[xwiki-devs] Frrequently AJAX request caused PernGen Exception OutOfMemory
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this: $.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } }); And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is <http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg> Please help! I don't understand how xwiki works on this. Thank in advanced. -- View this message in context: http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex... Sent from the XWiki- Dev mailing list archive at Nabble.com.
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros. On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote:
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this:
$.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } });
And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is <http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
Please help! I don't understand how xwiki works on this.
Thank in advanced.
-- View this message in context: http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex... Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened? 2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros.
On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote:
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this:
$.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } });
And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is < http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
Please help! I don't understand how xwiki works on this.
Thank in advanced.
-- View this message in context: http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex... Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân======
Well without changing your script all I can suggest is to allocate more permgen to java using -XX:MaxPermSize=<enough memory>M On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros.
On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote:
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this:
$.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } });
And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is < http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
Please help! I don't understand how xwiki works on this.
Thank in advanced.
-- View this message in context: http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex... Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.* def data = [] // a list contain data def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close() // For GC dbConn = null gmongoObject = null // Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString() // For GC slurper = null builder = null {{/groovy}} 2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Well without changing your script all I can suggest is to allocate more permgen to java using
-XX:MaxPermSize=<enough memory>M
On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros.
On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote:
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this:
$.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } });
And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is <
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
Please help! I don't understand how xwiki works on this.
Thank in advanced.
-- View this message in context:
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân======
Your issue may be caused by @Grab, that download and load jars into the permgen. On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <lequan.moon@gmail.com> wrote:
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.*
def data = [] // a list contain data
def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close()
// For GC dbConn = null gmongoObject = null
// Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString()
// For GC slurper = null builder = null {{/groovy}}
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Well without changing your script all I can suggest is to allocate more permgen to java using
-XX:MaxPermSize=<enough memory>M
On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros.
On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote:
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this:
$.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } });
And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is <
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
Please help! I don't understand how xwiki works on this.
Thank in advanced.
-- View this message in context:
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne
Thanks. But now I don't know any other way to get and access MongoDB in xwiki. Any links or documents? 2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Your issue may be caused by @Grab, that download and load jars into the permgen.
On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <lequan.moon@gmail.com> wrote:
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.*
def data = [] // a list contain data
def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close()
// For GC dbConn = null gmongoObject = null
// Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString()
// For GC slurper = null builder = null {{/groovy}}
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Well without changing your script all I can suggest is to allocate more permgen to java using
-XX:MaxPermSize=<enough memory>M
On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros.
On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote:
Hi, I'm making an application that make an AJAX request frequently from page to page in xwiki. About 1 per 10s The request look like this:
$.ajax({ type: "GET", crossDomain: true, url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", dataType: 'text', data: data2send, success: function(result) {...}, error: function(xhr, status, error) { console.log(error) console.log(status) console.log(xhr) } });
And respone is simple as a text or something like a JSON Map, List. I took a look at jconsole and here it is <
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
Please help! I don't understand how xwiki works on this.
Thank in advanced.
-- View this message in context:
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
Sent from the XWiki- Dev mailing list archive at Nabble.com. _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân======
You could install it as extension so that it's not loaded with each script. Go you admin, Add Extension and use advanced search with id com.gmongo:gmongo and version 1.0 (or any other version you want). Another possibility is to download gmongo and MongoDB Java Driver jars and put them into /WEB-INF/lib/. On Thu, Sep 26, 2013 at 10:17 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thanks. But now I don't know any other way to get and access MongoDB in xwiki. Any links or documents?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Your issue may be caused by @Grab, that download and load jars into the permgen.
