Mantis - Resin
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ID: Category: Severity: Reproducibility: Date Submitted: Last Update:
5564 minor always 10-22-13 14:34 11-06-14 15:54
Reporter: alex Platform:  
Assigned To: ferg OS:  
Priority: normal OS Version:  
Status: closed Product Version:  
Product Build: Resolution: no change required  
Projection: none      
ETA: none Fixed in Version:  
Summary: 0005564: 503s sent to clients during node restarts
Description: rep by Ethan Larson
Steps To Reproduce:
Additional Information:
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Attached Files:  resin-503-during-shutdown.png [^] (67,907 bytes) 10-22-13 14:34

Notes
(0006557)
ferg   
11-06-14 15:54   
server/26t3

On a POST, this is expected behavior.

On the first request to a newly-closed server, the POST will fail with a 503. Following requests will failover to the backup server.

The POST itself cannot failover in this situation because the load-balancer cannot determine if the request has completed on the backend or not. To avoid issues like submitting a credit card twice automatically, POSTs are not retried.