I use openhab 2.5.5 (and I am moving to 2.5.9) on a raspberry pi v3.
I have a rather long rule that triggers every 30 seconds and I have just realized that sometimes it triggers twice : less frequently it triggers three times (At few milliseconds of distance).
val int nAppl = 8 // Global variable: number of controlled appliances
rule "ENEL MasterControl"
when
Time cron "0/30 * * * * ?" // Trigger control every 30 seconds
then
val String logLabel="ENELcnt MasterControl" //Rule name for logInfo
logInfo(logLabel,"************ Start MasterControl")
// long rule here
logInfo(logLabel,"************ Stop MasterControl")
end
Some times, when the rule triggers twice the access to a global variable gives an error
2020-10-11 16:30:18.370 [ERROR] [ntime.internal.engine.ExecuteRuleJob] - Error during the execution of rule 'ENEL MasterControl': The name 'nAppl' cannot be resolved to an item or type
This is not a big issue but I wonder why it happens.
May this behavior be due to some misconfiguration or to some limit of resources (too many rules?, too much ram allocated?)
Thank you