On Tue, 2015-10-27 at 10:52 +0000, Alan Burlison wrote:

> Unfortunately Hadoop isn't the only thing that pulls the shutdown() 
> trick, so I don't think there's a simple fix for this, as discussed 
> earlier in the thread. Having said that, if close() on Linux also did an 
> implicit shutdown() it would mean that well-written applications that 
> handled the scoping, sharing and reuse of FDs properly could just call 
> close() and have it work the same way across *NIX platforms.


Are non multi threaded applications considered well written ?

listener = socket(...);
bind(listener, ...);
listen(fd, 10000);
Loop 1 10
  if (fork() == 0)
    do_accept(listener)

Now if a child does a close(listener), or is killed, you propose that it
does an implicit shutdown() and all other children no longer can
accept() ?

Surely you did not gave all details on how it is really working.





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