This class communicates with the MogileFS trackers. You should not have to use this directly unless you are developing support for new commands or plugins for MogileFS
The last error
The string attached to the last error
add_command (*names) source
Adds MogileFS commands names.
add_error (err_snake) source
this converts an error code from a mogilefsd tracker to an exception:
Examples of some exceptions that get created:
class AfterMismatchError < MogileFS::Error; end class DomainNotFoundError < MogileFS::Error; end class InvalidCharsError < MogileFS::Error; end
add_idempotent_command (*names) source
adds idempotent MogileFS commands names, these commands may be retried transparently on a different tracker if there is a network/server error.
new (args) source
Creates a new MogileFS::Backend.
:hosts is a required argument and must be an Array containing one or more 'hostname:port' pairs as Strings.
:timeout adjusts the request timeout before an error is returned.
clear_cache (types = %w(all)) source
this command is special since the cache is per-tracker, so we connect to all backends and not just one
do_request (cmd, args, idempotent = false) source
Performs the cmd request with args.
error (err_snake) source
this converts an error code from a mogilefsd tracker to an exception Most of these exceptions should already be defined, but since the MogileFS server code is liable to change and we may not always be able to keep up with the changes
make_request (cmd, args) source
Makes a new request string for cmd and args.
parse_response (line, request = nil) source
Turns the line response from the server into a Hash of options, an error, or raises, as appropriate.
shutdown () source
Closes this backend's socket.
socket () source
Returns a socket connected to a MogileFS tracker.
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