Enhance XJob reliability spec
Enhance XJob reliability spec

1. What is the problem?
Currently we use cast method to trigger XJob daemon which we have
risk to lose jobs.

2. What is the solution to the problem?
Determine a solution to improve the reliability of XJob daemon. The
detailed discussion of the problems and the proposals to solve the
problems are covered in this specification.

3. What the features need to be implemented to the Tricircle
to realize the solution?
The proposed changes in this specification needs to be implemented.

Change-Id: Idf7ec52098393d668d1425a79807b235a1fc9960

stackforge/tricircle,stackforge/tricircle,openstack/tricircle,openstack/tricircle