· May 26

What is the %SYS.Monitor.Control.1 process doing with journal files?

In the Windows Ressource Manager I can observe multiple parallel processes coming from cache.exe with read operations to journaling files.

All except one of these processes have the same reads(Byte/s). The processes point to different journal files and constantly read between 200 and 3000 Bytes/s.

The corresponding process via PID in the management portal of Caché shows the process %SYS.Monitor.Control.1. In 3 days of uptime on the server it has run 181.632.583 commands and modified 32.140.642 globals. 

These processes are not writing to the journal at any point. I can see a seperate process that does all the writing to the current journal without having any reads.

What kind of process would read old journaling files without a rollback happening? Can you disable it?  

Product version: Caché 2018.1
$ZV: Cache for Windows (x86-64) 2018.1.7 (Build 721U) Fri Mar 18 2022 22:07:35 EDT
Discussion (2)2
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This process is related to the Caché System Monitor. Monitors various resources, including the Journal.

"Caché System Monitor is a flexible, user-extensible utility used to monitor a Caché instance and generate notifications when the values of one or more of a wide range of metrics indicate a potential problem."

You can Stop them or customize the Sampling Interval for your environment.

See more in the documentation Caché System Monitor  and Caché Monitor