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https://issues.apache.org/jira/browse/LUCENE-5175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13740186#comment-13740186
 ] 

Tom Burton-West edited comment on LUCENE-5175 at 8/14/13 9:09 PM:
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I downloaded the luceneutils benchmark suite and the enwiki data and tried to 
run the out-of-the-box demo.  I need to ask our sysadmins to upgrade python 
versions on our dev machines. 

Tom 
                
      was (Author: tburtonwest):
    I downloaded the luceneutils benchmark suite and the enwiki data and tried 
to run the default out-of-the-box demo that gets copied into localrun.py and 
got the errors below.   I suspect maybe the python version on our dev machine 
is old or I need to set up some env variables.

Is there anything obvious in the message below?   Should I be asking questions 
about benchmark on the dev list or is there a separate list for that?

Tom

python localrun.py 
Traceback (most recent call last):
  File "localrun.py", line 18, in ?
    from competition import Competition
  File "/htsolr/lss-dev/data/4/LuceneBench/bench/util/competition.py", line 19, 
in ?
    import searchBench
  File "/htsolr/lss-dev/data/4/LuceneBench/bench/util/searchBench.py", line 25, 
in ?
    import benchUtil
  File "/htsolr/lss-dev/data/4/LuceneBench/bench/util/benchUtil.py", line 761
    with open(fullLogFile, 'rb') as f:

                  
> Add parameter to lower-bound TF normalization for BM25 (for long documents)
> ---------------------------------------------------------------------------
>
>                 Key: LUCENE-5175
>                 URL: https://issues.apache.org/jira/browse/LUCENE-5175
>             Project: Lucene - Core
>          Issue Type: Improvement
>          Components: core/search
>            Reporter: Tom Burton-West
>            Priority: Minor
>         Attachments: LUCENE-5175.patch
>
>
> In the article "When Documents Are Very Long, BM25 Fails!" a fix for the 
> problem is documented.  There was a TODO note in BM25Similarity to add this 
> fix. I will attach a patch that implements the fix shortly.

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