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Re: get_max_open_descriptors() is more generous than Nsock.
From: Henri Doreau <henri.doreau () greenbone net>
Date: Mon, 19 Dec 2011 13:56:03 +0100

Hi Luis,

2011/12/19 Luis MartinGarcia. <luis.mgarc () gmail com>:
nsock_core.c:186: Attempt to FD_SET fd 1024, which is not less than
FD_SETSIZE (1024). Try using a lower parallelism.

Has anyone experienced this behavior? Is nsock failing to determine the
maximum number of descriptors per process? Is it
get_max_open_descriptors()'s fault?

This is neither nsock nor netutil's fault. The problem is that
select(2) can't deal with more than FD_SETSIZE descriptors. This
number is usually set to 1024, regardless your system configuration
for resource limits. Removing this select(2)-related limitation was
one of my primary aims for writing nsock-engines.

Depending on how get_max_open_descriptors() is used it might make
sense to make the function return MIN(FD_SETSIZE, <rlimit>).


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