Nightmare File System
Pejor ATive hackerism 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 machine tries to access the down one, and (getting no response) repe ATs indefinitely. This causes it to appear dead to some messages (wh AT is actually happening is th AT it is locked up in wh AT should have been a brief excursion to a higher spl level). Then another machine tries to reach either the down machine or the pseudo-down machine, and itself becomes pseudo-down. The first machine to discover the down one is now trying both to access the down one and to respond to the pseudo-down one, so it is even harder to reach. This situ ATion snowballs very quickly, and soon the entire network of machines is frozen - worst of all, the user can' t even abort the file access th AT started the problem! Many of NFS' s problems are excused by partisans as being an inevitable result of its stATelessness, which is held to be a gre AT fe ATure (critics, of course, call it a gre AT 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: [ = ] [ abort ] [ ad ] [ ag ] [ al ] [ am ] [ an ] [ app ] [ ar ] [ arc ] [ arg ] [ as ] [ AT ] [ au ] [ av ] [ b ] [ ba ] [ be ] [ bo ] [ bogosity ] [ bot ] [ br ] [ broadcast ] [ broadcast storm ] [ by ] [ ca ] [ cast ] [ cc ] [ ch ] [ ci ] [ ck ] [ co ] [ com ] [ cr ] [ cu ] [ de ] [ dead ] [ disc ] [ do ] [ down ] [ du ] [ ec ] [ ed ] [ ee ] [ eg ] [ er ] [ es ] [ et ] [ feATure ] [ fi ] [ file ] [ file system ] [ finite ] [ fo ] [ for ] [ fr ] [ free ] [ freeze ] [ FS ] [ ge ] [ gh ] [ gr ] [ h ] [ hack ] [ hacker ] [ hAT ] [ hr ] [ id ] [ ie ] [ il ] [ in ] [ io ] [ ir ] [ is ] [ IT ] [ it ] [ ITS ] [ J ] [ Jargon File ] [ jo ] [ ke ] [ ki ] [ ld ] [ Lex ] [ li ] [ locked up ] [ ls ] [ lt ] [ ly ] [ M ] [ ma ] [ machine ] [ message ] [ misfeATure ] [ mo ] [ mod ] [ module ] [ mount ] [ ms ] [ N ] [ na ] [ ne ] [ net ] [ network ] [ Network File System ] [ NFS ] [ ng ] [ ni ] [ no ] [ nontrivial ] [ ns ] [ om ] [ oz ] [ pa ] [ pe ] [ ph ] [ pl ] [ pr ] [ proof ] [ pseudo ] [ pt ] [ query ] [ rc ] [ re ] [ repeAT ] [ rl ] [ ro ] [ S ] [ sa ] [ sc ] [ se ] [ sh ] [ shar ] [ si ] [ sit ] [ sm ] [ sn ] [ so ] [ st ] [ stATe ] [ stATeless ] [ storm ] [ su ] [ Sun ] [ sy ] [ system ] [ T ] [ table ] [ tar ] [ th ] [ to ] [ tr ] [ TS ] [ tt ] [ tw ] [ ua ] [ up ] [ us ] [ user ] [ ve ] [ vi ] [ wb ] [ zen ]
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