[xwiki-devs] XWiki Scalability/Challenge Question

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Danilo Oliveira

22 Aug 2014 22 Aug '14

10:54 p.m.

Hello Devs, I am developing an application based on XWiki that is mapping, connecting, relating and graphical disposing movie information in order to make possible to the user explore their trailers. At the beginning with a light data set (<5k movies) the application was running well, but today I started to populate my database (MYSQL) and the application became unusable, the queries is taking more than 5 minutes to complete. Actually, it has more than 15k movies (1 movie = 1 doc) and I need to upload more 100k. I already have checked the cache and performance page but I don't know if they[1][2] solve my problem: I think that is a architecture challenge. My AS IS process is: -User insert a movie, -the application search for the movie and their related films based on its characteristics (a lot of joins and other algorithms) (bottleneck) -the application returns the results as a map; I am wondering if I could use the custom mapping[3] to solve my problem due the fact that the relationship information for each movie, in this first moment, don't need to change often. Each movie has X movies related, sorted by similarity. So, I could create some relationship algorithm that will run scheduled ( 1 time by week) and populate this new table .I am thinking to use dataframe panda of python to talk directlly with mysql and make data analysis, any other suggestion? So I would create a custom map to my relationship movie class, run the algorithm, populate the new table, so my TO BE would be: TO BE -user insert movie info; -simple select on the customtable "MoviesRelated"; -the application returns the results; I would appreciate some opinion. Thank you very much. [1]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances [2]http://extensions.xwiki.org/xwiki/bin/view/Extension/Cache+Module [3]http://platform.xwiki.org/xwiki/bin/view/DevGuide/CustomMapping Danilo -- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867

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Paul Libbrecht

22 Aug 22 Aug

11:11 p.m.

Danilo, have you checked the MySQL process list? I'd suspect something is hogging. For search, I'd recommend to leverage solr… but with an amount of customizations. There are some hooks in the solr-plugin, I believe. hope it helps. paul On 22 août 2014, at 22:54, Danilo Oliveira <daniloa.oliveira(a)gmail.com> wrote:

...

Danilo Oliveira

23 Aug 23 Aug

12:18 a.m.

you are alright Paul! One of my queries was hogging the DB. I will improve its logic... I will check the Solr api. Considering the performance terms, the SOLR works better than hibernate? Thanks Paul, you are the best. 2014-08-22 18:11 GMT-03:00 Paul Libbrecht <paul(a)hoplahup.net>et>:

...

Hello Devs, I am developing an application based on XWiki that is mapping,

connecting,

relating and graphical disposing movie information in order to make possible to the user explore their trailers. At the beginning with a light data set (<5k movies) the application was running well, but today I started to populate my database (MYSQL) and the application became unusable, the queries is taking more than 5 minutes to complete. Actually, it has more than 15k movies (1 movie = 1 doc) and I need to upload more 100k. I already have checked the cache and performance page but I don't know if they[1][2] solve my problem: I think that is a architecture challenge. My AS IS process is: -User insert a movie, -the application search for the movie and their related films based on

its

characteristics (a lot of joins and other algorithms) (bottleneck) -the application returns the results as a map; I am wondering if I could use the custom mapping[3] to solve my problem

due

the fact that the relationship information for each movie, in this first moment, don't need to change often. Each movie has X movies related,

sorted

by similarity. So, I could create some relationship algorithm that will

run

scheduled ( 1 time by week) and populate this new table .I am thinking to use dataframe panda of python to talk directlly with mysql and make data analysis, any other suggestion? So I would create a custom map to my relationship movie class, run the algorithm, populate the new table, so my TO BE would be: TO BE -user insert movie info; -simple select on the customtable "MoviesRelated"; -the application returns the results; I would appreciate some opinion. Thank you very much. [1]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances [2]http://extensions.xwiki.org/xwiki/bin/view/Extension/Cache+Module [3]http://platform.xwiki.org/xwiki/bin/view/DevGuide/CustomMapping Danilo -- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867 _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867

O.J. Sousa Rodrigues

8:46 a.m.

Wouldn't this be a perfect case for a NoSQL-DB like Neo4J? Am 22.08.2014 23:13 schrieb "Paul Libbrecht" <paul(a)hoplahup.net>et>:

...