On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <lequan.moon@gmail.com> wrote:
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.*
def data = [] // a list contain data
def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close()
// For GC dbConn = null gmongoObject = null
// Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString()
// For GC slurper = null builder = null {{/groovy}}
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Well without changing your script all I can suggest is to allocate more permgen to java using
-XX:MaxPermSize=<enough memory>M
On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
I doubt it has anything to do with the request itself, it's probably more related to what your page is doing. From what I understand your page create directly or indirectly new classes. Note that most script languages compile the script into a new Java class before executing it so if you execute a lot of very big scripts at the same time it can probably be pretty costy for the permgen. Something else that could be costy is if you load a jar in this page for example with the "jars" property of script macros.
On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon <lequan.moon@gmail.com> wrote: > Hi, > I'm making an application that make an AJAX request frequently from page to > page in xwiki. > About 1 per 10s > The request look like this: > > $.ajax({ > type: "GET", > crossDomain: true, > url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", > dataType: 'text', > data: data2send, > success: function(result) {...}, > error: function(xhr, status, error) { > console.log(error) > console.log(status) > console.log(xhr) > } > }); > > And respone is simple as a text or something like a JSON Map, List. > I took a look at jconsole and here it is > <
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
> > Please help! I don't understand how xwiki works on this. > > Thank in advanced. > > > > > -- > View this message in context:
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
> Sent from the XWiki- Dev mailing list archive at Nabble.com. > _______________________________________________ > devs mailing list > devs@xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne
Thank you. I'll try it. 2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
You could install it as extension so that it's not loaded with each script. Go you admin, Add Extension and use advanced search with id com.gmongo:gmongo and version 1.0 (or any other version you want).
Another possibility is to download gmongo and MongoDB Java Driver jars and put them into /WEB-INF/lib/.
On Thu, Sep 26, 2013 at 10:17 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thanks. But now I don't know any other way to get and access MongoDB in xwiki. Any links or documents?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Your issue may be caused by @Grab, that download and load jars into the permgen.
On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <lequan.moon@gmail.com> wrote:
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.*
def data = [] // a list contain data
def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close()
// For GC dbConn = null gmongoObject = null
// Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString()
// For GC slurper = null builder = null {{/groovy}}
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Well without changing your script all I can suggest is to allocate more permgen to java using
-XX:MaxPermSize=<enough memory>M
On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank you It's true that the more script responing page processes, the more classes are loaded. Is there anyway to prevent OutOfmemory Exception happened?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
> I doubt it has anything to do with the request itself, it's probably > more related to what your page is doing. From what I understand your > page create directly or indirectly new classes. Note that most script > languages compile the script into a new Java class before executing it > so if you execute a lot of very big scripts at the same time it can > probably be pretty costy for the permgen. Something else that could be > costy is if you load a jar in this page for example with the "jars" > property of script macros. > > On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon < lequan.moon@gmail.com> > wrote: > > Hi, > > I'm making an application that make an AJAX request frequently from page > to > > page in xwiki. > > About 1 per 10s > > The request look like this: > > > > $.ajax({ > > type: "GET", > > crossDomain: true, > > url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", > > dataType: 'text', > > data: data2send, > > success: function(result) {...}, > > error: function(xhr, status, error) { > > console.log(error) > > console.log(status) > > console.log(xhr) > > } > > }); > > > > And respone is simple as a text or something like a JSON Map, List. > > I took a look at jconsole and here it is > > < >
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
> > > > Please help! I don't understand how xwiki works on this. > > > > Thank in advanced. > > > > > > > > > > -- > > View this message in context: >
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
> > Sent from the XWiki- Dev mailing list archive at Nabble.com. > > _______________________________________________ > > devs mailing list > > devs@xwiki.org > > http://lists.xwiki.org/mailman/listinfo/devs > > > > -- > Thomas Mortagne > _______________________________________________ > devs mailing list > devs@xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs >
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân======
Thank Thomas. The problem is much more smaller now. Still I need a long-term test for sure but thank a lot. We can close this topic. 2013/9/26 Quân Lê <lequan.moon@gmail.com>
Thank you. I'll try it.
