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 Swarm received a request method not implemented. 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

This response indicates a request was received with an HTTP version other than HTTP/1.1. Swarm only supports HTTP/1.1.

Swarm Documentation

Undefined Responses from Swarm

Critical Error in Swarm

Unsupported Request

Unavailable Service

Unsupported HTTP Version