Hello Devs, I am developing an application based on XWiki that is mapping,

connecting,

its

characteristics (a lot of joins and other algorithms) (bottleneck) -the application returns the results as a map; I am wondering if I could use the custom mapping[3] to solve my problem

due

the fact that the relationship information for each movie, in this first moment, don't need to change often. Each movie has X movies related,

sorted

by similarity. So, I could create some relationship algorithm that will

run

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Danilo Oliveira

9:33 p.m.

Hello, As I mentioned, I discovered that the queries that are hogging my DB are similar to: '102', 'xwiki', 'localhost:52614', 'xwiki', 'Query', '372', 'Creating sort index', 'select xwikidocum0_.XWD_FULLNAME as col_0_0_ from xwikidoc xwikidocum0_ cross join xwikiobjects baseobject1_ cross join xwikilists dbstringli2_ inner join xwikiproperties dbstringli2_1_ on dbstringli2_.XWL_ID=dbstringli2_1_.XWP_ID and dbstringli2_.XWL_NAME=dbstringli2_1_.XWP_NAME inner join xwikilistitems list3_ on dbstringli2_.XWL_ID=list3_.XWL_ID and dbstringli2_.XWL_NAME=list3_.XWL_NAME where (xwikidocum0_.XWD_HIDDEN<>1 oy xwikidocum0_.XWD_HIDDEN is null) and baseobject1_.XWO_CLASSNAME=\'XWiki.TagClass\' and baseobject1_.XWO_NAME=xwikidocum0_.XWD_FULLNAME and baseobject1_.XWO_ID=dbstringli2_.XWL_ID and dbstringli2_.XWL_NAME=\'tags\' and lower(list3_.XWL_VALUE)=lower(\'shock-rock\') order by xwikidocum0_.XWD_FULLNAME' Anyone knows what is the component that is responsible for this query? for each new tag, this kind of query is executed to create sort index? Thanks 2014-08-23 3:46 GMT-03:00 O.J. Sousa Rodrigues <osoriojaques(a)gmail.com>om>:

...

Wouldn't this be a perfect case for a NoSQL-DB like Neo4J? Am 22.08.2014 23:13 schrieb "Paul Libbrecht" <paul(a)hoplahup.net>et>:

Hello Devs, I am developing an application based on XWiki that is mapping,

connecting, > relating and graphical disposing movie information in order to make > possible to the user explore their trailers. > > At the beginning with a light data set (<5k movies) the application was > running well, but today I started to populate my database (MYSQL) and

the

> application became unusable, the queries is taking more than 5 minutes

> complete. Actually, it has more than 15k movies (1 movie = 1 doc) and I > need to upload more 100k. > > I already have checked the cache and performance page but I don't know

they[1][2] solve my problem: I think that is a architecture challenge. My AS IS process is: -User insert a movie, -the application search for the movie and their related films based on

its

characteristics (a lot of joins and other algorithms) (bottleneck) -the application returns the results as a map; I am wondering if I could use the custom mapping[3] to solve my problem

due > the fact that the relationship information for each movie, in this

first

moment, don't need to change often. Each movie has X movies related,

sorted

by similarity. So, I could create some relationship algorithm that will

run > scheduled ( 1 time by week) and populate this new table .I am thinking

> use dataframe panda of python to talk directlly with mysql and make

data

analysis, any other suggestion? So I would create a custom map to my relationship movie class, run the algorithm, populate the new table, so my TO BE would be: TO BE -user insert movie info; -simple select on the customtable "MoviesRelated"; -the application returns the results; I would appreciate some opinion. Thank you very much. [1]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances [2]http://extensions.xwiki.org/xwiki/bin/view/Extension/Cache+Module [3]http://platform.xwiki.org/xwiki/bin/view/DevGuide/CustomMapping Danilo -- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867 _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867

Clemens Klein-Robbenhaar

26 Aug 26 Aug

9:33 a.m.

This Query looks much like it is generated by the tag service when searching for documents with a given tag (the code is in class TagQueryUtils, method getDocumentsWithTag, in the xwiki-platform-core/xwiki-platform-tag/xwiki-platform-tag-api module) This query might be triggered by any kind of UI element (Panel, macro etc.) I do not think it is used to update any search index or the like. Instead it is used on some pages, e.g. Main.Tags when clicking on a tag to see its list of documents. I wonder why this query takes so long. Even a 100K docs should not be that much (I mean, 5 minutes query time, huh?) Is there any chance some binary data of the movie objects or the like ended up in the xwikilistitems table or any other table used in the query? Clemens

...

