Websocket blocks shutdown until connection times out (after ~10mins)

[Alex6323]

Bug description

2022-02-25 16:36:54 (UTC) bee_protocol::workers::metrics             INFO  NodeMetrics { invalid_packets: 0, milestone_requests_received: 29, messages_received: 340882, message_requests_received: 173, heartbeats_received: 5688, milestone_requests_sent: 709, messages_sent: 272610, message_requests_sent: 76363, heartbeats_sent: 7335, invalid_messages: 0, new_messages: 143837, known_messages: 197045, messages_average_latency: 349, referenced_messages: 143739, excluded_no_transaction_messages: 143221, excluded_conflicting_messages: 102, included_messages: 416, created_outputs: 599, consumed_outputs: 559, receipts: 0, transaction_payloads: 518, milestone_payloads: 1180, indexation_payloads: 142515, snapshots: 0, prunings: 980 }
2022-02-25 16:36:56 (UTC) bee_protocol::workers::status              INFO  Synchronized and confirmed at 2611303 - Tips 12.
2022-02-25 16:37:00 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-02-25 16:37:00 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=1): IO error: Connection timed out (os error 110)
2022-02-25 16:37:00 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 1 disconnected.
2022-02-25 16:37:00 (UTC) bee_node::plugins::dashboard               INFO  Stopped.
2022-02-25 16:37:00 (UTC) bee_node::fullnode                         DEBUG Stopping worker bee_node::plugins::version_checker::VersionChecker...
2022-02-25 16:37:00 (UTC) bee_node::plugins::version_checker         INFO  Stopped.
2022-02-25 16:37:00 (UTC) bee_node::fullnode                         DEBUG Stopping worker bee_tangle::tip_pool_cleaner_worker::TipPoolCleanerWorker...
2022-02-25 16:37:00 (UTC) bee_tangle::tip_pool_cleaner_worker        INFO  Stopped.

Rust version

rustc 1.57.0 (f1edd0429 2021-11-29)

VPS

[Alex6323]

If you close the dashboard then after a certain timeout period finally this happens and the node shuts down:

2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=9): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 9 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=2): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 2 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=13): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 13 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=16): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 16 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=11): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 11 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=5): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 5 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=3): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 3 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=10): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 10 disconnected.
2022-03-03 08:54:29 (UTC) warp::filters::ws                          DEBUG websocket poll error: IO error: Connection timed out (os error 110) 
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=4): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 4 disconnected.
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    ERROR websocket error(uid=8): IO error: Connection timed out (os error 110)
2022-03-03 08:54:29 (UTC) bee_node::plugins::dashboard::websocket    DEBUG User 8 disconnected.

Why does it create so many users in the first place?