Eclipse (Swing or WebUI) use 100 % cpu

[dadan su]

Hi, community.

I use eclipse juno and idempiere 4.1. After run swing client or idempiere server from eclipse , after 2-3 hours , the computer is very slow, and eclipse (java) use 100 % cpu.
Anyone experience with this ? What does cause it ?
I cannot have problem if i run old compiere from this eclipse juno.
What does background process after 2-3 hours running idempiere from eclipse ? Please help.


Dadan.

[Victor Suárez]

I have an i3 processor, 6GB of RAM, Java 8, Debian, eclipse neon, and I've never had that problem. 

What resources does your computer have?

Regards.

[dadan su]

Hi, Victor S.

My computer spec is i7, 16 GB of RAM, java 8, Windows 10, eclipse juno.
Ok, I will try to upgrade eclipse to Neon , maybe it is juno bug ?
Thanks.

Dadan.

[dadan su]

I tried to use eclipse neon , and problem is still same.
Exactly after 2 hour , web ui or swing client will use almost 100 % cpu. Is there any idempiere background process every 2 hours ?

This is screenshot from jvisualvm

[dadan su]

Apparently the cause is hazelcast. anybody know how to fix it ? how to disable hazelcast in idempiere ? 

Here is the log top thread when the cpu is 100 % :

182.8% CPU Usage by Thread 'hz._hzInstance_1_adempiere.idempiere19072017/ASUSROG.IO.thread-out-1'
  10/10 snapshots sharing following 3 elements
    sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    com.hazelcast.nio.tcp.AbstractIOSelector.run(AbstractIOSelector.java:133)

181.3% CPU Usage by Thread 'hz._hzInstance_1_adempiere.idempiere19072017/ASUSROG.IO.thread-in-2'
  8/10 snapshots sharing following 7 elements
    sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
    sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296)
    sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278)
    sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159)
    sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    com.hazelcast.nio.tcp.AbstractIOSelector.run(AbstractIOSelector.java:133)
  2/10 snapshots sharing following 6 elements
    sun.nio.ch.WindowsSelectorImpl.resetWakeupSocket0(Native Method)
    sun.nio.ch.WindowsSelectorImpl.resetWakeupSocket(WindowsSelectorImpl.java:473)
    sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:174)
    sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    com.hazelcast.nio.tcp.AbstractIOSelector.run(AbstractIOSelector.java:133)

176.6% CPU Usage by Thread 'hz._hzInstance_1_adempiere.idempiere19072017/ASUSROG.IO.thread-in-0'
  4/10 snapshots sharing following 6 elements
    sun.nio.ch.WindowsSelectorImpl.resetWakeupSocket0(Native Method)
    sun.nio.ch.WindowsSelectorImpl.resetWakeupSocket(WindowsSelectorImpl.java:473)
    sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:174)
    sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    com.hazelcast.nio.tcp.AbstractIOSelector.run(AbstractIOSelector.java:133)
  5/10 snapshots sharing following 7 elements
    sun.nio.ch.WindowsSelectorImpl$SubSelector.poll0(Native Method)
    sun.nio.ch.WindowsSelectorImpl$SubSelector.poll(WindowsSelectorImpl.java:296)
    sun.nio.ch.WindowsSelectorImpl$SubSelector.access$400(WindowsSelectorImpl.java:278)
    sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:159)
    sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    com.hazelcast.nio.tcp.AbstractIOSelector.run(AbstractIOSelector.java:133)
  Unique snapshot
    java.lang.Object.notifyAll(Native Method)
    sun.nio.ch.WindowsSelectorImpl$StartLock.startThreads(WindowsSelectorImpl.java:189)
    sun.nio.ch.WindowsSelectorImpl$StartLock.access$300(WindowsSelectorImpl.java:181)
    sun.nio.ch.WindowsSelectorImpl.doSelect(WindowsSelectorImpl.java:153)
    sun.nio.ch.SelectorImpl.lockAndDoSelect(SelectorImpl.java:86)
    sun.nio.ch.SelectorImpl.select(SelectorImpl.java:97)
    com.hazelcast.nio.tcp.AbstractIOSelector.run(AbstractIOSelector.java:133)

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[Victor Suárez]

Hi Dadan. 

I also think the problem is Hazelcast, but I do not see that consumption, although I have much less resources. It's very strange, your iDempiere is updated?

Regards!.

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[dadan su]

Hi, Victor

Yes, my idempiere is the latest update. May be the problem is windows 10 ? The strange thing that it's exactly 2 hours after running client/server, the hazelcast is going crazy.

Dadan.

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[dadan su]

Yes, i have do it. And the problem is gone. Thank you.

Dadan.

On Fri, Sep 8, 2017 at 10:28 AM, Anozi Mada <anoz...@gmail.com> wrote:

If you want to disable hazelcast in your eclipse you can go to Run/Debug Configurations, go to tab Plug-ins, and uncheck hazelcast related plugin/fragment.

Regards,
Anozi Mada

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[Victor Suárez]

May be Windows 10 the problem. I was reading and other people have had problems with Hazelcast in W10.