Wouldn't this be a perfect case for a NoSQL-DB like Neo4J? Am 22.08.2014 23:13 schrieb "Paul Libbrecht" <paul(a)hoplahup.net>et>:

Hello Devs, I am developing an application based on XWiki that is mapping,

the

> application became unusable, the queries is taking more than 5 minutes

> complete. Actually, it has more than 15k movies (1 movie = 1 doc) and I > need to upload more 100k. > > I already have checked the cache and performance page but I don't know

they[1][2] solve my problem: I think that is a architecture challenge. My AS IS process is: -User insert a movie, -the application search for the movie and their related films based on

its

characteristics (a lot of joins and other algorithms) (bottleneck) -the application returns the results as a map; I am wondering if I could use the custom mapping[3] to solve my problem

due > the fact that the relationship information for each movie, in this

first

moment, don't need to change often. Each movie has X movies related,

sorted

by similarity. So, I could create some relationship algorithm that will

run > scheduled ( 1 time by week) and populate this new table .I am thinking

> use dataframe panda of python to talk directlly with mysql and make

data

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

mit freundlichen Grüßen Clemens Klein-Robbenhaar -- Clemens Klein-Robbenhaar Software Development EsPresto AG Breite Str. 30-31 10178 Berlin/Germany Tel: +49.(0)30.90 226.763 Fax: +49.(0)30.90 226.760 robbenhaar(a)espresto.com HRB 77554 B - Berlin-Charlottenburg Vorstand: Maya Biersack, Peter Biersack Vorsitzender des Aufsichtsrats: Dipl.-Wirtsch.-Ing. Winfried Weber Zertifiziert nach ISO 9001:2008

Danilo Oliveira

11:33 p.m.

Hello Clemens, I have checked the XWIKILIST and I noticed that my genre, country and language lists of the movies, that are defined in my movieClass, are recorded in this table. Do you think that is the cause of the slowness? But I discovered who is generating these queries, the GoogleBot see: 66.249.69.197 - - [26/Aug/2014:18:07:09 -0300] "GET /bin/view/Main/Tags?do=viewTag&tag=tang-breakfast-drink HTTP/ There are googlebots requisitions trying to delete my tags too... Well. I am blocking them according this doc[0] Rodrigues, I accessed the neo4j site. This db looks like very interesting and I think that is applicable to my application. However my app is in proof of concept phase, so actually XWiki attend my necessities. Absolutely, I will consider it if my application grows. thanks for the tip! Well, I changed my queries to SOLR and now my application is working perfectly, even better than at the beginning. But I have just one more necessity. Random Query. I checked in SOLR how to make a random query and I found this article [2] And on the "Additional Configuration" section of the article, you can read that we need the two parameters below in the schema configuration. However In schema.xml of XWiki, we just have the first [1] <fieldType name="random" class="solr.RandomSortField" indexed="true" /> <dynamicField name="random_*" type="random" /> I am not expert on SOLR, but if I just add the second parameter will it work or Do I need to worry about other things? [0]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances [1] https://github.com/xwiki-contrib/xwiki-platform-solr/blob/master/solr/conf/… [2] http://solr.pl/en/2013/04/02/random-documents-from-result-set-giveaway-resu… Thanks everyone for the attention! Danilo 2014-08-26 4:33 GMT-03:00 Clemens Klein-Robbenhaar < c.robbenhaar(a)espresto.com>gt;:

...

Hello, As I mentioned, I discovered that the queries that are hogging my DB are similar to: '102', 'xwiki', 'localhost:52614', 'xwiki', 'Query', '372', 'Creating

sort

index', 'select xwikidocum0_.XWD_FULLNAME as col_0_0_ from xwikidoc xwikidocum0_ cross join xwikiobjects baseobject1_ cross join xwikilists dbstringli2_ inner join xwikiproperties dbstringli2_1_ on dbstringli2_.XWL_ID=dbstringli2_1_.XWP_ID and dbstringli2_.XWL_NAME=dbstringli2_1_.XWP_NAME inner join xwikilistitems list3_ on dbstringli2_.XWL_ID=list3_.XWL_ID and dbstringli2_.XWL_NAME=list3_.XWL_NAME where (xwikidocum0_.XWD_HIDDEN<>1

xwikidocum0_.XWD_HIDDEN is null) and baseobject1_.XWO_CLASSNAME=\'XWiki.TagClass\' and baseobject1_.XWO_NAME=xwikidocum0_.XWD_FULLNAME and baseobject1_.XWO_ID=dbstringli2_.XWL_ID and

dbstringli2_.XWL_NAME=\'tags\'

and lower(list3_.XWL_VALUE)=lower(\'shock-rock\') order by xwikidocum0_.XWD_FULLNAME' Anyone knows what is the component that is responsible for this query?

