Hello ,
The errors provided are not problematic as they are "Scheduler Oinker" mesaages which is thown when the resources are freed in SRX .
But our main issue is that the dataplane failover is having traffic drops upto 60 Sec which is quit unacceptable .
So kindly share you device JUNOS version and if possible same config .
Also in SRX300 series the VLAN is relaced by IRB interface . So I hope the configuration is done accordingly .