ibarrac@scs.fiu.edu (Carlos Ibarra) (01/03/91)
We are using the automounter extensively in our campus. We just upgraded to SunOS 4.1.1 and find that every once in a while the automounter gets stuck at a non-interruptible wait. Presumably it is waiting for some NFS server to respond. I have noticed the load going up to around 36 with nothing running. What I would like to do is have it fail if the NFS server does not respond in a second or two. I thought the -soft option did this, but apparently, it does not. I tried putting in a retry=20 option (default is 10000), but it seems to be ignored when -soft is also specified. What mount options should I use in the automounter's NIS maps in order to have it fail when a very slow NFS server does not answer?
mike@uunet.uu.net (Mike Ubell) (01/09/91)
In article <1021@brchh104.bnr.ca> you write: >We are using the automounter extensively in our campus. We just upgraded >to SunOS 4.1.1 and find that every once in a while the automounter gets >stuck at a non-interruptible wait. Presumably it is waiting for some NFS >server to respond. I have noticed the load going up to around 36 with >nothing running. > >What I would like to do is have it fail if the NFS server does not respond >in a second or two. > >I thought the -soft option did this, but apparently, it does not. I tried >putting in a retry=20 option (default is 10000), but it seems to be >ignored when -soft is also specified. > >What mount options should I use in the automounter's NIS maps in order to >have it fail when a very slow NFS server does not answer? This shounds like you are automounting /usr/share/lib/zoneinfo (or one of its parents). Automount runs fine until it must print an error, like when a server does not respond, at which point it MUST (why?) timestamp its messages and therefore acess the zoneinfo. This cuases it to wait for itself. Most everything else will eventually run into automount and wait in a state that is counted as part of the load (I have a suspicion that things just acessing sockets get hung as well but have not done any conclusive experiments). Sun says "dont auto mount /usr/share" (why call it SHARE?). We automount /usr/share/man /usr/share/src and /usr/share/bin (a locally added directory) and distribute /usr/share/lib.
ANDYF@ruby.tufts.edu (ANDREW S. FIJALKOWSKI) (03/22/91)
This is a good question to pose on automounter and nfs. I am trying to cross-link 2 machines running SunOS 4.1.1; 1 is a SparcStation IPC and the other is a Sun 4-110 and they both have a 669 MB disk drive. The main problem that I am hitting is that things don't get mounted properly and the mounts disappear. Any solution for what to look for would be greatly appreciated.