web connectors metrics uses long value as int in JBoss EAP 6.4

Solution Verified - Updated 2 Aug 2024

Environment

Red Hat JBoss Enterprise Application Platform (EAP) 6.4

Issue

In JBoss EAP 6.4, the 'bytesSent' metrics on web subsystem connectors is defined in the code to be ModelType.INT, but the data it received from the JBossWeb is a long.
We see the following exception checking bytesSent via CLI once it exceeds the int range:

java.lang.NumberFormatException: For input string: "2219513327"
at org.jboss.as.jmx.model.TypeConverters$IntegerValueAccessor.fromModelNode(TypeConverters.java:778)
at org.jboss.as.jmx.model.TypeConverters$SimpleTypeConverter.fromModelNode(TypeConverters.java:223)
at org.jboss.as.jmx.model.TypeConverters.fromModelNode(TypeConverters.java:114)
at org.jboss.as.jmx.model.ModelControllerMBeanHelper.getAttribute(ModelControllerMBeanHelper.java:257)
at org.jboss.as.jmx.model.ModelControllerMBeanHelper.getAttribute(ModelControllerMBeanHelper.java:212)
at org.jboss.as.jmx.model.ModelControllerMBeanServerPlugin.getAttribute(ModelControllerMBeanServerPlugin.java:127)
at org.jboss.as.jmx.PluggableMBeanServerImpl.getAttribute(PluggableMBeanServerImpl.java:356)
at org.jboss.as.jmx.BlockingNotificationMBeanServer.getAttribute(BlockingNotificationMBeanServer.java:148)
at org.jboss.remotingjmx.protocol.v2.ServerProxy$GetAttributeHandler.handle(ServerProxy.java:691)
at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1$1.run(ServerCommon.java:153)
at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:75)
at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor$1.run(ServerInterceptorFactory.java:70)
at org.jboss.as.jmx.ServerInterceptorFactory$Interceptor.handleEvent(ServerInterceptorFactory.java:70)
at org.jboss.remotingjmx.protocol.v2.ServerCommon$MessageReciever$1.run(ServerCommon.java:149)

Resolution

Check the bytesSent through jmx instead per How to Access JBossWeb mbeans and their Related statistics in JBoss EAP 6 ?
A temporary workaround was implemented in EAP 6.4.6 of converting the value to an integer. This will no longer throw an exception, but the value is not correct (it will wrap to a negative number instead).

Root Cause

SBR

Product(s)

Red Hat JBoss Enterprise Application Platform

Components

jbossas

Category

Troubleshoot

Tags

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