OH1 Some Lag on my Rules

Hi guys,

I’m facing some lags on my rules. The rule is very simple and the lag happens only on the first time the rule is used.

The rule is very simple:

rule "Incrementa Cena: Staff"
when
        Item scLight_Staff received command
then
        if (nuLight_StaffPos.state == 1)
        {
                sendCommand(nuLight_StaffPos, 2)

                sendCommand(swLight_Staff1, ON)
                sendCommand(swLight_Staff2, ON)
                sendCommand(swLight_Staff3, OFF)
        }
        else if (nuLight_StaffPos.state == 2)
        {
                sendCommand(nuLight_StaffPos, 3)

                sendCommand(swLight_Staff1, ON)
                sendCommand(swLight_Staff2, OFF)
                sendCommand(swLight_Staff3, OFF)
        }
        else if (nuLight_StaffPos.state == 3)
        {
                sendCommand(nuLight_StaffPos, 0)

                sendCommand(swLight_Staff1, OFF)
                sendCommand(swLight_Staff2, OFF)
                sendCommand(swLight_Staff3, OFF)
        }
        else
        {
                sendCommand(nuLight_StaffPos, 1)

                sendCommand(swLight_Staff1, ON)
                sendCommand(swLight_Staff2, ON)
                sendCommand(swLight_Staff3, ON)
        }
end

Basically I have an item named scLight_Staff that every time a push button is pressed, it’s value is updated (using MQTT). I use this rule to change the configuration of the lights on every press. Every day on the morning, the first time I press the push button, OH takes 2 seconds to process this rule. Here is the events log:

2017-01-12 07:26:04 - scLight_Staff received command 1
2017-01-12 07:26:06 - nuLight_StaffPos received command 1
2017-01-12 07:26:07 - swLight_Staff1 received command ON
2017-01-12 07:26:07 - swLight_Staff1 state updated to ON
2017-01-12 07:26:07 - swLight_Staff2 received command ON
2017-01-12 07:26:08 - swLight_Staff2 state updated to ON
2017-01-12 07:26:08 - swLight_Staff3 received command ON
2017-01-12 07:26:08 - swLight_Staff3 state updated to ON

Note that it took 3 seconds to turn the lights on. After the first time, if I press the pushbutton again it does process the rule on the same second and even if I wait one or two hours the rule is processed on the same second. The lag only happens after a long period without doing anything.

About my system:

I’m using OH 1.8.3 with jdk1.8.0_101 on a BeagleBone Black with Ubuntu 13.10. OH and mosquitto are the only services running on the board and the CPU usage is around 2% and memory at 21% (looking at java process on top).

Any ideias?

Thanks