tomcat-users mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Suvendu Sekhar Mondal <suv3...@gmail.com>
Subject Re: How to enable Native Memory Tracking(NMT) in Tomcat?
Date Fri, 03 Mar 2017 06:20:06 GMT
Mark,
I am running Tomcat as a Windows service.

Thanks!
Suvendu

On Thu, Mar 2, 2017 at 8:08 PM, Mark Thomas <markt@apache.org> wrote:
> On 02/03/17 10:54, Suvendu Sekhar Mondal wrote:
>> Hello Everyone,
>>
>> I am new here. :)
>>
>> Environment:
>> Java Version: Java HotSpot(TM) 64-Bit Server VM version 25.91-b15
>> (Java version 1.8.0_91-b15)
>> Tomcat Version: Tomcat 8.0.20
>> OS Version: Microsoft Windows 8.1 Enterprise
>>
>> I am trying to enable Native Memory Tracking(NMT) to get internal
>> memory usage deatils about Tomcat process which is running on my
>> system. I have added following flags to Tomcat's Java options:
>> -XX:+UnlockDiagnosticVMOptions
>> -XX:NativeMemoryTracking=summary
>> -XX:NativeMemoryTracking=detail
>>
>> After that I restarted Tomcat. When I tried to use "VM.native_memory"
>> command either from JCMD or JMC, I am getting "Native memory tracking
>> is not enabled" message. When I shutdown Tomcat, following message is
>> getting printed on STDERR log:
>> "Java HotSpot(TM) 64-Bit Server VM warning: Native Memory Tracking did
>> not setup properly, using wrong launcher?".
>>
>> I found this article which discussed about NMT problem in custom JVM launcher:
>> https://blogs.oracle.com/poonam/entry/using_nmt_with_custom_jvm
>>
>> My question is, does that stands true for Tomcat also? Is there any
>> other way to enable NMT in Tomcat?
>
> No idea. How did you start Tomcat?
>
> Mark
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
> For additional commands, e-mail: users-help@tomcat.apache.org
>

---------------------------------------------------------------------
To unsubscribe, e-mail: users-unsubscribe@tomcat.apache.org
For additional commands, e-mail: users-help@tomcat.apache.org


Mime
View raw message