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https://issues.apache.org/jira/browse/HADOOP-5040?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12664987#action_12664987
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Ari Rabkin commented on HADOOP-5040:
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Can you clarify the scope of this issue?  What data should be indexed?

Is this different from the general problem of indexing data in sequence files 
in HDFS?  I have no idea if the general problem has been solved (e.g., by 
lucene), but it feels like something someone has hit before.

> Need index for chukwa sequence files
> ------------------------------------
>
>                 Key: HADOOP-5040
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5040
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: contrib/chukwa
>         Environment: Redhat EL 5.1 and Java 6
>            Reporter: Eric Yang
>            Assignee: Eric Yang
>
> Chukwa has ability to collect large volume of data, but the lack of index 
> prevents Chukwa front end to serve data straight from HDFS.  This jira is the 
> place holder for designing a indexing service for Chukwa.  The plan is to 
> create indexing service base on available software like lucene or katta.

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