException: / by zero" will be
raised because ByteBloomFilter() is called with maxKeys of 0.
> The included patch assumes that the number of keys in each split child will be equal
to the number of keys in the parent's bloom filter (instead of 0). This is an overestimate,
but it's safe and easy.

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