try {
Periodical periodical = instantiationService.getInstance(type);
periodical.initialize();
if (periodical.masterOnly() && !serverStatus.hasCapability(ServerStatus.Capability.MASTER)) {
LOG.info("Not starting [{}] periodical. Only started on graylog2-server master nodes.", periodical.getClass().getCanonicalName());
continue;
}
if (!periodical.startOnThisNode()) {