Corosync is a project to implement a production quality "revised bsd" licensed implementation of all core functionalities required by openais. the project implements cutting edge research on virtual synchrony to provide 100% correct operation in the face of failures or partitionable networks with excellent performance characteristics.

the application interface specification is a software api and policies which are used to develop applications that maintain service during faults.

this package contains the evs library, which is a library included in corosync.