qbit/core/src/main/java/io/advantageous/qbit/events/impl/EventConnectorHub.java
@Override
    public void flush() {


        for (int index = 0; index < eventConnectors.size(); index++) {

            EventConnector eventConnector = null;
            try {
                eventConnector = eventConnectors.get(index);
                if (eventConnector instanceof ClientProxy) {
                    ServiceProxyUtils.flushServiceProxy(eventConnector);
                } else {
                    eventConnector.flush();
                }
            } catch (Exception ex) {
                logger.debug("problem sending event to event connector", ex);
                if (eventConnector instanceof RemoteTCPClientProxy) {
                    if (!((RemoteTCPClientProxy) eventConnector).connected()) {

                        eventConnectors.remove(eventConnector);
                    }
                }
            }
        }
    }
@Override
    public void flush() {


        for (int index = 0; index < eventConnectors.size(); index++) {

            EventConnector eventConnector = null;
            try {
                eventConnector = eventConnectors.get(index);
                if (eventConnector instanceof ClientProxy) {
                    ServiceProxyUtils.flushServiceProxy(eventConnector);
                } else {
                    eventConnector.flush();
                }
            } catch (Exception ex) {
                logger.debug("problem sending event to event connector", ex);
                if (eventConnector instanceof RemoteTCPClientProxy) {
                    if (!((RemoteTCPClientProxy) eventConnector).connected()) {

                        eventConnectors.remove(eventConnector);
                    }
                }
            }
        }
    }
Flushes the pool used to optimize flushing of IO operations.