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https://issues.apache.org/jira/browse/LUCENE-8331?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16490270#comment-16490270
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Simon Willnauer commented on LUCENE-8331:
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I thinks something like this can be helpful if you are working on a MP and/or
trying to debug an issue. I am not sure it needs to be a commandline util. I
would rather build the individual tools to plug stuff together as an API and
put most of the utils like creating the simulated segments into the base tests
class. I was going to do something similar to make testing simpler. I like the
idea. LUCENE-8330 will help doing this as well
> MergePolicy simulator utility
> -----------------------------
>
> Key: LUCENE-8331
> URL: https://issues.apache.org/jira/browse/LUCENE-8331
> Project: Lucene - Core
> Issue Type: New Feature
> Reporter: David Smiley
> Assignee: David Smiley
> Priority: Major
> Attachments: LUCENE-8331.patch
>
>
> This issue introduces a MergePolicy simulator utility to help evaluate the
> effectiveness of a MergePolicy. The simulator does not result in the actual
> indexing and merging of segments; instead it provides some dummy constructs
> to MergePolicy to evaluate its decisions. Therefore you can do simulation
> runs in little time.
> I'm not sure where it would live. Perhaps dev-tools, or in tests, or in
> benchmark?
> I mentioned this recently here:
> https://issues.apache.org/jira/browse/LUCENE-7976?focusedCommentId=16446985&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-16446985
>
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