helper.offer(new LogNotificationEvent(i, "ERROR", "org.test", "t" + threadId + "-" + i, null));
                        // Periodically drain
                        if (i % 50 == 49) {
                            List<LogNotificationEvent> drained = helper.drainAll();
                            totalDrained.addAndGet(drained.size());
                        }
                    }