BrokerService.checkSystemUsageLimits: Temporary Store limit is 51200 mb, whilst the temporary data directory only has 10112 mb of usable space

@mksrom yes the Event module has ActiveMQ embedded, see here: openmrs-module-event/EventEngine.java at 3461bef507b9021d7dbf1ea2d64a774f7a9a77b4 · openmrs/openmrs-module-event · GitHub

Did you identify that this is when things take long in the logs?