Committed should not larger than max_size in ContiguousSpacePool while using ParNew with UseAdaptiveSizePolicy

[Daniel D. Daugherty]

Hongxi,

I'm redirecting this message to the HotSpot GC OpenJDK alias
and the Serviceability OpenJDK alias. JMX is owned by the
Serviceability team and you've also got some GC questions
here...

Dan

P.S.
Bcc'ed the Runtime OpenJDK so you folks know that this message
has been redirected...

On 3/18/13 7:59 PM, ºéÎõ(hongxi) wrote:
>
> Hi all£º
>
> Sorry if here is not the right place to submit this small fix.
>
> Days ago, some of our systems occur this exception:
>
> 2013-01-22 16:59:07,351 ERROR protocol.MBeanServerMessageHandler {141}
> - handle message error objectName=com.alibaba.dragoon:type=GC
>
> javax.management.RuntimeErrorException: java.lang.InternalError:
> Memory Pool not found
>
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrow(DefaultMBeanServerInterceptor.java:858)
>
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.rethrowMaybeMBeanException(DefaultMBeanServerInterceptor.java:869)
>
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:670)
>
> at
> com.sun.jmx.mbeanserver.JmxMBeanServer.getAttribute(JmxMBeanServer.java:638)
>
> at
> com.alibaba.dragoon.common.protocol.MBeanServerMessageHandler.getAttributeInternal(MBeanServerMessageHandler.java:242)
>
> at
> com.alibaba.dragoon.common.protocol.MBeanServerMessageHandler.handle(MBeanServerMessageHandler.java:113)
>
> at
> com.alibaba.dragoon.common.protocol.MessageHandlerAdapter.handle(MessageHandlerAdapter.java:53)
>
> at
> com.alibaba.dragoon.common.protocol.DragoonSession.receiveMessageIntenal(DragoonSession.java:204)
>
> at
> com.alibaba.dragoon.common.protocol.DragoonSession.receiveMessage(DragoonSession.java:178)
>
> at
> com.alibaba.dragoon.common.protocol.transport.socket.SocketSessionImpl$1.run(SocketSessionImpl.java:211)
>
> Caused by: java.lang.InternalError: Memory Pool not found
>
> at sun.management.MemoryPoolImpl.getUsage0(Native Method)
>
> at sun.management.MemoryPoolImpl.getUsage(MemoryPoolImpl.java:77)
>
> at com.alibaba.dragoon.client.jmx.GC.getEdenSpaceUsed(GC.java:185)
>
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
>
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
>
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
>
> at java.lang.reflect.Method.invoke(Method.java:597)
>
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:93)
>
> at
> com.sun.jmx.mbeanserver.StandardMBeanIntrospector.invokeM2(StandardMBeanIntrospector.java:27)
>
> at
> com.sun.jmx.mbeanserver.MBeanIntrospector.invokeM(MBeanIntrospector.java:208)
>
> at com.sun.jmx.mbeanserver.PerInterface.getAttribute(PerInterface.java:65)
>
> at
> com.sun.jmx.mbeanserver.MBeanSupport.getAttribute(MBeanSupport.java:216)
>
> at
> com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.getAttribute(DefaultMBeanServerInterceptor.java:666)
>
> ... 7 more
>
> The jvm argument is as bellow£º
>
> /usr/java/bin/java -server -Xmx5g -Xms5g -Xmn512m -XX:PermSize=128m
> -Xss256k -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC
> -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection
>
> -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly
> -XX:CMSInitiatingOccupancyFraction=70 -XX:+UseCompressedOops
> -XX:ParallelGCThreads=4 -XX:+UseAdaptiveSizePolicy
>
> -Dcom.sun.management.jmxremote.port=1100
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.authenticate=false
> -Djava.rmi.server.hostname=localhost
>
> -Dhummock.output.logs=/home/admin/output/logs -Djava.awt.headless=true
> -Djava.net.preferIPv4Stack=true
>
> At last, we found it¡¯s possible a jvm bug, when UseAdaptiveSizePolicy
> + ParNew, if the eden is expanded the max size of eden¡¯s
> ContiguousSpacePool will not be updated, perhaps the commited is
> larger than max_size. Though at last I know UseAdaptiveSizePolicy has
> some problems with CMS and it has been disabled in the latest jdk7u, I
> think I should submit a patch to fix this small bug. My patch is in
> the attachment.
>
> Regrads
>
> hongxi
>
>
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