Check_MK Werk 7245: New builtin tag group "piggyback" allows to explictly turn piggyback data usage on/off

ID: 7245 Title: New builtin tag group "piggyback" allows to explictly turn piggyback data usage on/off Component: WATO Level: 1 Class: New feature Version: 1.6.0i1 Piggyback data is currently only read when the host has a Check_MK service. For some systems, the existance of the Check_MK service solely depends on the existance of piggyback files for the given host. During the config generation phase of the monitoring core, race conditions could apply, where a host might receive no Check_MK service. This werk introduces an explicit piggyback host tag, which allows you to enforce/disable the use of piggyback data. Per default this option is currently set to <tt>Automatically detect piggyback usage</tt>, to be compatible with the previous behaviour. You should explictly set the <tt>Use piggyback data</tt> option if you have a ping only host, which receives additional piggyback data from another host. This actively prevents beforementioned race conditions.