Re: Performance issue 8.5.20 (metaspace related?)

2017-09-01 Thread Suvendu Sekhar Mondal
> 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. >

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-31 Thread Ing. Andrea Vettori
> On 31 Aug 2017, at 17:55, Christopher Schultz > wrote: > > -BEGIN PGP SIGNED MESSAGE- > Hash: SHA256 > > Andrea, > > On 8/30/17 4:13 PM, Ing. Andrea Vettori wrote: >>> On 30 Aug 2017, at 00:16, Christopher Schultz >>>

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-31 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 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 >>

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-31 Thread Ing. Andrea Vettori
> 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:

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-31 Thread Ing. Andrea Vettori
> 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

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-31 Thread Suvendu Sekhar Mondal
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:

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-30 Thread Ing. Andrea Vettori
> 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 >

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-30 Thread Ing. Andrea Vettori
> 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?

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-30 Thread Ing. Andrea Vettori
> 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:

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-30 Thread Ing. Andrea Vettori
> 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

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-30 Thread Suvendu Sekhar Mondal
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

RE: Performance issue 8.5.20 (metaspace related?)

2017-08-29 Thread Caldarale, Charles R
> 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 > &

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-29 Thread Christopher Schultz
-BEGIN PGP SIGNED MESSAGE- Hash: SHA256 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

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-29 Thread Mark Thomas
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 >>>

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-29 Thread Ing. Andrea Vettori
> 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

Re: Performance issue 8.5.20 (metaspace related?)

2017-08-29 Thread Suvendu Sekhar Mondal
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