[jira] [Commented] (HBASE-5626) Compactions simulator tool for proofing algorithms

["Nitish Upreti (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HBASE-5626?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14067807#comment-14067807 ] 

Nitish Upreti commented on HBASE-5626:
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I am a newbie (student), learning about HBase and want to get started contributing to the project. I have been scanning through the HBase "noob" tag and found this issue interesting to work on. As this issue was last updated on 24/Jan/13 21:51, is the community still interested in this Task? 

I understand the overall concepts of log-structured merge tree and reducing the maximum number of disk seeks needed by compaction. I also understand how HBase has pluggable a compaction component  where we can exploit performance benefits by knowing our data and request patterns in depth.

What are the relevant packages / source files / API References I should look into for this task? Any general pointers from the community for working on this task will be of great help. :)

> Compactions simulator tool for proofing algorithms
> --------------------------------------------------
>
>                 Key: HBASE-5626
>                 URL: https://issues.apache.org/jira/browse/HBASE-5626
>             Project: HBase
>          Issue Type: Task
>            Reporter: stack
>            Priority: Minor
>              Labels: noob
>         Attachments: cf_compact.py
>
>
> A tool to run compaction simulations would be a nice to have.   We could use it to see how well an algo ran under different circumstances loaded w/ different value types with different rates of flushes and splits, etc. HBASE-2462 had one (see in patch).  Or we could try doing it using something like this: http://en.wikipedia.org/wiki/Discrete_event_simulation



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