for

each new tag, this kind of query is executed to create sort index? Thanks 2014-08-23 3:46 GMT-03:00 O.J. Sousa Rodrigues <osoriojaques(a)gmail.com>om>:

Wouldn't this be a perfect case for a NoSQL-DB like Neo4J? Am 22.08.2014 23:13 schrieb "Paul Libbrecht" <paul(a)hoplahup.net>et>: > Danilo, > > have you checked the MySQL process list? > I'd suspect something is hogging. > For search, I'd recommend to leverage solr… but with an amount of > customizations. There are some hooks in the solr-plugin, I believe. > > hope it helps. > > paul > > > On 22 août 2014, at 22:54, Danilo Oliveira <daniloa.oliveira(a)gmail.com

>> wrote: >> >>> Hello Devs, >>> >>> I am developing an application based on XWiki that is mapping, >> connecting, >>> relating and graphical disposing movie information in order to make >>> possible to the user explore their trailers. >>> >>> At the beginning with a light data set (<5k movies) the application

was

>>> running well, but today I started to populate my database (MYSQL) and > the >>> application became unusable, the queries is taking more than 5 minutes > to >>> complete. Actually, it has more than 15k movies (1 movie = 1 doc) and

>>> need to upload more 100k. >>> >>> I already have checked the cache and performance page but I don't know > if >>> they[1][2] solve my problem: >>> I think that is a architecture challenge. >>> >>> My AS IS process is: >>> -User insert a movie, >>> -the application search for the movie and their related films based on >> its >>> characteristics (a lot of joins and other algorithms) (bottleneck) >>> -the application returns the results as a map; >>> >>> I am wondering if I could use the custom mapping[3] to solve my

problem

>> due >>> the fact that the relationship information for each movie, in this > first >>> moment, don't need to change often. Each movie has X movies related, >> sorted >>> by similarity. So, I could create some relationship algorithm that

will

run > scheduled ( 1 time by week) and populate this new table .I am thinking

> use dataframe panda of python to talk directlly with mysql and make

data

> analysis, any other suggestion? > > So I would create a custom map to my relationship movie class, run the > algorithm, populate the new table, so my TO BE would be: > > TO BE > -user insert movie info; > -simple select on the customtable "MoviesRelated"; > -the application returns the results; > > I would appreciate some opinion. Thank you very much. > > [1]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances > [2]http://extensions.xwiki.org/xwiki/bin/view/Extension/Cache+Module > [3]http://platform.xwiki.org/xwiki/bin/view/DevGuide/CustomMapping > > Danilo > -- > Danilo Amaral de Oliveira > Engenheiro de Computação > celular (32) 9111 - 6867 > _______________________________________________ > devs mailing list > devs(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867

Paul Libbrecht

11:54 p.m.

Hello Danilo, against GoogleBot trying all these fancy (linked) actions, I'd suggest you make use of Robots.txt. We've made almost all actions away from robots using it: http://www.curriki.org/robots.txt Of course, you can also write apache rewrite rules… this is finer grained (even checking the identity of the client). On the solr random queries, I am a bit surprised your scenario works… what random value would you take? Is that random only for sorting and you use the default query (*:*)? I guess that would work (it's not a random query then, it's a random ordering, something you don't want the users to intentionally formulate I think). paul On 26 août 2014, at 23:33, Danilo Oliveira <daniloa.oliveira(a)gmail.com> wrote:

...

