spectrumgtw probe using near 99% of the CPU

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Sometimes, users will see the spectrumgtw probe use between 80% - 90% of the CPU. Often this will only occur during the first few hours of the probe's operation after a restart - after sometime, the usage will go down.

Environment

This information is generally applicable to most versions of UIM and spectrumgtw.

Cause

When the probe is first enabled, it executes a synchronization process related to inventory discovery. This can be a high usage process, particularly in large environments.

Resolution

To help alleviate this, the memory allocated to the probe needs to be increased.

Open the raw configuration of the probe and check the 'startup' section to see what is currently configured.

By default, the probe is set to:

-Xms32m -Xmx1536m -Duser.language=en -Duser.country=US

Depending on the size of the environment, the general recommendation is to raise this between 4gb to 6gb. Here is what the entry would look like for each:

4gb
-Xms32m -Xmx4096m -Duser.language=en -Duser.country=US

6gb
-Xms32m -Xmx6144m -Duser.language=en -Duser.country=US
...

This has been proven to help the probe through the synchronization process and keep the CPU usage at more reasonable levels.