[wildfly-dev] JBAS011592 the logging subsystem requires the log manager to be org.jboss.logmanager.LogManager

[Max Rydahl Andersen]

On 20 Oct 2014, at 11:20, Max Rydahl Andersen wrote:> On 20 Oct 2014, at 
1:48, James R. Perkins wrote:
>
>> As Stuart asked more details would help.
>>
>> The only way this could happen is if something, an agent for example, 
>> attempts to get a logger before JBoss Modules initializes logging. 
>> JBoss Modules looks for a META-INF/services/ 
>> java.util.logging.LogManager service which JBoss Log Manager has. If 
>> an agent needs to be used the java.util.logging.manager needs to be 
>> set to org.jboss.logmanager.LogManager before the agent initializes a 
>> logger.
>
> It is all in the jira.
>
> And no, these errors have been happening on what is just plain vanilla 
> WildFly or EAP/JPP bundles.
>
> We do not do any agent funkyness afaik.
>
> And as said the "workaround" so far have been "restart it" and it 
> works.
>
> zero changes to the state or arguments.

okey so there been some new movement in this.

https://bugzilla.redhat.com/show_bug.cgi?id=1037970

Indicating there actually is a race condition if something pings the jvm 
via jmx during the startup
*before* jboss main boot process manages to set the logmanager. 
Something that will happen because
we actually have a feature that scans for locally running jvm's and 
attach an agent to gather info.

Suggested workaround is to add this to our launch:
JAVA_OPTS="$JAVA_OPTS 
-Djava.util.logging.manager=org.jboss.logmanager.LogManager"
JAVA_OPTS="$JAVA_OPTS 
-Xbootclasspath/p:$JBOSS_HOME/modules/org/jboss/logmanager/main/jboss-logmanager-1.3.1.Final-redhat-1.jar" 
-logging org.jboss.logmanager.LogManager

Question from us is, is the above workaround proper ? Will EAP/WildFly 
change their boot arguments to match to avoid this race condition issue 
for bat/sh launched servers too ?

/max

>
> /max
>
>>
>> On 10/19/2014 12:42 AM, Stuart Douglas wrote:
>>> Are you using a java agent by any chance?
>>>
>>> If you are then the java agent is probably causing the issue, by
>>> attempting to log something before JBoss modules can set the log 
>>> manager.
>>>
>>> If you are not using a java agent then I am not sure exactly what 
>>> the
>>> cause might be. Looking at the code it looks like it is possible for 
>>> a
>>> custom security manager to break logging as the security manager is
>>> initialized first, however that does not seem likely.
>>>
>>> Can you share the details on exactly what command line is being used 
>>> to
>>> start the server?
>>>
>>> Stuart
>>>
>>> Max Rydahl Andersen wrote:
>>>> Heya,
>>>>
>>>> In tools and around arquillian I'm seeing more and more of $subject
>>>> error that I can't figure out the cause of.
>>>>
>>>> I've found https://issues.jboss.org/browse/WFLY-3152 which David
>>>> responds the error message is clear.
>>>>
>>>> I might be clear, but I can't figure out why starting wildfly the 
>>>> exact
>>>> same way will in one case result in this
>>>> error but then on second start it just works.
>>>>
>>>> I first thought that our tools might not be setting the LogManager
>>>> (which it does not), but when I look at standalone.sh
>>>> in the same server there is also no setting of this property hence
>>>> afaics the server is being obtuse.
>>>>
>>>> The answer in all cases seem to have been "have tried restarting 
>>>> it?"
>>>> and then things starts working, until it doesn't - and
>>>> then we restart again.
>>>>
>>>> Any idea on what is going on  here ?
>>>>
>>>> Thanks,
>>>> /max
>>>> http://about.me/maxandersen
>>>> _______________________________________________
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>>
>> -- 
>> James R. Perkins
>> JBoss by Red Hat
>>
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>> wildfly-dev at lists.jboss.org
>> https://lists.jboss.org/mailman/listinfo/wildfly-dev
>
>
> /max
> http://about.me/maxandersen


/max
http://about.me/maxandersen