: Here's my need : I'd like to log Solr Responses so as to achieve some
: business statistics.
: I'd like to report, as a daily/weekly/yearly/whateverly basis, the following
: KPIs :

...

: I think I'll soon get into performance issues, as you guess.
: Do you know a better approach ?

All of this information is currently in a (single) log message for each 
request (see the INFO msgs from SolrCore).  

If you are worried about the performance of recording this info in a DB in 
real time as the requests are processed, you can trivially crunch the logs 
in batch ever hour/day/week to compute your totals & averages.



-Hoss
http://www.lucidworks.com/

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