yp_all RPC clnt_call (transport level) failure

Cause

At random times, a slave NIS server has a problem that causes ypbind(1M) to report: ypserver not responding and the machine must be rebooted. The syslog contains:

Dec 14 07:11:03 rahab syslog: yp_all - RPC clnt_call (transport level) failure:
RPC: Unable to receive; An event requires attention

Action

To workaround, increase the file descriptor limit in the yp startup script, /etc/rc2.d/S71rpc. Add this to the script before ypserv is started:

	ulimit -n 256