Hi Benjamin,
Yes it's like 10 seconds in islandora the same query, the query fired to
risearch is:
select $object $title $content from <#ri>
where ($object <fedora-model:label> $title
and $object <fedora-model:hasModel>
$content
and ($object
<fedora-rels-ext:isMemberOfCollection> <info:fedora/islandora:83>) and
$object <fedora-model:state> <info:fedora/fedora-system:def/model#Active>)
minus $content <mulgara:is>
<info:fedora/fedora-system:FedoraObject-3.0>
order by $title desc
1) The machine where is Fedora have 1GB of memory, is probably little? if i
took a look with command htop in bash, the memroy assigned to tomcat is
30.9%. How can i enlarge this value?
2) Currently being in development policies XAMCL are disabled.
3) adore-djatoka, but i dont use in this query
4) the log level is set to INFO, it is the minimal value, isn't it?
5) No
6) there are no errors in log file, yes i'm inclined so anything is wrong
configured, but i dont know what it is. The instalation of fedora is the
most simple
Thanks for your help!!
2013/10/1 Benjamin Armintor <[email protected]>
> Andrés:
> Is that the response time through Islandora, or simply from the Fedora
> object search interface? 10 seconds does sound quite slow. In general,
> there are some things to look for, like:
>
> 1. When you look at the Tomcat process Fedora is running in, does it
> appear to be consistently using all of its maximum allotted memory? If so,
> you may need to configure a larger heap.
>
> 2. Are there many XACML policies in effect for the request? Authorization
> checks are one of the most taxing parts of processing a request to Fedora,
> so minimizing the relevant policies (and attributes checked) will boost
> performance.
>
> 3. Are there extraneous filters or modules configured? Obviously extra
> chained processing will slow things down.
>
> 4. What is the log level configured for Fedora? The more fine-grained the
> logging, the more I/O overhead there will be. DEBUG logging is particularly
> onerous, but even INFO level logging produces a lot of output.
>
> 5. Are threads a contested resource for the Fedora process? This may be
> harder to ascertain without a profiler of some kind.
>
> 6. Is there any kind of warning or error indication in the logs? Your
> response time is pretty slow, so I'm inclined to think something is
> actually wrong more than inefficiently configured.
>
> Hope those ideas help!
>
> - Ben
>
>
>
>
> On Tue, Oct 1, 2013 at 4:21 AM, Andrés Campanario <
> [email protected]> wrote:
>
>> Hi,
>>
>> How can I optimize or improve the response times of Fedora Commons API?
>>
>> I'm using FCREPO 3.6.2, everything works perfectly, but a simple query
>> using API findObjets-A takes almost 10 seconds, just as if I use research.
>>
>> I Have Fedora Commons installed in one machine, mysql in another, and the
>> application developed in PHP where connect (using Islandora class) in a
>> third machine.
>>
>> Are there some tools like APC in JAVA and SPRING to improve TOMCAT
>> server response ?
>>
>> Thank you for your help!
>>
>>
>> --
>> *Andres Campanario*
>> http://www.andrescampanario.es
>> http://www.linkedin.com/in/andrescampanario
>>
>>
>>
>> ------------------------------------------------------------------------------
>> October Webinars: Code for Performance
>> Free Intel webinars can help you accelerate application performance.
>> Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most
>> from
>> the latest Intel processors and coprocessors. See abstracts and register >
>>
>> http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk
>> _______________________________________________
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>> [email protected]
>> https://lists.sourceforge.net/lists/listinfo/fedora-commons-users
>>
>>
>
>
> ------------------------------------------------------------------------------
> October Webinars: Code for Performance
> Free Intel webinars can help you accelerate application performance.
> Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most
> from
> the latest Intel processors and coprocessors. See abstracts and register >
> http://pubads.g.doubleclick.net/gampad/clk?id=60134791&iu=/4140/ostg.clktrk
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>
--
*Andres Campanario*
http://www.andrescampanario.es
http://www.linkedin.com/in/andrescampanario
------------------------------------------------------------------------------
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Free Intel webinars can help you accelerate application performance.
Explore tips for MPI, OpenMP, advanced profiling, and more. Get the most from
the latest Intel processors and coprocessors. See abstracts and register >
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