Hello, As I mentioned, I discovered that the queries that are hogging my DB are similar to: '102', 'xwiki', 'localhost:52614', 'xwiki', 'Query', '372', 'Creating

sort

xwikidocum0_.XWD_HIDDEN is null) and baseobject1_.XWO_CLASSNAME=\'XWiki.TagClass\' and baseobject1_.XWO_NAME=xwikidocum0_.XWD_FULLNAME and baseobject1_.XWO_ID=dbstringli2_.XWL_ID and

dbstringli2_.XWL_NAME=\'tags\'

and lower(list3_.XWL_VALUE)=lower(\'shock-rock\') order by xwikidocum0_.XWD_FULLNAME' Anyone knows what is the component that is responsible for this query?

for

each new tag, this kind of query is executed to create sort index? Thanks 2014-08-23 3:46 GMT-03:00 O.J. Sousa Rodrigues <osoriojaques(a)gmail.com>om>:

was

problem

will

> run >> scheduled ( 1 time by week) and populate this new table .I am thinking to >> use dataframe panda of python to talk directlly with mysql and make data >> analysis, any other suggestion? >> >> So I would create a custom map to my relationship movie class, run the >> algorithm, populate the new table, so my TO BE would be: >> >> TO BE >> -user insert movie info; >> -simple select on the customtable "MoviesRelated"; >> -the application returns the results; >> >> I would appreciate some opinion. Thank you very much. >> >> [1]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances >> [2]http://extensions.xwiki.org/xwiki/bin/view/Extension/Cache+Module >> [3]http://platform.xwiki.org/xwiki/bin/view/DevGuide/CustomMapping >> >> Danilo >> -- >> Danilo Amaral de Oliveira >> Engenheiro de Computação >> celular (32) 9111 - 6867 >> _______________________________________________ >> devs mailing list >> devs(a)xwiki.org >> http://lists.xwiki.org/mailman/listinfo/devs > > _______________________________________________ > devs mailing list > devs(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs > _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867 _______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

Danilo Oliveira

28 Aug 28 Aug

4:56 a.m.

Hello Paul, Thanks for the robot link, I will use it as reference! As you said, the random is a sort random, so in order to make my scenario work I need to do exactly what you have said= default query with sort random. Or follow the tutorial that I provided, the guy show how to use a random index in a random dynamic field(defined in the schema.xml) to generate a random value. Anyway, in this case after to try solr I am using HQL because this query is returning in a short time and it is not necessary to complicate simple problems =) thanks all. 2014-08-26 18:54 GMT-03:00 Paul Libbrecht <paul(a)hoplahup.net>et>:

...

think

that is applicable to my application. However my app is in proof of

concept

phase, so actually XWiki attend my necessities. Absolutely, I will

consider

it if my application grows. thanks for the tip! Well, I changed my queries to SOLR and now my application is working perfectly, even better than at the beginning. But I have just one more necessity. Random Query. I checked in SOLR how to make a random query and I found this article [2] And on the "Additional Configuration" section of the article, you can

read

that we need the two parameters below in the schema configuration.

However

In schema.xml of XWiki, we just have the first [1] <fieldType name="random" class="solr.RandomSortField" indexed="true" /> <dynamicField name="random_*" type="random" /> I am not expert on SOLR, but if I just add the second parameter will it work or Do I need to worry about other things? [0]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances [1]

https://github.com/xwiki-contrib/xwiki-platform-solr/blob/master/solr/conf/…

[2]

http://solr.pl/en/2013/04/02/random-documents-from-result-set-giveaway-resu…

Thanks everyone for the attention! Danilo 2014-08-26 4:33 GMT-03:00 Clemens Klein-Robbenhaar < c.robbenhaar(a)espresto.com>gt;: > > This Query looks much like it is generated by the tag service when > searching > for documents with a given tag (the code is in class TagQueryUtils,

method

> getDocumentsWithTag, in the > xwiki-platform-core/xwiki-platform-tag/xwiki-platform-tag-api > module) > > This query might be triggered by any kind of UI element (Panel, macro

etc.)

> I do not think it is used to update any search index or the like. > Instead it is used on some pages, e.g. Main.Tags when clicking on a tag

> see its list > of documents. > > I wonder why this query takes so long. Even a 100K docs should not be > that much > (I mean, 5 minutes query time, huh?) Is there any chance some binary

data

> of the movie > objects or the like ended up in the xwikilistitems table or any other > table used in the query? > > Clemens > >> Hello, >> >> As I mentioned, I discovered that the queries that are hogging my DB

are

similar to: '102', 'xwiki', 'localhost:52614', 'xwiki', 'Query', '372', 'Creating

sort

xwikidocum0_.XWD_HIDDEN is null) and baseobject1_.XWO_CLASSNAME=\'XWiki.TagClass\' and baseobject1_.XWO_NAME=xwikidocum0_.XWD_FULLNAME and baseobject1_.XWO_ID=dbstringli2_.XWL_ID and

dbstringli2_.XWL_NAME=\'tags\'

and lower(list3_.XWL_VALUE)=lower(\'shock-rock\') order by xwikidocum0_.XWD_FULLNAME' Anyone knows what is the component that is responsible for this query?

