+1. For Java7, we can collect permgen, and for Java8, we can collect metaspace dumps.
On Fri, Mar 24, 2017 at 10:59 AM, Isuru Perera <isu...@wso2.com> wrote: > Hi Nira, > > I also thought that. I think may be we can do the version check also. I'm > hoping to do a review on the script. Since we rarely use that script to > debug issues. > > Thanks! > > On Fri, Mar 24, 2017 at 10:51 AM, Niranjan Karunanandham < > niran...@wso2.com> wrote: > >> Hi isuru, >> >> On Fri, Mar 24, 2017 at 10:38 AM, Isuru Perera <isu...@wso2.com> wrote: >> >>> Hi, >>> >>> It'll be useful to have those details. I think we can just update the >>> command to work in Java 8 for now. Connecting to the JVM to get these kinds >>> of stats will have an impact on the server, but it should be okay as we run >>> carbondump to debug the server. >>> >>> I think we must go through all commands in the carbondump and make sure >>> that all of those are still relevant for today. I can do that later. >>> >> Shouldn't we check if the server is running in Java 7 or Java 8 and then >> check accordingly? >> >> >>> >>> Thanks! >>> >>> Best Regards, >>> >>> On Thu, Mar 23, 2017 at 10:43 PM, Milinda Perera <milin...@wso2.com> >>> wrote: >>> >>>> Hi, >>>> >>>> In carbondump.sh [1] we retrieve permgen stats in Java Heap (jmap >>>> -permstat $PID) . Since Java 8 onwards, it is replaced by Metaspace and >>>> permstat option is no longer exists in jmap tool. >>>> >>>> Metaspace can be retrieved by: jmap -clstats <PID> >>>> >>>> Shall we remove permstat and replace with clstats or just remove >>>> retrieving permgen stats? Is Is it useful retrieving permstat or clstats >>>> to figure out errors? >>>> Whether it may effect on the running server? >>>> >>>> [1] https://docs.wso2.com/display/ADMIN44x/Capturing+System+Data >>>> +in+Error+Situations >>>> >>>> Thanks, >>>> Milinda >>>> >>>> -- >>>> Milinda Perera >>>> Senior Software Engineer; >>>> WSO2 Inc. http://wso2.com , >>>> Mobile: (+94) 714 115 032 <071%20411%205032> >>>> >>>> >>>> _______________________________________________ >>>> Dev mailing list >>>> Dev@wso2.org >>>> http://wso2.org/cgi-bin/mailman/listinfo/dev >>>> >>>> >>> >>> >>> -- >>> Isuru Perera >>> Associate Technical Lead | WSO2, Inc. | http://wso2.com/ >>> Lean . Enterprise . Middleware >>> >>> about.me/chrishantha >>> Contact: +IsuruPereraWSO2 >>> <https://www.google.com/+IsuruPereraWSO2/about> >>> >> >> Regards, >> Nira >> >> -- >> >> >> *Niranjan Karunanandham* >> Associate Technical Lead - WSO2 Inc. >> WSO2 Inc.: http://www.wso2.com >> >> > > > -- > Isuru Perera > Associate Technical Lead | WSO2, Inc. | http://wso2.com/ > Lean . Enterprise . Middleware > > about.me/chrishantha > Contact: +IsuruPereraWSO2 <https://www.google.com/+IsuruPereraWSO2/about> > -- *Kasun Gajasinghe*Associate Technical Lead, WSO2 Inc. email: kasung AT spamfree wso2.com linked-in: http://lk.linkedin.com/in/gajasinghe blog: http://kasunbg.org phone: +1 650-745-4499, 77 678 0813
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