Hi guys,
I just ran MAT([1]) over an HPROF heap dump on OOM in Bug 7370, and it
(MAT) raises a "leak suspect" in akka.dispatch.Dispatcher - see the [3]
java_pid19570_Leak_Suspects.zip just attached to Bug 7370 ... questions:
Is this perhaps something you jump at with an "ah that, we know about it
It looks like the Dispatcher was for data change notifications. I suspect a
listener was hung or responding slowly so the actor's mailbox filled up
with change notifications. I would suggest getting a thread dump next time.
On Mon, May 29, 2017 at 7:52 AM, Michael Vorburger
wrote:
> Hi guys,
>
>
+openflowplugin-dev & +ovsdb-dev:
Tom,
On Mon, May 29, 2017 at 2:57 PM, Tom Pantelis wrote:
Thanks a lot for replying, really appreciate it!
It looks like the Dispatcher was for data change notifications. I suspect a
> listener was hung or responding slowly so the actor's mailbox filled up
> w
yeah that looks like an issue. DeviceInitializationUtils is doing a
blocking get on a Future which is usually not a good thing. And it
occurred via an EOS data change and is blocking an akka Dispatcher
thread.
On a side note, there's a lot of threads with
io.netty.util.concurrent.FastThreadLocalTh
I agree with Tom.
Had experienced this earlier due to a laggard listener back before stable
carbon cut. Eventually , listener had got fixed (not in connection with this
observation but I had just picked up the build spaced well after the original
build) and I had not been able to repro the same
Regarding Netty ‘s io.netty.util.concurrent.FastThreadLocalThread observation
https://github.com/netty/netty/issues/6565
Issue seems very recent. Looking further what could be the reason
Regards
Muthu
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