Cooja OutOfMemory Error #2834
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Are your simulation timeline keeps moment of start, when crush?
As i remember messages-list, and timeline have limit of events amount. Is
that limit has bounded?
вс, 7 янв. 2024 г. в 08:09, Arshdeep Singh ***@***.***>:
… Dear Contiki-NG Developers,
I've encountered an issue while attempting to create a larger network in
Cooja. After a while, it consistently throws an OutOfMemory error in Java.
Is there a possibility of a memory leak within Cooja causing this problem?
Exception in thread "sim" java.lang.OutOfMemoryError: Java heap space
at java.base/java.util.Arrays.copyOf(Arrays.java:3482)
at java.base/java.util.ArrayList.grow(ArrayList.java:237)
at java.base/java.util.ArrayList.grow(ArrayList.java:244)
at java.base/java.util.ArrayList.add(ArrayList.java:483)
at java.base/java.util.ArrayList.add(ArrayList.java:496)
at org.contikios.cooja.plugins.TimeLine$MoteEvents.addRadioRXTX(TimeLine.java:2051)
at org.contikios.cooja.plugins.TimeLine$14.accept(TimeLine.java:929)
at org.contikios.cooja.plugins.TimeLine$14.accept(TimeLine.java:864)
at org.contikios.cooja.util.EventTriggers.trigger(EventTriggers.java:111)
at org.contikios.cooja.contikimote.interfaces.ContikiRadio.signalReceptionEnd(ContikiRadio.java:218)
at org.contikios.cooja.radiomediums.AbstractRadioMedium.lambda$new$0(AbstractRadioMedium.java:190)
at org.contikios.cooja.radiomediums.AbstractRadioMedium$$Lambda/0x00007f44b9f1cde0.accept(Unknown Source)
at org.contikios.cooja.util.EventTriggers.trigger(EventTriggers.java:111)
at org.contikios.cooja.contikimote.interfaces.ContikiRadio.doActionsAfterTick(ContikiRadio.java:340)
at org.contikios.cooja.contikimote.ContikiMote.execute(ContikiMote.java:131)
at org.contikios.cooja.motes.AbstractWakeupMote$1.execute(AbstractWakeupMote.java:67)
at org.contikios.cooja.Simulation.lambda$new$0(Simulation.java:226)
at org.contikios.cooja.Simulation$$Lambda/0x00007f44b9f20af8.run(Unknown Source)
at java.base/java.lang.Thread.runWith(Thread.java:1596)
at java.base/java.lang.Thread.run(Thread.java:1583)
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Hello, I am sorry I am new to Cooja, I am not sure I understand it. Can you please explain it a bit more. Thanks |
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@ArshdeepSingh18 is this a long running simulation? You can try to give the JVM a larger heap, change the |
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@pjonsson Thanks for the update. Yes, My experiment requires from 42 nodes to 64 nodes, all I did change the Xms to |
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Did the simulation run longer when you increased the size, or does it crash just as quickly as before? |
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@ArshdeepSingh18 based on what you have written, my guess is that Cooja is holding on to a lot of memory for a long time, and then the heap gets full and Cooja crashes. This is obviously not desirable behavior, but I'm not sure how to fix it; if we drop some of the data the timeline will not be complete. |
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As i remember, timeline have a limit of events, similar that for mote
messages list.
That limit surely works on old cooja - 2years ago. Maybe that has broken
since later rework.
ср, 10 янв. 2024 г., 13:53 Peter A. Jonsson ***@***.***>:
… @ArshdeepSingh18 <https://github.com/ArshdeepSingh18> based on what you
have written, my guess is that Cooja is holding on to a lot of memory for a
long time, and then the heap gets full and Cooja crashes.
This is obviously not desirable behavior, but I'm not sure how to fix it;
if we drop some of the data the timeline will not be complete.
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@pjonsson Sorry for the late reply, I completely understand that, do you think there can be a way around it? |
Dear Contiki-NG Developers,
I've encountered an issue while attempting to create a larger network in Cooja. After a while, it consistently throws an OutOfMemory error in Java. Is there a possibility of a memory leak within Cooja causing this problem?
Best Regards,
Arshdeep Singh
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