Thanks a lot, this totally makes sense but it was hard to figure this out.
cheers
--
Renaud Delbru
On 28/01/11 20:39, cbenn...@job.com wrote:
Ooops,
I meant NOW/DAY
-----Original Message-----
From: cbenn...@job.com [mailto:cbenn...@job.com]
Sent: Friday, January 28, 2011 3:37 PM
To: solr-user@lucene.apache.org
Subject: RE: Filter Query, Filter Cache and Hit Ratio
Hi,
You've used NOW in the range query which will give a date/time accurate
to
the millisecond, try using NOW\DAY
Colin.
-----Original Message-----
From: Renaud Delbru [mailto:renaud.del...@deri.org]
Sent: Friday, January 28, 2011 2:22 PM
To: solr-user@lucene.apache.org
Subject: Filter Query, Filter Cache and Hit Ratio
Hi,
I am looking for some more information on how the filter cache is
working, and how the hit are incremented.
We are using filter queries for certain predefined value, such as the
timestamp:[2011-01-21T00:00:00Z+TO+NOW] (which is the current day).
From
what I understand from the documentation:
"the filter cache stores the results of any filter queries ("fq"
parameters) that Solr is explicitly asked to execute. (Each filter is
executed and cached separately. When it's time to use them to limit
the
number of results returned by a query, this is done using set
intersections.)"
So, we were imagining that is two consecutive queries (as the one
above)
was using the same timestamp filter query, the second query will take
advantage of the filter cache, and we would see the number of hits
increasing (hit on the cached timestamp filter query) . However, this
is
not the case, the number of hits on the filter cache does not
increase
and stays very low. Is it normal ?
INFO: [] webapp=/siren path=/select
params={wt=javabin&rows=0&version=2&fl=id,score&start=0&q=*:*&isShard=t
rue&fq=timestamp:[2011-01-
21T00:00:00Z+TO+NOW]&fq=domain:my.wordpress.com&fsv=true}
hits=0 status=0 QTime=139
INFO: [] webapp=/siren path=/select
params={wt=javabin&rows=0&version=2&fl=id,score&start=0&q=*:*&isShard=t
rue&fq=timestamp:[2011-01-
21T00:00:00Z+TO+NOW]&fq=domain:syours.wordpress.com&fsv=true}
hits=0 status=0 QTime=138
--
Renaud Delbru
