13 Replies Latest reply on Sep 14, 2018 11:44 AM by mingweiwu

maxParameterCount on standalone configuration

hlfsousa Apr 17, 2012 2:44 PM

Hello, devs and folks!

I have an unusual form in an application that contains a lot of fields for submission. Though the request was not that long (Content-Length: 25114), it failed when I tried to send over 580 input fields. The error message I got was:

java.lang.IllegalStateException: More than the maximum number of request parameters (GET plus POST) for a single request ([512]) were detected. Any parameters beyond this limit have been ignored. To change this limit, set the maxParameterCount attribute on the Connector.

So I went on and looked up maxParameterCount. It is a common Connector property for Tomcat, but it does not show up at the XML schema used by JBoss AS:

https://github.com/jbossas/jboss-as/blob/master/build/src/main/resources/docs/schema/jboss-as-web_1_1.xsd (lookup "web-connector-attlist").

Therefore, I cannot just add the connector attribute in standalone.xml like so:

<connector name="http" protocol="HTTP/1.1" scheme="http" socket-binding="http" maxParameterCount="1000" />

The parser complains with

Message: JBAS014788: Unexpected attribute 'maxParameterCount' encountered

at org.jboss.as.controller.parsing.ParseUtils.unexpectedAttribute(ParseUtils.java:104)

Is there any way to set maxParameterCount on the Tomcat connector? I appreciate any help. Best regards,

Henrique

1. Re: maxParameterCount on standalone configuration

jfclere Apr 18, 2012 4:10 AM (in response to hlfsousa)

you have to use a system property org.apache.tomcat.util.http.Parameters.MAX_COUNT.
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2. Re: maxParameterCount on standalone configuration

sergiu_pienar Jun 8, 2012 9:10 AM (in response to jfclere)

Jean-Frederic,

Could you please be a bit more specific ?

Thank you.
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3. Re: maxParameterCount on standalone configuration

jfclere Jun 8, 2012 10:28 AM (in response to sergiu_pienar)

Something like:

    </extensions>

    <system-properties>
       <property name="org.apache.tomcat.util.bla.bla" value="nnn"/>
    </system-properties>

    <management>

In standalone.xml
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4. Re: maxParameterCount on standalone configuration

sergiu_pienar Jun 11, 2012 3:31 AM (in response to jfclere)

Thanks!

The same can be achieved via the Management Console @ localhost:9990 -> Profile -> General Configuration -> System Properties and add the specific key and value.

Message was edited by: Sergiu Pienar
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5. Re: maxParameterCount on standalone configuration

vaibhavnaik Jul 27, 2012 9:16 AM (in response to jfclere)

I'm using "JBoss-EAP-6.0.0"(Evaluvation version) & facing same issue when I deployed my application in "standalone". It worked fine after modifying standalone.xml as you suggested.

My questions are:
The request params length can be huge in enterprise application. Why this restriction in request params then?
Is this same setting required for application which are deployed in "domain" too?
Is there any other workaround that I can change in my application only? (I don't want to ask customers to modify their JBoss settings. It is painful.)

Thanks.
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6. Re: maxParameterCount on standalone configuration

jfclere Jul 30, 2012 3:21 AM (in response to vaibhavnaik)

Using many parameters brings performances issues and risk for hash map collissions.
Usually many parameters are due to poor design of the webapps :-(
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7. Re: maxParameterCount on standalone configuration

vaibhavnaik Jul 30, 2012 3:28 AM (in response to jfclere)

Do I need to modify param limits for application deployed in "domain" too? Whats the default param limit for "domain"?
I think, I must have to document this workaround for cutomers. right?
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8. Re: maxParameterCount on standalone configuration

jfclere Aug 1, 2012 5:48 AM (in response to vaibhavnaik)

https://docs.jboss.org/author/display/AS71/CLI+Recipes
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9. Re: maxParameterCount on standalone configuration

technokrat Aug 15, 2012 5:51 AM (in response to hlfsousa)

I spent 4 hour to find how looks bla-bla.

<system-properties>
<property name="org.apache.tomcat.util.http.Parameters.MAX_COUNT" value="5000"/>
</system-properties>

https://community.jboss.org/thread/177942
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10. Re: maxParameterCount on standalone configuration

yuvraj.patel Nov 18, 2014 7:09 AM (in response to hlfsousa)

Hi,

Could anybody please let me know if there was something similar in Jboss eap 5 or have anybody seen this issue in jboss 5. Actually we have upgraded to jboss6 and getting this issue and I wanted to know as why this worked in Jboss 5 and its not working on jboss 6.

Thanks
Yuvraj
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11. Re: maxParameterCount on standalone configuration

jfclere Nov 18, 2014 10:14 AM (in response to yuvraj.patel)

actually EAP5 and EAP6 have the fix.... Probably AS6 never gets it.
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12. Re: maxParameterCount on standalone configuration

jishnunp May 24, 2017 6:51 AM (in response to hlfsousa)

set "JAVA_OPTS=%JAVA_OPTS% -Dorg.apache.tomcat.util.http.Parameters.MAX_COUNT=1000"

this will resolve the issue
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13. Re: maxParameterCount on standalone configuration

mingweiwu Sep 14, 2018 11:44 AM (in response to hlfsousa)

For Jboss 7, EAP 6.0 change the Parameters.MAX_COUNT value = "-1" in standalone.xml will works
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