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

[Volker Simonis]

Hi Martin,

this is a known problem. I've opened a bug for it in 2013 ("8030957:
AIX: Implement OperatingSystemMXBean.getSystemCpuLoad() and
.getProcessCpuLoad() on AIX" [1]), but unfortunately until now nobody
has fixed/implemented it :(

I agree with Matthias that we should at least provide empty stubs to
avoid hard crashes. Maybe somebody from our friends from IBM can step
in?

I'll also post this request to the AdoptOpenJDK Slack channel.

Regards,
Volker

[1] https://bugs.openjdk.java.net/browse/JDK-8030957

On Thu, Dec 14, 2017 at 1:18 PM, Baesken, Matthias
<matthias.baesken at sap.com> wrote:
> 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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