Wrong CPU wait usage values

[Abraxas]

Hi,

I have Monit 5.20.0 running on a Debian 9.11 machine.

It is sometimes reporting erroneous CPU wait time values:

[UTC Nov 7 16:53:30] error : 'sip4' cpu wait usage of 1133092362155720704.0% matches resource limit [cpu wait usage>80.0%]

[UTC Nov 7 16:53:32] info : 'sip4' cpu wait usage check succeeded [current cpu wait usage=0.2%]

[UTC Nov 7 18:22:42] error : 'sip4' cpu wait usage of 1145049276229877760.0% matches resource limit [cpu wait usage>80.0%]

[UTC Nov 7 18:22:45] info : 'sip4' cpu wait usage check succeeded [current cpu wait usage=0.2%]

[UTC Nov 7 19:06:05] error : 'sip4' cpu wait usage of 1145049276229877760.0% matches resource limit [cpu wait usage>80.0%]

[UTC Nov 7 19:06:07] info : 'sip4' cpu wait usage check succeeded [current cpu wait usage=0.1%]

[UTC Nov 8 03:15:09] error : 'sip4' cpu wait usage of 1144338991718334464.0% matches resource limit [cpu wait usage>80.0%]

[UTC Nov 8 03:15:11] info : 'sip4' cpu wait usage check succeeded [current cpu wait usage=0.2%]

[UTC Nov 8 03:59:08] error : 'sip4' cpu wait usage of 1145049276229877760.0% matches resource limit [cpu wait usage>80.0%]

[UTC Nov 8 03:59:11] info : 'sip4' cpu wait usage check succeeded [current cpu wait usage=0.3%]

[UTC Nov 8 04:56:50] error : 'sip4' cpu wait usage of 1142920965315887104.0% matches resource limit [cpu wait usage>80.0%]

[UTC Nov 8 04:56:52] info : 'sip4' cpu wait usage check succeeded [current cpu wait usage=0.1%]

The processor is

vendor_id : GenuineIntel

cpu family : 6

model : 158

model name : Intel(R) Xeon(R) CPU E3-1270 v6 @ 3.80GHz

stepping : 9

microcode : 0xb4

cpu MHz : 3294.384

cache size : 8192 KB

‌

Thank you,

Alex

[Tildeslash]

please upgrade monit to 5.29.0 ... there were several CPU usage fixes since 5.20.0, the problem is most likely resolved already

[Abraxas]

5.20 is the latest version available for Stretch

[Tildeslash]

You can either compile monit from source or use pre-build binary distribution (https://mmonit.com/monit/#download)