Bug#708987: pacemaker cannot start nfs-kernel-server when /etc/exports is empty

Package: nfs-kernel-server
Version: 1:1.2.6-3

I use ocf:heartbeat:exportfs and lsb:nfs-kernel-server to manage nfs exports and nfs service resources in a pacemaker and corosync based Linux HA. In this situation, all the nfs exports are managed by the ocf:heartbeat:exportfs resource agent and /etc/exports is unused. However for fixing bug #673798, the nfs-kernel-server will not start when exports file is blank. This causes the failure of the whole HA.

-- System Information:
Debian Release: 7.0
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'stable')
Architecture: amd64 (x86_64)

Kernel: Linux 3.2.0-4-amd64 (SMP w/8 CPU cores)
Locale: LANG=en_AU.UTF-8, LC_CTYPE=en_AU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages nfs-kernel-server depends on:
ii libblkid1   2.20.1-5.3
ii libc6       2.13-38
ii libtirpc1   0.2.2-5
ii libwrap0    7.6.q-24
ii lsb-base    4.1+Debian8
ii nfs-common 1:1.2.6-3
ii ucf         3.0025+nmu3

nfs-kernel-server recommends no packages.

nfs-kernel-server suggests no packages.

-- Configuration Files:
/etc/init.d/nfs-kernel-server changed [not included]

-- no debconf information