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From Koji Sekiguchi <k...@r.email.ne.jp>
Subject Re: about cache
Date Fri, 27 Apr 2007 02:17:16 GMT
I don't understand your question very well..

If you follow the steps in my previous mail,
you *can* see your cache evictions come to positive number.
(I thought you wanted to see it)

With your production system, you have to set
the proper size rather than 1.

regards,

Koji


James liu wrote:
> u close queryResultCache if u set its size=1
>
> hitratio will be zero if u do that.
>
>
> i think these data when u test, is it right?
>
>
>
> 2007/4/27, Koji Sekiguchi <koji@r.email.ne.jp>:
>>
>> These numbers are a part of our real data.
>> If you want to see positive number for evictions,
>> you can:
>>
>> 1. set queryResultCache size to 1
>> 2. restart Solr
>> 3. issue two *unique* queries
>> 4. see admin page
>>
>> At step 4, you should see hitratio: 0.00 and evictions: 1.
>>
>> Thanks,
>>
>> Koji
>>
>> James liu wrote:
>> > These data is true ? hitration is 0??
>> >
>> > size=1?
>> >
>> > how do u test it?
>> >
>> > i think these data is impossible.
>> >
>> >
>> >
>> > 2007/4/27, Koji Sekiguchi <koji@r.email.ne.jp>:
>> >>
>> >> > if u try it. and u find it always 0
>> >>
>> >> Are you talking about evistions?
>> >> If you are talking about evictions and it is always zero,
>> >> it shows that you have enough room in your cache in comparison to 
>> your
>> >> load.
>> >>
>> >> By way of example, when we did load test for "size==1 cache", we 
>> could
>> >> see:
>> >>
>> >> - queryResultCache-
>> >> lookups: 78626
>> >> hits: 72
>> >> hitratio: 0.00
>> >> inserts: 78554
>> >> evictioins: 1042748
>> >> size: 1
>> >>
>> >> Hope this helps,
>> >>
>> >> Koji
>> >>
>> >>
>> >> James liu wrote:
>> >> > if u try it. and u find it always 0
>> >> >
>> >> > 2007/4/26, Koji Sekiguchi <koji@r.email.ne.jp>:
>> >> >>
>> >> >> I think cumulative_ counters are the total count of successive
>> >> >> SolrIndexSearchers' cache.
>> >> >> For example, you have a registered searcher and you see:
>> >> >>
>> >> >> inserts: 1
>> >> >> cumulative_inserts: 1
>> >> >>
>> >> >> Then you update your index and do commit, you got a new searcher.
>> >> >> At this moment, non cumulative_ counters come to zero.
>> >> >> Then you search something and you could see:
>> >> >>
>> >> >> inserts: 1
>> >> >> cumulative_inserts: 2
>> >> >>
>> >> >> And if you have enough room for inserting new entries, evictions
>> >> >> might be zero. To see none zero evictions, you can set
>> >> >> a small size for queryResultCache and try to issue many unique
>> >> queries.
>> >> >> For example, set the size to 1, then issue 2 unique queries, then
>> >> >> you can see evictions: 1.
>> >> >>
>> >> >> regards,
>> >> >>
>> >> >> Koji
>> >> >>
>> >> >>
>> >> >> James liu wrote:
>> >> >> > now i use admin gui to moniter cache config
>> >> >> >
>> >> >> > i don't know the difference betwin cumulative_ and no
>> *cumulative_*
>> >> >> > ,,,like
>> >> >> > cumulative_inserts and inserts
>> >> >> >
>> >> >> > and i find evictions always show zero....i m curious when
it 
>> will
>> >> >> > change and
>> >> >> > its meaning
>> >> >> >
>> >> >>
>> >> >>
>> >> >
>> >> >
>> >>
>> >>
>> >
>> >
>>
>>
>
>


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