Going Away
1001 Going Away indicates the endpoint is 'going away' – a server is shutting down or restarting, or a browser tab is being closed. The connection was not completed abnormally, but the endpoint will not be available to continue. Clients receiving 1001 should attempt to reconnect after a delay.
Description
1001 is sent when the endpoint is shutting down gracefully but the client may wish to reconnect. Common scenarios: a server is being redeployed, a browser tab is navigating away, or a load balancer is draining connections before a restart. Unlike 1000, 1001 signals that the closure was forced by circumstance rather than task completion. Well-behaved clients implement exponential backoff reconnection on receiving 1001.
Common Causes
- –Server restart or deployment
- –Browser tab navigating away or closing
- –Load balancer draining connections
- –Server maintenance window starting
Code
1001
RFC
RFC 6455
Sent By
Both
Retry
Yes