Wildfly 9.0.2 increasing max-post-size

[ganeshment]

Hi,

At present Wildfly is using integer range validator to validate max-post-size parameter.

We have requirement to support uploading of file size greater than 2.4GB (this limitation is due to integer range validator).

Changing the validator to LongRangeValidator is allowing us to upload files larger than 2.4GB.

org.jboss.as.web.WebConnectorDefinition.java

protected static final SimpleAttributeDefinition MAX_POST_SIZE =

            new SimpleAttributeDefinitionBuilder(Constants.MAX_POST_SIZE, ModelType.LONG)

                    .setAllowNull(true)

                    .setValidator(new LongRangeValidator(0, Long.MAX_VALUE, true, true))

                    .setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)

                    .setDefaultValue(new ModelNode(2097152))

                    .setAllowExpression(true)

                    .build();

Do you see any issues with the above approach or is there any other approach to achieve the same?

Regards,

Ganesh

[jaysensharma]

Hello Ganesh,

Please use the following CLI command :

/subsystem=undertow/server=default-server/http-listener=default/:write-attribute(name=max-post-size,value=25485760)

Generated XML config in your WildFly profile:

        <subsystem xmlns="urn:jboss:domain:undertow:3.0">
            <buffer-cache name="default"/>
            <server name="default-server">
                <http-listener name="default" max-post-size="25485760" redirect-socket="https" socket-binding="http"/>  <!-- NOTICE max-post-size="25485760"  -->
                <host name="default-host" alias="localhost">
                    <location name="/" handler="welcome-content"/>
                    <filter-ref name="server-header"/>
                    <filter-ref name="x-powered-by-header"/>
                </host>
            </server>
            . 
            . 
        </subsystem>

See: http://wildscribe.github.io/Wildfly/8.0.0.Final/subsystem/undertow/server/http-listener/index.html

• max-post-size The maximum size of a post that will be accepted

Attribute	Value
Default Value	10485760
Type	LONG
Nillable	true
Expressions Allowed	true

Regards

Jay SenSharma

[ganeshment]

My question is at present it does not allow any value larger than integer max value (does not allow mean even though I set it in standalone.xml while starting the server it fails with integer range validation error).

Our requirement is to configure a value larger than integer max so we have made the required changes to use Long range validator. It is working but want to make sure this is the right approach.

[ganeshment]

As most of the documents specify max-post-size type as LONG

but when looked at the code in org.jboss.as.web.WebConnectorDefinition.java, max-post-size type is INT

[jaikiran]

Can you try this against the recently released 10.0.0 CR5 and see if it works there? If it doesn't, please post the configuration file you are using and also the complete exception stacktrace.

[ganeshment]

I have looked into 10 CR5 code and it is also using Integer type and validator.

https://github.com/wildfly/wildfly/blob/10.0.0.CR5/legacy/web/src/main/java/org/jboss/as/web/WebConnectorDefinition.java

protected static final SimpleAttributeDefinition MAX_POST_SIZE =
	new SimpleAttributeDefinitionBuilder(Constants.MAX_POST_SIZE, ModelType.INT)
	.setAllowNull(true)
	.setValidator(new IntRangeValidator(0, true))
	.setFlags(AttributeAccess.Flag.RESTART_ALL_SERVICES)
	.setDefaultValue(new ModelNode(2097152))
	.setAllowExpression(true)
	.build();

I will post stack trace on Monday

[ctomc]

well, the code in WebConnectorDefintion is used by legacy web subsystem and it is not shared by undertow subsystem.

For undertow subsystem it is defined here:

wildfly/ListenerResourceDefinition.java at master · wildfly/wildfly · GitHub

which uses undertow/UndertowOptions.java at master · undertow-io/undertow · GitHub as definition of the attribute.

and as you can see it is long.

[ganeshment]

We were setting same value to max-header-size and max-post-size and were getting Integer validation error. Copy paste problem.

max-header-size is Int type and we don't have requirement to set it to large value.

After correction we are able to work with files greater than 2.14GB.

Iam marking this post as answered

[a.bader]

Is there any way to setup the max-pool-size (independent of integer / long -> I use only 100MB but not only 10MB) programmatically or in web.xml?

I should be able to build a .war file containing this setting rather than needing modifs in standalone.xml / using the CLI.

[clairton.rodrigo.heinzen]

Hello

I Solved this.

I create META-INF/services/io.undertow.servlet.ServletExtension and put "IncreasePostSizeServletExtension" for this implemations

import javax.servlet.ServletContext;

import io.undertow.server.HandlerWrapper;

import io.undertow.server.HttpHandler;

import io.undertow.servlet.ServletExtension;

import io.undertow.servlet.api.DeploymentInfo;

public class IncreasePostSizeServletExtension implements ServletExtension {

  @Override

  public void handleDeployment(final DeploymentInfo deployment, final ServletContext context) {

      deployment.addInitialHandlerChainWrapper(new HandlerWrapper() {

          @Override

          public HttpHandler wrap(final HttpHandler handler) {

             return new IncreasePostSizeHandlerDecorator(handler);

          }

      });

  }

}

public class IncreasePostSizeHandlerDecorator implements HttpHandler{

      private final HttpHandler delegate;

      public IncreasePostSizeHandlerDecorator(final HttpHandler delegate) {

          super();

          this.delegate = delegate;

      }

      @Override

      public void handleRequest(final HttpServerExchange exchange) throws Exception {

         delegate.handleRequest(exchange);

          exchange.setMaxEntitySize(61644800l);

      }

}

[clairton.rodrigo.heinzen]

This library will resolve GitHub - clairton/undertow-max-entity-size-handler