FIFO over NFS

saabir · #1 (**permalink**) 07-31-2003

Hi All
L2000-44
HP-UX 11.00

I am attempting to setup a FIFO over NFS. Directing and reading from the FIFO works fine on the local machine - however when I direct to the FIFO from a server which has the directory NFS mounted it does not work. The a process to read from the FIFO on the local server does not pickup the write (attempted write) to the FIFO.

Has anyone ever encountered this? Any solutions/ideas?

meteor06 · #2 (**permalink**) 08-05-2003

do you have the write permission on the nfs ?

saabir · #3 (**permalink**) 08-06-2003

Answering my own post subsequent to finding an answer - this is not actually possible. A FIFO is s kernel inter-process communication mechanism and as such it apparently alters the device map in the kernel on the local system. Because of this, writing to a FIFO across a NFS mount to a remote machine will not work because the local kernel is not aware of the FIFO in its device map.

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