for > each new tag, this kind of query is executed to create sort index? > > Thanks > > > 2014-08-23 3:46 GMT-03:00 O.J. Sousa Rodrigues <osoriojaques(a)gmail.com

: >> >>> Wouldn't this be a perfect case for a NoSQL-DB like Neo4J? >>> Am 22.08.2014 23:13 schrieb "Paul Libbrecht" <paul(a)hoplahup.net>et>: >>> >>>> Danilo, >>>> >>>> have you checked the MySQL process list? >>>> I'd suspect something is hogging. >>>> For search, I'd recommend to leverage solr… but with an amount of >>>> customizations. There are some hooks in the solr-plugin, I believe. >>>> >>>> hope it helps. >>>> >>>> paul >>>> >>>> >>>> On 22 août 2014, at 22:54, Danilo Oliveira <

daniloa.oliveira(a)gmail.com

>> >>>> wrote: >>>> >>>>> Hello Devs, >>>>> >>>>> I am developing an application based on XWiki that is mapping, >>>> connecting, >>>>> relating and graphical disposing movie information in order to make >>>>> possible to the user explore their trailers. >>>>> >>>>> At the beginning with a light data set (<5k movies) the application > was >>>>> running well, but today I started to populate my database (MYSQL)

and

>>> the >>>>> application became unusable, the queries is taking more than 5

minutes

>>> to >>>>> complete. Actually, it has more than 15k movies (1 movie = 1 doc)

and

> I >>>>> need to upload more 100k. >>>>> >>>>> I already have checked the cache and performance page but I don't

know

>>> if >>>>> they[1][2] solve my problem: >>>>> I think that is a architecture challenge. >>>>> >>>>> My AS IS process is: >>>>> -User insert a movie, >>>>> -the application search for the movie and their related films based

>>>> its >>>>> characteristics (a lot of joins and other algorithms) (bottleneck) >>>>> -the application returns the results as a map; >>>>> >>>>> I am wondering if I could use the custom mapping[3] to solve my > problem >>>> due >>>>> the fact that the relationship information for each movie, in this >>> first >>>>> moment, don't need to change often. Each movie has X movies related, >>>> sorted >>>>> by similarity. So, I could create some relationship algorithm that > will >>>> run >>>>> scheduled ( 1 time by week) and populate this new table .I am

thinking

>>> to >>>>> use dataframe panda of python to talk directlly with mysql and make >>> data >>>>> analysis, any other suggestion? >>>>> >>>>> So I would create a custom map to my relationship movie class, run

the

>>>>> algorithm, populate the new table, so my TO BE would be: >>>>> >>>>> TO BE >>>>> -user insert movie info; >>>>> -simple select on the customtable "MoviesRelated"; >>>>> -the application returns the results; >>>>> >>>>> I would appreciate some opinion. Thank you very much. >>>>> >>>>> [1]http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Performances >>>>> [2]

http://extensions.xwiki.org/xwiki/bin/view/Extension/Cache+Module

>>> [3]http://platform.xwiki.org/xwiki/bin/view/DevGuide/CustomMapping >>> >>> Danilo >>> -- >>> Danilo Amaral de Oliveira >>> Engenheiro de Computação >>> celular (32) 9111 - 6867 >>> _______________________________________________ >>> devs mailing list >>> devs(a)xwiki.org >>> http://lists.xwiki.org/mailman/listinfo/devs >> >> _______________________________________________ >> devs mailing list >> devs(a)xwiki.org >> http://lists.xwiki.org/mailman/listinfo/devs >> > _______________________________________________ > devs mailing list > devs(a)xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs >

_______________________________________________ devs mailing list devs(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/devs

-- Danilo Amaral de Oliveira Engenheiro de Computação celular (32) 9111 - 6867

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Clemens Klein-Robbenhaar
Danilo Oliveira
O.J. Sousa Rodrigues
Paul Libbrecht