[zeromq-dev] Too many open files (signaler.cpp:330)

[Chuck Remes]

On Jan 4, 2012, at 7:21 AM, Martin Sustrik wrote:

> Hi Chuck,
> 
>> This is on OSX. I have the open file limit set to 400k. I have
>> modified src/config.hpp MAX_SOCKETS to be 51200. I get this assertion
>> after opening around 2800 0mq sockets and closing 1500 of them, so I
>> am *nowhere near* the FD limit or the max socket limit.
> 
> That's strange. 2800 sockets should use 5600 fds for socketpairs + the 
> fds for the actual connections etc.

That's what I thought too which leads me to think this might be a side effect of something else.

>> Any suggestions on a printf I could add to the library to help narrow
>> down the cause of this?
> 
> src/signaler.cpp:329

What elements should I printf? Is the +sv+ variable important? What values should it have (or not have)? 

Is there a way to print the total number of FDs in use at that point in time? That is, can I add a counter ivar to the class and increment it in that function?

cr