tree ee997b180a79974e4280e5dd7fb573b2063d4e0a
parent 77fe64124ab57c2c753422b33abd2de1039e9108
author Vasyl Saienko <vsaienko@mirantis.com> 1542279530 +0000
committer Vasyl Saienko <vsaienko@mirantis.com> 1542279641 +0000

Rework logic for setting threads in my.cnf

This patch updates logic for setting the following parameters
  * innodb_read_io_threads
  * innodb_write_io_threads
  * wsrep_slave_threads

When they are set to 0 (default value) number of threads will be
calcullated dynamically based on number of CPU cores but not higher
than 12.

Default number for paralell percona backups is decreased to 1.

Change-Id: I8510a2dc90f6bcce8e2f7e7ff2fd93853fdf665c
Related-Prod: PROD-24979