Do you have a test showing the issue ?

check Leak has an interface to count instances.  If you provide a way to
reproduce the issue (a test with embedded server would be best) I will help
out.

Clebert Suconic


On Tue, Dec 3, 2024 at 9:03 AM Dragan J <draga...@flipside.team> wrote:

> Hi guys,
>
> Do you have any updates on this?
>
> Thanks,
> Dragan
>
> On Tue, Nov 26, 2024 at 4:27 PM Dragan J <draga...@flipside.team> wrote:
>
> > @justin, please try rebooting the server with an Artemis broker (the
> > source) that connects to another broker (the destination), which must run
> > on a different server.
> > The brokers exchange messages between them, but the volume is very low
> > since this is a development environment.
> > A memory leak is observed a few hours later on the destination server
> > (running Artemis 2.38).
> >
> > @Clebert  The provided check-leak code is not straightforward to
> > implement. Could you please refer me to some instructions on how to do
> it?
> >
> >
> >
> > On Fri, Nov 22, 2024 at 3:00 PM Dragan J <draga...@flipside.team> wrote:
> >
> >> @Clebert Unfortunately, the business requirement is to use CoreBridges.
> >> @Justin We tested with 1000 CoreBridges, and a memory leak remains.
> >> Here is "the problem suspect" from the Memory Analyzer (a heap dump
> >> analyzed):
> >>
> >>
> >> 1,254 instances of
> >>
> “org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl”,
> >> loaded by “java.net.URLClassLoader @ 0x400000000” occupy 527,112,720
> >> (73.68%) bytes.
> >>
> >> Biggest instances:
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40d81e128 - 17,669,864 (2.47%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409926c00 - 17,643,464 (2.47%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x411b0b320 - 17,624,664 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x401fdb948 - 17,614,232 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x4099afd28 - 17,606,640 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409895e10 - 17,599,608 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40d9e35e0 - 17,597,288 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409b1a978 - 17,581,512 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409969ad8 - 17,579,656 (2.46%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40d9e5088 - 17,559,432 (2.45%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x410fa8d80 - 17,552,744 (2.45%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x404db4d38 - 17,547,832 (2.45%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x4197b64f0 - 17,529,272 (2.45%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409a03058 - 17,521,432 (2.45%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x411b55168 - 17,495,208 (2.45%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40b0b3c30 - 17,481,480 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x4084fe4b0 - 17,478,696 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x4195a5dc8 - 17,476,840 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x419725708 - 17,472,008 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409a441c8 - 17,453,176 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x404d89060 - 17,434,424 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40f875d80 - 17,425,144 (2.44%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x4102071f8 - 17,408,104 (2.43%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40d9e34f8 - 17,383,576 (2.43%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409926318 - 17,374,568 (2.43%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x409a7cde8 - 17,318,888 (2.42%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40aadd150 - 17,285,208 (2.42%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40d81ba08 - 17,273,880 (2.41%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x40070d068 - 17,223,032 (2.41%) bytes.
> >>
> •org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> @ 0x41bea4538 - 17,146,936 (2.40%) bytes.
> >>
> >> Most of these instances are referenced from one instance of
> >>
> “org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl”,
> >> loaded by “java.net.URLClassLoader @ 0x400000000”, which occupies 7,008
> >> (0.00%) bytes.
> >>
> >> Thread
> >>
> “org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl$FailureCheckAndFlushThread
> >> @ 0x405ffd540 activemq-failure-check-thread” has a local variable or
> >> reference to
> >>
> “org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl
> >> @ 0x401a42658” which is on the shortest path to
> >>
> “org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl
> >> @ 0x401a42658”. The thread
> >>
> org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl$FailureCheckAndFlushThread
> >> @ 0x405ffd540 activemq-failure-check-thread keeps local variables with
> >> total size 328 (0.00%) bytes.
> >>
> >> The stacktrace of this Thread is available. See stacktrace. See
> >> stacktrace with involved local variables.
> >>
> >> Keywords
> >>
> org.apache.activemq.artemis.core.protocol.core.impl.RemotingConnectionImpl
> >> java.net.URLClassLoader
> >>
> org.apache.activemq.artemis.core.remoting.server.impl.RemotingServiceImpl
> >>
> >> Thanks,
> >> Dragan
> >>
> >>
> >> On Tue, Nov 19, 2024 at 12:13 PM Dragan J <draga...@flipside.team>
> wrote:
> >>
> >>> Hey Justin,
> >>>
> >>> Here are the answers:
> >>> - Are all the bridges configured the same way? How exactly are they
> >>> configured?
> >>> Yes, they are configured the same way.
> >>> The CoreBridge configuration is attached to
> >>>
> https://drive.google.com/file/d/1VEwj1MoB2tbcCp8R4XeQTzi80Q0dQ606/view?usp=sharing
> >>>
> >>> - Is the bridge target available when you see this increase happen?
> >>> The bridges are connected from the client side to the server (with the
> >>> 2.38 Artemis version)
> >>> - Are the bridges actually moving messages when you see the increase or
> >>> are they idle?
> >>> Most of the time, messages are idle.
> >>> - Are 3,500 bridges actually required to trigger the increase? Do you,
> >>> for
> >>> example, not see the increase if you use 3,000 bridges? What about
> 1,000
> >>> or
> >>> 100?
> >>> We tested with 3500 CoreBridges in the development environment, and I
> >>> should ask for permission to close some connections.
> >>> If you require it, I would ask for that kind of permission.
> >>>
> >>> Thanks,
> >>> Dragan
> >>>
> >>> On Mon, Nov 18, 2024 at 2:43 PM Dragan J <draga...@flipside.team>
> wrote:
> >>>
> >>>> Can you access the screenshots?
> >>>>
> >>>> On Thu, Nov 14, 2024 at 10:18 AM Dragan J <draga...@flipside.team>
> >>>> wrote:
> >>>>
> >>>>> Sorry, a typo. It's 3,500 CoreBridges
> >>>>>
> >>>>> On Thu, Nov 14, 2024 at 10:14 AM Dragan J <draga...@flipside.team>
> >>>>> wrote:
> >>>>>
> >>>>>> @Justin The broker (version 2.38) communicates with other brokers
> >>>>>> (version 2.37) through 35,000 CoreBridges. There was minimal message
> >>>>>> exchange between them.
> >>>>>> Please find the two graphs (from earlier) attached on my Google
> >>>>>> Drive. Please let me know if you have an alternative way to share
> files.
> >>>>>>
> >>>>>>
> https://drive.google.com/file/d/1Gy8XQi153Fi5Zm9gUdsP_co8fSuh1HjL/view?usp=sharing
> >>>>>>
> >>>>>>
> https://drive.google.com/file/d/1_Fbg8OmWhlsOKfalfIEwKxGIl97a1kQ5/view?usp=sharing
> >>>>>>
> >>>>>> @Arthur When I tried to perform a GC from JConsole I got the
> >>>>>> following:
> >>>>>>
> >>>>>> Exception in thread "MemoryPanel.gc" java.lang.SecurityException:
> >>>>>> User not authorized to access operation: gc
> >>>>>>
> >>>>>
>

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