MinIO supports persistent event store. The persistent store will backup events if MySQL connection goes offline and then replays the stored events when the broken connection comes back up. The event store can be configured by setting a directory path in `queue_dir` field, and the maximum number of events, which can be stored in a `queue_dir`, in `queue_limit` field. For example, `queue_dir` can be set to `/home/events` and `queue_limit` can be set to `1000`. By default, the `queue_limit` is set...

        final List<EventInfo> events = helper.fetchNewEvents();

        assertEquals(2, events.size());
        assertEquals("config_updated", events.get(0).name);
        assertEquals("node2@host2", events.get(0).instanceId);
        assertEquals("*", events.get(0).targetInstanceId);
        assertEquals(5000L, events.get(0).createdTime);
        assertEquals("web_config", events.get(0).data);

	}
	err = DB.Table("events").AutoMigrate(&Event2{})
	if err != nil {
		t.Errorf("AutoMigrate err:%v", err)
	}

	DB.Table("events").Save(&Event2{})
	DB.Table("events").Save(&Event2{})
	DB.Table("events").Save(&Event2{})

	events := make([]*Event, 0)
	DB.Table("events").Find(&events)

	AssertEqual(t, 3, len(events))
	for _, v := range events {
		AssertEqual(t, v.ID, v.UID)
	}
}

        }
    }

    /**
     * Handle node unavailable events
     */
    private void handleNodeUnavailable(WitnessNotification notification) {
        log.warn("Node unavailable: {}", notification.getResourceName());
        // Could trigger failover logic here
    }

    /**
     * Handle node available events
     */
    private void handleNodeAvailable(WitnessNotification notification) {

    return connection
  }

  private class RecordingPushObserver :
    PushObserver,
    Lockable {
    val events = mutableListOf<Any>()

    @Synchronized fun takeEvent(): Any {
      while (events.isEmpty()) {
        wait()
      }
      return events.removeAt(0)
    }

    @Synchronized override fun onRequest(
      streamId: Int,
      requestHeaders: List<Header>,

		Size:        0,
		VersionID:   uuid.New().String(),
		IsLatest:    true,
		NumVersions: 4,
	}

	evaluator := NewEvaluator(lc)
	events := evaluator.eval([]ObjectOpts{opts}, time.Time{})
	event := events[0]
	if event.Action != TransitionAction {
		t.Fatalf("Expected %v action but got %v", TransitionAction, event.Action)
	}

):void 0===_.get(e,r)&&ce.event.add(e,r,Ne)}ce.event={global:{},add:function(t,e,n,r,i){var o,a,s,u,l,c,f,p,d,h,g,v=_.get(t);if($(t)){n.handler&&(n=(o=n).handler,i=o.selector),i&&ce.find.matchesSelector(J,i),n.guid||(n.guid=ce.guid++),(u=v.events)||(u=v.events=Object.create(null)),(a=v.handle)||(a=v.handle=function(e){return"undefined"!=typeof ce&&ce.event.triggered!==e.type?ce.event.dispatch.apply(t,arguments):void 0}),l=(e=(e||"").match(D)||[""]).length;while(l--)d=g=(s=De.exec(e[l])||[])[1],h...

    an internal rewrite of our event code to fix problems where events were lost or unbalanced.

 *  Fix: Don't leak a connection when a call is canceled immediately preceding the `onFailure()`
    callback.

 *  Fix: Apply call timeouts when connecting duplex calls, web sockets, and server-sent events.
    Once the streams are established no further timeout is enforced.

  integrity sha512-8guHBZCwKnFhYdHr2ysuRWErTwhoN2X8XELRlrRwpmfeY2jjuUN4taQMsULKUVo1K4DvZl+0pgfyoysHxvmvEw==

events@^3.2.0:
  version "3.3.0"
  resolved "https://registry.yarnpkg.com/events/-/events-3.3.0.tgz#31a95ad0a924e2d2c419a813aeb2c4e878ea7400"
  integrity sha512-mQw+2fkQbALzQ7V0MY0IqdnXNOeTtP4r0lN9z7AAawCXgqea7bDii20AYrIBrFd/Hx0M2Ocz6S111CaFkUcb0Q==

extend@^3.0.0:

):void 0===_.get(e,r)&&ce.event.add(e,r,Ne)}ce.event={global:{},add:function(t,e,n,r,i){var o,a,s,u,l,c,f,p,d,h,g,v=_.get(t);if($(t)){n.handler&&(n=(o=n).handler,i=o.selector),i&&ce.find.matchesSelector(J,i),n.guid||(n.guid=ce.guid++),(u=v.events)||(u=v.events=Object.create(null)),(a=v.handle)||(a=v.handle=function(e){return"undefined"!=typeof ce&&ce.event.triggered!==e.type?ce.event.dispatch.apply(t,arguments):void 0}),l=(e=(e||"").match(D)||[""]).length;while(l--)d=g=(s=De.exec(e[l])||[])[1],h...