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From "jaehong choi (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HBASE-1548) give a time range in MapReduce
Date Mon, 22 Jun 2009 15:58:07 GMT

     [ https://issues.apache.org/jira/browse/HBASE-1548?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

jaehong choi updated HBASE-1548:

    Attachment: HBase-1548.patch

I attached a patch.
1. add another org.apache.hadoop.hbase.mapreduce.initTableMapJob() to get timestamps.
2. change org.apache.hadoop.hbase.mapreduce.TableInputFormat.java and org.apache.hadoop.hbase.mapreduce.TableInputFormatBase.java
to support time range scan.
3. unit test for this is in org.apache.hadoop.hbase.mapreduce.TestTimeRangeMapRed.java

> give a time range in MapReduce
> ------------------------------
>                 Key: HBASE-1548
>                 URL: https://issues.apache.org/jira/browse/HBASE-1548
>             Project: Hadoop HBase
>          Issue Type: Improvement
>          Components: mapred
>            Reporter: jaehong choi
>         Attachments: HBase-1548.patch
> I've seen a lot of changes in client APIs by HBASE-1304 patch.
> We can give a time range when we scan a table with assign TimeRange instance to Scan
> I also see some code in org.apache.hadoop.hbase.mapreduce.TableInputForamtBase.java,
which uses a scan instance to get a Scanner instance.
> I think we can also give a time range to query when we do mapreduce on hbase. 
> I've already apply this one to my local copy for my purpose, which is about time series
> Thanks.

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