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From "nkeywal (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-4118) method regionserver.MemStore/updateColumnValue: the check for qualifier and family is missing in the code
Date Wed, 20 Jul 2011 21:11:58 GMT

    [ https://issues.apache.org/jira/browse/HBASE-4118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13068648#comment-13068648
] 

nkeywal commented on HBASE-4118:
--------------------------------

Sorry for the delay. I will create a proper patch next time. I am going to execute the tests
on your patch on my env and will come back to you, so far it seems ok for me.


On "We should make a KV#matchingRowAndColumn rather than go in there twice?", I don't know
yet. It seems that multiple optimizations are possible. I am going to proposethe easiest ones
first, and then check what remains. 



> method regionserver.MemStore/updateColumnValue: the check for qualifier and family is
missing in the code
> ---------------------------------------------------------------------------------------------------------
>
>                 Key: HBASE-4118
>                 URL: https://issues.apache.org/jira/browse/HBASE-4118
>             Project: HBase
>          Issue Type: Bug
>          Components: regionserver
>    Affects Versions: 0.90.3
>         Environment: all
>            Reporter: nkeywal
>            Priority: Minor
>         Attachments: 4118.txt
>
>
> {code}
>            [...]
>             while (it.hasNext()) {
>                 KeyValue kv = it.next();
>                 // if this isnt the row we are interested in, then bail:
>                 if (!firstKv.matchingColumn(family, qualifier) || !firstKv.matchingRow(kv))
{
>                     break; // rows dont match, bail.
>                 }
>                 [...]
>             }
> {code}
> should be replaced by:
> {code}
>                 // if this isnt the row we are interested in, then bail:
>                 if (!kv.matchingColumn(family, qualifier) || !firstKv.matchingRow(kv))
{
>                     break; // rows dont match, bail.
>                 }
> {code}

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