> Profiling the code I have been able to find the cause of the big metaspace
> garbage…
> Due to a bug, we were not caching remote interfaces when connecting to jboss
> from the web sites. Other client kind was ok.
> Fixed this problem today, it’s a few hours that the system is running fine.
> I
> On 31 Aug 2017, at 17:55, Christopher Schultz
> wrote:
>
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>
> Andrea,
>
> On 8/30/17 4:13 PM, Ing. Andrea Vettori wrote:
>>> On 30 Aug 2017, at 00:16, Christopher Schultz
>>> wrote: RMI is known for flagrantly
>>> wasting permgen/metaspace
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Andrea,
On 8/30/17 4:13 PM, Ing. Andrea Vettori wrote:
>> On 30 Aug 2017, at 00:16, Christopher Schultz
>> wrote: RMI is known for flagrantly
>> wasting permgen/metaspace because of all the Proxy objects and
>> special throw-away Class objects it u
> On 29 Aug 2017, at 14:24, Mark Thomas wrote:
>
> On 29/08/17 13:09, Ing. Andrea Vettori wrote:
>>> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal wrote:
>>>
>>> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
>>> wrote:
- with a fresh started tomcat instance, the time it takes is
> On 31 Aug 2017, at 15:24, Suvendu Sekhar Mondal wrote:
>
> I will suggest that if you have some budget, please get a decent APM
> like AppDynamics, New Relic, Dynatrace to monitor your prod system
> 24x7x365. Trust me, you will be able to identify and solve this type
> of sporadic slowness issu
Andrea,
>> Sometimes Full GC were able to clean up some space from Metaspace but
>> only as part of a final last ditch collection effort:
>>
>> 43618.504: [Full GC (Last ditch collection) 1386M->250M(20G), 1.6455823
>> secs]
>> [Eden: 0.0B(6408.0M)->0.0B(6408.0M) Survivors: 0.0B->0.0B Heap:
>>
> On 30 Aug 2017, at 16:38, Suvendu Sekhar Mondal wrote:
>
>
> In Hotspot VM, Full GC will collect "dead" objects/classes from all
> the regions(Young, Old, Metaspace/PermGen). In the provided GC log, I
> can see that you had triggered Full GCs but Metaspace did not shrunk
> much. That clearly
> On 30 Aug 2017, at 01:13, Caldarale, Charles R
> wrote:
>
> Is it possible that the system is getting into swapping? The heap has been
> set to 20 GiB, but I didn't see any mention of how much actual memory the
> system has. Do you really need a 20 GiB heap? Sometimes smaller is better.
>
> On 29 Aug 2017, at 14:24, Mark Thomas wrote:
>
> On 29/08/17 13:09, Ing. Andrea Vettori wrote:
>>> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal wrote:
>>>
>>> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
>>> wrote:
- with a fresh started tomcat instance, the time it takes is
> On 30 Aug 2017, at 00:16, Christopher Schultz
> wrote:
>
>>>
>>> Another thing, is there any way you can measure the processing
>>> time in JBoss for each RMI calls?
>>>
>>
>> At the moment I’m not measuring the time on the jboss side but I’m
>> considering using a telemetry product in the
Andrea,
On Tue, Aug 29, 2017 at 5:39 PM, Ing. Andrea Vettori
wrote:
>> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal wrote:
>>
>> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
>> wrote:
>>> - with a fresh started tomcat instance, the time it takes is around 0,8
>>> seconds. Most of th
> From: Christopher Schultz [mailto:ch...@christopherschultz.net]
> Subject: Re: Performance issue 8.5.20 (metaspace related?)
> > > That sounds like a healthy behavior to me. That means GC is
> > > occurring and Metaspace is getting cleaned up. Why do you think
> &
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Andrea,
On 8/29/17 8:09 AM, Ing. Andrea Vettori wrote:
>> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal
>> wrote:
>>
>> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
>> wrote:
>>> - with a fresh started tomcat instance, the time it take
On 29/08/17 13:09, Ing. Andrea Vettori wrote:
>> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal wrote:
>>
>> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
>> wrote:
>>> - with a fresh started tomcat instance, the time it takes is around 0,8
>>> seconds. Most of the time is spent on the t
> On 29 Aug 2017, at 12:29, Suvendu Sekhar Mondal wrote:
>
> On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
> wrote:
>> - with a fresh started tomcat instance, the time it takes is around 0,8
>> seconds. Most of the time is spent on the two RMI calls the task does.
>> - with an instance t
Hello,
On Tue, Aug 29, 2017 at 2:54 PM, Ing. Andrea Vettori
wrote:
> Hello,
> W're running several instances of Tomcat 8.5.20 / JDK8.144 / CentOs7 on our
> company for various web sites in many hosts. Recently I’m trying to
> understand a performance problem we’re having on our e-commerce web s
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