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https://issues.apache.org/jira/browse/HADOOP-4827?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12655820#action_12655820
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Eric Yang commented on HADOOP-4827:
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{noformat}
[exec] -1 overall.
[exec] +1 @author. The patch does not contain any @author tags.
[exec] -1 tests included. The patch doesn't appear to include any new
or modified tests.
[exec] Please justify why no tests are needed for
this patch.
[exec] +1 javadoc. The javadoc tool did not generate any warning
messages.
[exec] +1 javac. The applied patch does not increase the total number
of javac compiler warnings.
[exec] +1 findbugs. The patch does not introduce any new Findbugs
warnings.
[exec] +1 Eclipse classpath. The patch retains Eclipse classpath
integrity.
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> Improve data aggregation in database
> ------------------------------------
>
> Key: HADOOP-4827
> URL: https://issues.apache.org/jira/browse/HADOOP-4827
> Project: Hadoop Core
> Issue Type: Improvement
> Components: contrib/chukwa
> Environment: Redhat EL 5.1, Java 6
> Reporter: Eric Yang
> Assignee: Eric Yang
> Attachments: HADOOP-4827.patch
>
>
> Chukwa is running data aggregation in database, and it has the ability to
> generate SQL statements base on macros. On the other hand, there is also
> Consolidator program which Chukwa uses to down sample data in the database.
> Consolidator program can be replaced with the generic Aggregator program plus
> some macros. This enhancement will make the database aggregation framework
> cleaner.
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