Lucas Bordeau f6e182ac23 Handle SSE event stream reconnection (#17523)
This PR handles SSE event stream edge cases. 

- When a pod restarts, the front clients have to reconnect to SSE
- When the dev server restarts or is hot reloaded, the front client has
to reconnect to SSE
- When redis server restarts or the redis key is cleared for any reason,
the server has to recreate the event stream in redis, this can happen
when navigating for example.
- Log in / log out flow

With this PR we avoid error messages in the front end due to TTL or pod
crash, we implement a resilient way of reconnecting silently.

To avoid DDoSing our servers if pods crash or a full restart of the
cluster is made, we evenly space retry attempts to reconnect from all
the clients, to avoid n clients reconnection at the same time, we use a
random wait time between 0 and a constant max wait time (set to 2 mins
for now). This is the cheapest and most effective solution, clients who
want to force reconnect have to refresh or navigate to another page.

Fixes https://github.com/twentyhq/core-team-issues/issues/2045
2026-02-02 11:16:28 +00:00
2024-11-06 14:24:07 +01:00
2025-08-07 17:02:12 +02:00
2025-07-08 15:13:02 +02:00

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