This section describes HTTP requests sent to a storage cluster where the results are currently undefined. In most cases, one of the following error responses is sent by Swarm.
Critical error in Swarm
HTTP/1.1 500 Internal Server Error Date: Wed, 1 Sept 2012 15:59:02 GMT Server: CAStor Cluster 5.0.0 Allow: GET, HEAD, POST, PUT, DELETE Connection: close Content-Length: 27 Content-Type: text/html CRLF Message
Check your logs for more information and contact your support representative if necessary.
Unsupported request
HTTP/1.1 501 Not Implemented Date: Wed, 1 Sept 2012 15:59:02 GMT Server: CAStor Cluster 5.0.0 Allow: GET, HEAD, POST, PUT, DELETE Connection: close Content-Length: 56 Content-Type: text/html CRLF Swarm does not understand the request or does not yet implement this functionality.
This response indicates a request method was received that Swarm does not implement yet. Only the methods listed in the Allow header currently work in Swarm.
See SCSP Headers.
Unavailable service
HTTP/1.1 503 Service Unavailable Date: Wed, 1 Sept 2012 15:59:02 GMT Server: CAStor Cluster 5.0.0 Allow: GET, HEAD, POST, PUT, DELETE Connection: close Content-Length: 0 Content-Type: text/html
This response indicates Swarm received a request it did not understand or it does not have the resources to process the request. The client should resubmit the request at a later time or to a different node in the cluster.
Unsupported HTTP version
HTTP/1.1 505 HTTP Version not supported Date: Wed, 1 Sept 2012 15:59:02 GMT Server: CAStor Cluster 5.0.0 Allow: GET, HEAD, POST, PUT, DELETE Connection: close Content-Length: 0 Content-Type: text/html
This response indicates a request was received with an HTTP version other than HTTP/1.1. Swarm only supports HTTP/1.1.