whatsup not working, pdsh working minus whatsup

[sfishback]

I have whatsup installed on RHEL7 but it’s not working. I was hoping you could assist.
See attached trace log

whatsup

whatsup: _output_mode: nodeupdown_load_data(): internal backend module error

rpm -qa | egrep "pdsh|whats|nodeup" | sort

libnodeupdown-1.14-8.el7.x86_64
libnodeupdown-clusterlist-genders-1.14-8.el7.x86_64
pdsh-2.31-1.el7.x86_64
pdsh-mod-genders-2.31-1.el7.x86_64
pdsh-mod-nodeupdown-2.31-1.el7.x86_64
pdsh-rcmd-ssh-2.31-1.el7.x86_64
whatsup-1.14-8.el7.x86_64

Steven Fishback
System Administrator
ITS-Research Computing
University of North Carolina-CH

trace.txt

[chu11]

Typically "internal backend module error" means something has just been setup incorrectly. It's most likely the backend for whatsup. Do you know which one you're using? My assumption is the pingd daemon since this comes from RHEL.

Are you using something to specify the nodes/hosts in your cluster?

If what I'm talking about makes no sense, there's a summary in the README. https://github.com/chaos/whatsup/blob/master/README

[sfishback]

This readme doesn't show genders as an option. Somewhere I thought I read genders was okay and also saw the nodeupdown_clusterlist_genders.so file. So I assumed I was okay.
Am I okay with using gernders or should I install libnodeupdown-backend-pingd or whatsup-pingd or both.

find /usr -name "nodeup"

/usr/lib64/pdsh/nodeupdown.so
/usr/lib64/libnodeupdown.so.0
/usr/lib64/libnodeupdown.so.0.1.0
/usr/lib64/nodeupdown
/usr/lib64/nodeupdown/nodeupdown_clusterlist_genders.so
/usr/share/doc/libnodeupdown-1.14
/usr/share/doc/libnodeupdown-clusterlist-genders-1.14

[chu11]

Genders is an option for listing hosts. Please see the README again.

pingd is probably your best bet. You need to install the whatsup-pingd subpackage and update /etc/pingd.conf (and perhaps also chkconfig the pingd daemon on, unclear to me what RHEL does by default).