[collectd] JVM statistics collection?

[Stephen Hillier]

Well, I'm getting some odd compile errors with the latest src release (4.5):

libip6tc.c:141: error: 'const struct in6_addr' has no member named in6_u

I'm working it out now, but it will delay my testing.

steve

-----Original Message-----
From: Justo Alonso [mailto:justo.alonso at gmail.com]
Sent: Wednesday, October 15, 2008 10:33 AM
To: Stephen Hillier
Subject: Re: [collectd] JVM statistics collection?

On Wed, Oct 15, 2008 at 4:27 PM, Stephen Hillier
<shillier at halogensoftware.com> wrote:
> I'll try to get something up and running in my test lab today. I'll let you know how it works.
>
ok !

> My setup requires an RMI connection, so I'm not sure if the code is far enough along to support my test environment, but I'll give it a shot anyway.
>

At this moment, the JMXCollectRMIConnector class only support
unathenticated conection and no ssl (I'm working on this). You must
setup the Java VM with the jmxremote parameters
(-Dcom.sun.management.jmxremote.port=XXXX
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false) and setup the instance in
the jmx plugin with "Address" and "Port" parameters".

> I'll send an update later when I've got some results to report.

please !
>
> Thanks,
> Steve.
>
justo
>
> -----Original Message-----
> From: Justo Alonso [mailto:justo.alonso at gmail.com]
> Sent: Wednesday, October 15, 2008 7:31 AM
> To: Florian Forster
> Cc: collectd at verplant.org; Stephen Hillier
> Subject: Re: [collectd] JVM statistics collection?
>
> Hi !
>   at the end ... I have a operational jmx plugin to collect jvm statistics. Please, someone can check it ??
>
>   I use snmp plugin to cut and paste, thanks Florian .. ;-)
>
> How it work.
>  compile:
>       I added a -with-java to configure script, to add jmx support
> add: --with-java=JAVA_HOME
>  Configure:
>      configure jvm options (classpath and options), create data list, create instance list
>  Init:
>      setup JNI link to Java VM.
>      Foreach instance, create a connector of class defined in instance options and pass instance parameters to the object.
>      Foreach data in instance (collect parameter), add this data to this instance with data parameters.
>      Create threads to read data
>  Read (in thread):
>      Foreach data in instance, call java method collect(dataname) on
> instance->connector object. This return a java.lang.String array
>      Foreach string, parse it and dispatch value of the data->type
>
>
> TODO
> - Make new data class to get stats (tomcat related, garbage collector, etc...)
> - Check memory-leaks
> - Add support for JMXCollectdRMIConnector for use user/password
> - Add support for JMXCollectdRMIConnector for local process
> - Add control error
> - Revise configure to check java VM and get includes and libs
>
> comments please !
> j
>
> On Fri, Sep 26, 2008 at 5:40 PM, Florian Forster <octo at verplant.org> wrote:
>> Hi Justo,
>>
>> On Fri, Sep 26, 2008 at 02:20:35PM +0200, Justo Alonso wrote:
>>> At this moment, I have problems to detect the java virtual machine
>>> and all includes and libs in the configure.in file .... the include
>>> and libs directory depends on platform and type of virtual machine
>>> ($JAVA_HOME/jre/lib/i386/client/libjvm.so or
>>> $JAVA_HOME/jre/lib/i386/server/libjvm.so for libs and
>>> $JAVA_HOME/jre/include/jni.h and $JAVA_HOME/jre/include/linux/jni_md.h).
>>> Anyone can help me ??
>>
>> I'll gladly help, but I have no clue about Java stuff, so you may need
>> to help me there ;)
>>
>> If present, we use a *-config script or `pkg-config' to determine the
>> location, flags and libs for a library. The `CURL' library provides
>> both, for example:
>> -- 8< --
>>  octo at huhu:~ $ curl-config --libs
>>  -L/usr/lib -lcurl -L/usr/lib -lgssapi_krb5 -lkrb5 -lk5crypto
>> -lcom_err -lkrb5support -lresolv -lidn -ldl -lgnutls -lz  octo at huhu:~
>> $ pkg-config --libs libcurl  -lcurl -lgssapi_krb5 -lkrb5 -lk5crypto
>> -lcom_err -lkrb5support -lresolv -lidn -ldl -lgnutls -lz
>> -- >8 --
>>
>> The first step would be to find out if such a script or pkg-config
>> file exists for the Java interface you're using. Checking for such
>> files can possibly done like this:
>>  $ find $JAVA_HOME -name '*-config' -or -name '*.pc'
>>
>> To check for the existence of the library, I'd need the name of one
>> `symbol' that's exported by the library. A `symbol' is basically every
>> function that's implemented in the library. Just pick *the central
>> function* the library provides, that'll do..
>>
>> Regards,
>> -octo
>> --
>> Florian octo Forster
>> Hacker in training
>> GnuPG: 0x91523C3D
>> http://verplant.org/
>>
>> -----BEGIN PGP SIGNATURE-----
>> Version: GnuPG v1.4.6 (GNU/Linux)
>>
>> iD8DBQFI3QJnHdggu3Q05IYRAp6IAJ9LAHYyLGu5O66meDU5CDnSMNTWDACeLUcj
>> m3XbIBAWZS87BhVRWbooS0g=
>> =NaJ3
>> -----END PGP SIGNATURE-----
>>
>>
>