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

[TalendSolutionExpert]

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

1. 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.

   

2. Reload the systemctl daemon:

   systemctl daemon-reload

   

3. Start the service:

   systemctl start talend-mdm-7.0.1.service

   

Steps to proceed with legacy service

1. 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.

   

2. Start the service:

   service talend-mdm-6.0.1 start

   

Retrieve a process's CPU affinity

1. 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

2. Use the taskset command to get the current affinity list:

   taskset -c -p <PID>