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ajermakovics / jvm-mon

Console-based JVM monitoring tool
https://ajermakovics.github.io/jvm-mon/
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TypeError: Cannot read property 'Id' of undefined #21

Open sic2 opened 6 years ago

sic2 commented 6 years ago

I got the following error while running jvm-mon. Not sure if there are logs I can inspect or not.

$ jvm-mon
TypeError: Cannot read property 'Id' of undefined
    at renderVmCharts (/usr/local/Cellar/jvm-mon/0.3/libexec/jvm-mon.js:174:25)
    at addData (/usr/local/Cellar/jvm-mon/0.3/libexec/jvm-mon.js:150:9)
    at Timeout._repeat (/usr/local/Cellar/jvm-mon/0.3/libexec/jvm-mon.js:204:5)
    at Timeout.wrapper [as _onTimeout] (timers.js:408:11)
    at tryOnTimeout (timers.js:224:11)
    at Timer.listOnTimeout (timers.js:198:5)
ajermakovics commented 6 years ago

Hmm, appears to be this line: https://github.com/ajermakovics/jvm-mon/blob/4d9a4fe21bf5283f2341a58b1b983b4eea8f597d/src/dist/jvm-mon.js#L173-L174 where 'vm' ends up undefined.

Does this happen on startup or after some action?

sic2 commented 6 years ago

This does not happen with all my java programs. Anyway, it happens as soon as I try to inspect a java process.

makaraset commented 6 years ago

I'm facing with this error too in centos.

ajermakovics commented 6 years ago

Unfortunately, I'm not able to reproduce this issue. Does it prevent you from monitoring all processes or just one?