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From Tim Bain <tb...@alumni.duke.edu>
Subject Re: Garbage collecter out of memory
Date Tue, 22 Sep 2015 02:25:53 GMT
Also, I see you're using a DeserializerCache, which strongly implies
there'll be some caching going on; are you sure you've configured the
caching behavior appropriately for your JVM size and expected use case?
On Sep 21, 2015 8:22 PM, "Tim Bain" <tbain@alumni.duke.edu> wrote:

> If you "force" a full GC (as much as it's possible to do that since it's
> really just a suggestion), does memory usage drop substantially?  If not,
> it's not the garbage collector's fault, you're using all of your memory,
> either because there's a memory leak (unlikely given how many other people
> run ActiveMQ, but always possible), because you're doing something that
> continually increases memory usage (such as producing messages without
> consuming them), or because you didn't size your JVM large enough for your
> needs.
>
> You'll probably want to see what is using memory by looking at queue
> sizes, by taking a memory dump, etc. to understand if there's a steady
> increase.  Pursue the first two if there is, and only pursue the last one
> if you're sure there's not and if you estimate out your memory usage and it
> seems reasonable that you really are undersized; if you can't look yourself
> in the eye and say you know you're undersized without that nagging voice in
> the back of your head asking if you're really sure, keep investigating!
> Otherwise you'll tell everyone you fixed it when all you did was delay the
> inevitable, and when it happens again (and it will) everyone will wonder
> why you got it wrong and whether to believe you the next time you say you
> fixed something.
> On Sep 21, 2015 4:11 PM, "mhempleman" <matthew.hempleman@alstom.com>
> wrote:
>
>> Hi,
>>
>> I have a webapp running on Jboss that is currently using HornetQ for
>> messaging.  I'm attempting to switch to ActiveMQ but running into some
>> annoying issues.  Everything starts with no issue and messages are
>> transfered as expected, but after running for a short period of time, I
>> start getting two error messages.
>>
>> *org.springframework.integration.MessageTimeoutException: failed to
>> receive
>> JMS response within timeout of: 10000ms*
>>
>> AND
>>
>> * java.lang.RuntimeException: No sender waiting for reply.*
>>
>>
>> If I let it run, after awhile I get this:
>>
>>
>> *11:12:56,834 INFO [stdout] (Deferred Command #1)
>> java.lang.OutOfMemoryError: GC overhead limit exceeded*
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>> java.util.Arrays.copyOfRange(Arrays.java:2694)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>> java.lang.String.<init>(String.java:203)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>> java.lang.StringBuilder.toString(StringBuilder.java:405)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parsePackageNameAndSimpleClassTypeSignature(SignatureParser.java:340)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseClassTypeSignature(SignatureParser.java:312)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(SignatureParser.java:291)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseFieldTypeSignature(SignatureParser.java:285)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseTypeSignature(SignatureParser.java:487)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseZeroOrMoreTypeSignatures(SignatureParser.java:610)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseFormalParameters(SignatureParser.java:587)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseMethodTypeSignature(SignatureParser.java:577)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.parser.SignatureParser.parseMethodSig(SignatureParser.java:173)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.ConstructorRepository.parse(ConstructorRepository.java:55)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.ConstructorRepository.parse(ConstructorRepository.java:43)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.AbstractRepository.<init>(AbstractRepository.java:74)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.GenericDeclRepository.<init>(GenericDeclRepository.java:48)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.ConstructorRepository.<init>(ConstructorRepository.java:51)
>>
>> 11:12:56,834 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.MethodRepository.<init>(MethodRepository.java:46)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> sun.reflect.generics.repository.MethodRepository.make(MethodRepository.java:59)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>> java.lang.reflect.Method.getGenericInfo(Method.java:102)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>> java.lang.reflect.Method.getGenericParameterTypes(Method.java:292)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.AnnotatedMethod.getGenericParameterType(AnnotatedMethod.java:207)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.AnnotatedWithParams.getParameter(AnnotatedWithParams.java:119)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector._addCreators(POJOPropertiesCollector.java:453)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.POJOPropertiesCollector.collect(POJOPropertiesCollector.java:235)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.collectProperties(BasicClassIntrospector.java:142)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.forDeserialization(BasicClassIntrospector.java:81)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.introspect.BasicClassIntrospector.forDeserialization(BasicClassIntrospector.java:11)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.DeserializationConfig.introspect(DeserializationConfig.java:547)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.deser.DeserializerCache._createDeserializer(DeserializerCache.java:325)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCache2(DeserializerCache.java:263)
>>
>> 11:12:56,835 INFO [stdout] (Deferred Command #1) at
>>
>> com.fasterxml.jackson.databind.deser.DeserializerCache._createAndCacheValueDeserializer(DeserializerCache.java:2
>>
>>
>> I can't figure out why the garbage collector would be working so hard.
>> Any
>> advice would be greatly appreciated?  Thanks
>>
>>
>>
>> --
>> View this message in context:
>> http://activemq.2283324.n4.nabble.com/Garbage-collecter-out-of-memory-tp4702160.html
>> Sent from the ActiveMQ - User mailing list archive at Nabble.com.
>>
>

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