I am having a rather strange problem. It seems that any sort of NIS request (ypcat, yppoll, ypmatch, etc.) starts an intense round of ypserv activity (as shown by top), which is then followed by the following error:
chinook:/etc/init.d# rpcinfo -p localhost
rpcinfo: can't contact portmapper: RPC: Remote system error - Resource
temporarily unavailable
In fact, the whole network stops working, though it does recover about
30 seconds later. When I look through syslog, I see the following:
Jun 24 01:54:56 chinook tcplogd: port 803 connection attempt from localhost [127
.0.0.1]
Jun 24 01:54:56 chinook tcplogd: port 788 connection attempt from chinook.stanfo
rd.edu [36.60.0.17]
Jun 24 01:55:20 chinook last message repeated 4367 times
Why would there be 4367 connections to port 788? Here's what rpcinfo
shows:
program vers proto port
100000 2 tcp 111 portmapper
100000 2 udp 111 portmapper
100021 1 udp 1024 nlockmgr
100021 3 udp 1024 nlockmgr
100021 1 tcp 1024 nlockmgr
100021 3 tcp 1024 nlockmgr
100005 1 udp 876 mountd
100005 1 tcp 878 mountd
100005 2 udp 881 mountd
100005 2 tcp 883 mountd
100003 2 udp 2049 nfs
100004 2 udp 785 ypserv
100004 1 udp 785 ypserv
100004 2 tcp 788 ypserv
100004 1 tcp 788 ypserv
100009 1 udp 786 yppasswdd
600100069 1 udp 788
600100069 1 tcp 790
100007 2 udp 793 ypbind
100007 1 udp 793 ypbind
100007 2 tcp 803 ypbind
100007 1 tcp 803 ypbind
So, it looks like ypbind is contacting ypserv 4367 times for some
unknown reason. The NIS server is running on a Debian potato machine
with kernel 2.2.10. There are 3 NIS clients on SunOS 4.1.3 machines,
but I don't think this has anything to do with this problem.
Has anyone run into something like this before?
Please cc me on all replies.
Thanks,
Max
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