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
You could install it as extension so that it's not loaded with each script. Go you admin, Add Extension and use advanced search with id com.gmongo:gmongo and version 1.0 (or any other version you want).
Another possibility is to download gmongo and MongoDB Java Driver jars and put them into /WEB-INF/lib/.
On Thu, Sep 26, 2013 at 10:17 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thanks. But now I don't know any other way to get and access MongoDB in xwiki. Any links or documents?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Your issue may be caused by @Grab, that download and load jars into the permgen.
On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <lequan.moon@gmail.com> wrote:
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.*
def data = [] // a list contain data
def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close()
// For GC dbConn = null gmongoObject = null
// Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString()
// For GC slurper = null builder = null {{/groovy}}
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Well without changing your script all I can suggest is to allocate more permgen to java using
-XX:MaxPermSize=<enough memory>M
On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote: > Thank you > It's true that the more script responing page processes, the more classes > are loaded. > Is there anyway to prevent OutOfmemory Exception happened? > > > 2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com> > >> I doubt it has anything to do with the request itself, it's probably >> more related to what your page is doing. From what I understand your >> page create directly or indirectly new classes. Note that most script >> languages compile the script into a new Java class before executing it >> so if you execute a lot of very big scripts at the same time it can >> probably be pretty costy for the permgen. Something else that could be >> costy is if you load a jar in this page for example with the "jars" >> property of script macros. >> >> On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon < lequan.moon@gmail.com> >> wrote: >> > Hi, >> > I'm making an application that make an AJAX request frequently from page >> to >> > page in xwiki. >> > About 1 per 10s >> > The request look like this: >> > >> > $.ajax({ >> > type: "GET", >> > crossDomain: true, >> > url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", >> > dataType: 'text', >> > data: data2send, >> > success: function(result) {...}, >> > error: function(xhr, status, error) { >> > console.log(error) >> > console.log(status) >> > console.log(xhr) >> > } >> > }); >> > >> > And respone is simple as a text or something like a JSON Map, List. >> > I took a look at jconsole and here it is >> > < >>
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
>> > >> > Please help! I don't understand how xwiki works on this. >> > >> > Thank in advanced. >> > >> > >> > >> > >> > -- >> > View this message in context: >>
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
>> > Sent from the XWiki- Dev mailing list archive at Nabble.com. >> > _______________________________________________ >> > devs mailing list >> > devs@xwiki.org >> > http://lists.xwiki.org/mailman/listinfo/devs >> >> >> >> -- >> Thomas Mortagne >> _______________________________________________ >> devs mailing list >> devs@xwiki.org >> http://lists.xwiki.org/mailman/listinfo/devs >> > > > > -- > ======Lê Minh Quân====== > _______________________________________________ > devs mailing list > devs@xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân======
-- ======Lê Minh Quân======
Ok, cool. On Thu, Sep 26, 2013 at 11:04 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thank Thomas. The problem is much more smaller now. Still I need a long-term test for sure but thank a lot. We can close this topic.
2013/9/26 Quân Lê <lequan.moon@gmail.com>
Thank you. I'll try it.
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
You could install it as extension so that it's not loaded with each script. Go you admin, Add Extension and use advanced search with id com.gmongo:gmongo and version 1.0 (or any other version you want).
Another possibility is to download gmongo and MongoDB Java Driver jars and put them into /WEB-INF/lib/.
On Thu, Sep 26, 2013 at 10:17 AM, Quân Lê <lequan.moon@gmail.com> wrote:
Thanks. But now I don't know any other way to get and access MongoDB in xwiki. Any links or documents?
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
Your issue may be caused by @Grab, that download and load jars into the permgen.
