Zabbix running-slave Check Does Blind Checks

[Jervin R]

The running-slave check from get_mysql_stats_wrapper.sh checks a MySQL server even if its not configured a slave. You can workaround this from Zabbix by possibly stacking templates but its redundant. My bug fix here is adding support for a node type file which the script consult and know what to do for different node types.

[Roman Vynar (roman-vynar)]

Those blind checks does not harm.
Such kind of a flag-file PERCONA_NODE_TYPE makes a node strictly set to master/slave role and does not tolerate failovers, e.g. one time this node is a master, other time - slave.