Pejorative ha
Ckerism for
Sun' s
Network File System (NFS). In any nontrivial network of Suns where there is a lot of NFS
Cross-mounting, when one Sun goes down, the others often freeze up. Some ma
Chine tries to a
CCess the down one, and (getting no response) repeats indefinitely. This
Causes it to appear dead to some messages (what is a
Ctually happening is that it is lo
Cked up in what should have been a brief ex
Cursion to a higher
spl level). Then another ma
Chine tries to rea
Ch either the down ma
Chine or the pseudo-down ma
Chine, and itself be
Comes pseudo-down. The first ma
Chine to dis
Cover the down one is now trying both to a
CCess the down one and to respond to the pseudo-down one, so it is even harder to rea
Ch. This situation snowballs very qui
Ckly, and soon the entire network of ma
Chines is frozen - worst of all, the user
Can' t even abort the file a
CCess that started the problem! Many of NFS' s problems are ex
Cused by partisans as being an inevitable result of its
statelessness, whi
Ch is held to be a great feature (
Criti
Cs, of
Course,
Call it a great
misfeature).
ITS partisans are apt to
Cite this as proof of
Unix' s alleged bogosity ITS had a working NFS-like shared file system with none of these problems in the early 1970s. See also
broadCast storm. [
Jargon File]
In addition suitable Contents:
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