On Thu, Sep 26, 2013 at 9:58 AM, Quân Lê <lequan.moon@gmail.com> wrote:
I tried with XX:MaxPermSize=256M but with 1 request per 2sec. The PermGen memory is going like 15mb/min. All the code of responing page is just like this: {{groovy}} @Grab(group='com.gmongo', module='gmongo', version='1.0') import com.gmongo.GMongo import groovy.json.*
def data = [] // a list contain data
def gmongo = new GMongo() def dbConn = gmongo.getDB('dbtest') // Not query database but it already go crazy gmongoObject.close()
// For GC dbConn = null gmongoObject = null
// Convert into JSON def slurper = new JsonSlurper() def builder = new JsonBuilder(data) println builder.toString()
// For GC slurper = null builder = null {{/groovy}}
2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com>
> Well without changing your script all I can suggest is to allocate > more permgen to java using > > -XX:MaxPermSize=<enough memory>M > > > On Thu, Sep 26, 2013 at 9:25 AM, Quân Lê <lequan.moon@gmail.com> wrote: > > Thank you > > It's true that the more script responing page processes, the more classes > > are loaded. > > Is there anyway to prevent OutOfmemory Exception happened? > > > > > > 2013/9/26 Thomas Mortagne <thomas.mortagne@xwiki.com> > > > >> I doubt it has anything to do with the request itself, it's probably > >> more related to what your page is doing. From what I understand your > >> page create directly or indirectly new classes. Note that most script > >> languages compile the script into a new Java class before executing it > >> so if you execute a lot of very big scripts at the same time it can > >> probably be pretty costy for the permgen. Something else that could be > >> costy is if you load a jar in this page for example with the "jars" > >> property of script macros. > >> > >> On Thu, Sep 26, 2013 at 8:53 AM, lequan.moon < lequan.moon@gmail.com> > >> wrote: > >> > Hi, > >> > I'm making an application that make an AJAX request frequently from > page > >> to > >> > page in xwiki. > >> > About 1 per 10s > >> > The request look like this: > >> > > >> > $.ajax({ > >> > type: "GET", > >> > crossDomain: true, > >> > url: "/xwiki/bin/get/Lib/LibPage?outputSyntax=plain", > >> > dataType: 'text', > >> > data: data2send, > >> > success: function(result) {...}, > >> > error: function(xhr, status, error) { > >> > console.log(error) > >> > console.log(status) > >> > console.log(xhr) > >> > } > >> > }); > >> > > >> > And respone is simple as a text or something like a JSON Map, List. > >> > I took a look at jconsole and here it is > >> > < > >> >
http://xwiki.475771.n2.nabble.com/file/n7587262/9-26-2013_1-51-09_PM.jpg>
> >> > > >> > Please help! I don't understand how xwiki works on this. > >> > > >> > Thank in advanced. > >> > > >> > > >> > > >> > > >> > -- > >> > View this message in context: > >> >
http://xwiki.475771.n2.nabble.com/Frrequently-AJAX-request-caused-PernGen-Ex...
> >> > Sent from the XWiki- Dev mailing list archive at Nabble.com. > >> > _______________________________________________ > >> > devs mailing list > >> > devs@xwiki.org > >> > http://lists.xwiki.org/mailman/listinfo/devs > >> > >> > >> > >> -- > >> Thomas Mortagne > >> _______________________________________________ > >> devs mailing list > >> devs@xwiki.org > >> http://lists.xwiki.org/mailman/listinfo/devs > >> > > > > > > > > -- > > ======Lê Minh Quân====== > > _______________________________________________ > > devs mailing list > > devs@xwiki.org > > http://lists.xwiki.org/mailman/listinfo/devs > > > > -- > Thomas Mortagne > _______________________________________________ > devs mailing list > devs@xwiki.org > http://lists.xwiki.org/mailman/listinfo/devs >
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- ======Lê Minh Quân======
-- ======Lê Minh Quân====== _______________________________________________ devs mailing list devs@xwiki.org http://lists.xwiki.org/mailman/listinfo/devs
-- Thomas Mortagne
participants (3)
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lequan.moon -
Quân Lê
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Thomas Mortagne