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

[Bengt Rutisson]

Just FYI. This discussion was moved to hotspot-gc-dev at openjdk.java.net.

Bengt


On 3/19/13 2:59 AM, 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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