java.lang.UnsatisfiedLinkError: sun.management.OperatingSystemImpl.getProcessCpuLoad()

[Baesken, Matthias]

Hi ,   the documentation  says :

https://docs.oracle.com/javase/8/docs/jre/api/management/extension/com/sun/management/OperatingSystemMXBean.html#getProcessCpuLoad--

getProcessCpuLoad

...

Returns:
the "recent cpu usage" for the Java Virtual Machine process; a negative value if not available.

So I think  we should provide the native function and return a negative value e.g. -1.0  on AIX  (instead of  not providing the native function and causing this  UnsatisfiedLinkError ),
 that's what we do in SAPJVM as well on AIX .

Currently I am not aware how to get the value on AIX (maybe the IBM developers have a recommendation).

Best regards, Matthias


> -----Original Message-----
> From: ppc-aix-port-dev [mailto:ppc-aix-port-dev-
> bounces at openjdk.java.net] On Behalf Of Evans, Martin
> Sent: Mittwoch, 13. Dezember 2017 19:12
> To: Volker Simonis <volker.simonis at gmail.com>
> Cc: ppc-aix-port-dev at openjdk.java.net
> Subject: RE: java.lang.UnsatisfiedLinkError:
> sun.management.OperatingSystemImpl.getProcessCpuLoad()
> 
> Hi Volker,
> 
> openjdk version "1.8.0-internal"
> OpenJDK Runtime Environment (build 1.8.0-internal-
> jenkins_2017_07_27_13_41-b00)
> OpenJDK 64-Bit Server VM (build 25.71-b00, mixed mode)
> 
> Downloaded from:
> https://adoptopenjdk.net/releases.html?variant=openjdk8#ppc64_aix
> 
> AIX : 7.1.0.0
> 
> Logstash : logstash-6.0.1
> 
> Kind regards,
> 
> Martin
> 
> -----Original Message-----
> From: Volker Simonis [mailto:volker.simonis at gmail.com]
> Sent: 13 December 2017 17:59
> To: Evans, Martin <Martin.Evans at kingfisher.com>
> Cc: ppc-aix-port-dev at openjdk.java.net
> Subject: Re: java.lang.UnsatisfiedLinkError:
> sun.management.OperatingSystemImpl.getProcessCpuLoad()
> 
> Hi Martin,
> 
> can you please be a little more specific:
> 
>  - which version of OpenJDK do you use (i.e. 'java -version')?
>  - which build do you use?
>    - if you build it yourself, from which repository did you build?
>    - if you didn't built it yourself, where did you download it from?
>  - on which version of AIX did you saw the problems?
> 
> Thank you and best regards,
> Volker
> 
> 
> On Wed, Dec 13, 2017 at 6:32 PM, Evans, Martin
> <Martin.Evans at kingfisher.com> wrote:
> > Hi,
> >
> >
> >
> > I’m getting an unsatisfied link error when using logstash on AIX but I
> > suspect the issue is with AIX or the JRE, the exception is:
> >
> >
> >
> > java.lang.UnsatisfiedLinkError:
> > sun.management.OperatingSystemImpl.getProcessCpuLoad()D
> >
> >                   getProcessCpuLoad at
> > sun/management/OperatingSystemImpl.java:-2
> >
> >                              <init> at
> > org/logstash/instrument/monitors/ProcessMonitor.java:40
> >
> >                              detect at
> > org/logstash/instrument/monitors/ProcessMonitor.java:79
> >
> >                            generate at
> > org/logstash/instrument/reports/ProcessReport.java:15
> >
> >
> >
> > this is the line in logstash:
> >
> >
> >
> > this.cpuProcessPercent =
> > scaleLoadToPercent(unixOsBean.getProcessCpuLoad());
> >
> >
> >
> > https://github.com/elastic/logstash/blob/master/logstash-core/src/main
> > /java/org/logstash/instrument/monitors/ProcessMonitor.java
> >
> >
> >
> >
> >
> > Could anybody help steer me in the right direction?
> >
> >
> >
> > Thanks
> >
> >
> >
> > Martin
> >
> >
> >
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