article How to set up CPU affinity for Master Data Management on Linux in Official Support Articles

How to set up CPU affinity for Master Data Management on Linux

TalendSolutionExpert — Tue, 06 Feb 2024 15:10:57 GMT

Overview

Due to Talend Master Data Management (MDM) licensing restrictions, you may be required to set up CPU affinity.

Prerequisite

A MDM Server service must be enabled.

Steps to proceed with systemctl

Edit the /etc/systemd/system/talend-mdm-7.0.1.service file, and add a new line in the Service section:
```
CPUAffinity=<cpu id>
```
This parameter takes a list of CPU indices or ranges separated by either whitespace or commas. CPU ranges are specified by the lower and upper CPU indices separated by a dash.
Reload the systemctl daemon:
```
systemctl daemon-reload
```

Start the service:

systemctl start talend-mdm-7.0.1.service

Steps to proceed with legacy service

Edit the /etc/init.d/talend-mdm-6.0.1 file, and update the function start():
```
taskset -a -c <cpu id> ./start_mdm.sh
```
This parameter is used to specify a numerical list of processors. The list may contain multiple items, separated by commas and ranges, for example, 0, 5, 7, 9-11.
Start the service:
```
service talend-mdm-6.0.1 start
```

Retrieve a process's CPU affinity

Check the status of the service to get the PID of the MDM Server:
```
systemctl status talend-mdm-7.0.1.service
```
Or use this command:
```
ps -ef |grep mdm
```
Use the taskset command to get the current affinity list:
```
taskset -c -p <PID>
```