Based upon discussion, we will not be fixing this in Trusty. Updating the SysV scripts to be more error-proof is itself error-prone. Additionally, corosync on Trusty has not received significant updates, and this update itself would lead to at least an additional outage (in order to put the fix into place).
If, in the future, an additional security/bugfix update was to be applied to Trusty for corosync, we should revisit this.
Based upon discussion, we will not be fixing this in Trusty. Updating the SysV scripts to be more error-proof is itself error-prone. Additionally, corosync on Trusty has not received significant updates, and this update itself would lead to at least an additional outage (in order to put the fix into place).
If, in the future, an additional security/bugfix update was to be applied to Trusty for corosync, we should revisit this.