# Reconnect storm

> A Realtime Hub restarted. Every client reconnected in the same second.

## What happens

A Realtime Hub restarted. Every client reconnected in the same second.

## How to prevent it

Reconnect jitter spreads the wave, and Clustering gives it more than one box.

The postmortem opens the first of these that you do not own yet:

- [WebSockets](https://wiki.playquorum.dev/research/websockets.md)

## Components it hits

[Realtime Hub](https://wiki.playquorum.dev/components/ws.md)

## Facts

SEV2 Reconnect storm
- **First Era:** [Series A](https://wiki.playquorum.dev/eras/series-a.md)
- **Starts at:** SEV2
- **Escalates to:** SEV1
- **Lasts:** 20 s

## See also

- [Incidents](https://wiki.playquorum.dev/incidents.md)

Source: https://wiki.playquorum.dev/incidents/reconnect