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Posted to dev@lucene.apache.org by "Shai Erera (JIRA)" <ji...@apache.org> on 2010/04/14 13:28:51 UTC
[jira] Commented: (LUCENE-2159) Tool to expand the index for
perf/stress testing.
[ https://issues.apache.org/jira/browse/LUCENE-2159?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12856845#action_12856845 ]
Shai Erera commented on LUCENE-2159:
------------------------------------
This looks like a nice tool. But all it does is create multiple copies of the same segment(s) right? So what exactly do you want to test with it? What worries me is that we'll be multiplying the lexicon, posting lists, statistics etc., therefore I'm not sure how reliable the tests will be (whatever they are), except for measuring things related to large number of segments (like merge performance). Am I right?
I also think this class better fits in benchmark rather than misc, as it's really for perf. testing/measurements and not as a generic utility ... You can create a Task out if it, like ExpandIndexTask which one can include in his algorithm.
> Tool to expand the index for perf/stress testing.
> -------------------------------------------------
>
> Key: LUCENE-2159
> URL: https://issues.apache.org/jira/browse/LUCENE-2159
> Project: Lucene - Java
> Issue Type: New Feature
> Components: contrib/*
> Affects Versions: 3.0
> Reporter: John Wang
> Attachments: ExpandIndex.java
>
>
> Sometimes it is useful to take a small-ish index and expand it into a large index with K segments for perf/stress testing.
> This tool does that. See attached class.
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