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From "Lars Hofhansl (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-7702) Adding filtering to Import jobs
Date Tue, 29 Jan 2013 04:47:15 GMT

    [ https://issues.apache.org/jira/browse/HBASE-7702?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13565076#comment-13565076
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Lars Hofhansl commented on HBASE-7702:
--------------------------------------

In the fist KeyValueImporter.map(...) you are converting the KVs twice now.

Nits:
* Why not just catch {{Exception}} at Filter invocation rather than performing the same action
for 5 different Exceptions.
* Should we mention in the help that only filterKeyValue(...) will be applied?

As a general question: Should filter before we convert the KVs or after?

Looks good otherwise.
                
> Adding filtering to Import jobs
> -------------------------------
>
>                 Key: HBASE-7702
>                 URL: https://issues.apache.org/jira/browse/HBASE-7702
>             Project: HBase
>          Issue Type: Bug
>          Components: mapreduce
>            Reporter: Jesse Yates
>            Assignee: Jesse Yates
>             Fix For: 0.96.0, 0.94.5
>
>         Attachments: hbase-7702_0.94-v0.patch, hbase-7702_trunk-v0.patch
>
>
> Add the ability to filter to the Import MapReduce job.
> Often times when restoring a table from an Export job, its not desirable to import all
the rows, but rather just a subset. This adds the abililty to just import rows to the table
that pass a given filter.
> This is the complement to HBASE-2495

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