Also important to know is that czmq uses an environment var
ZSYS_MAX_SOCKETS (default 1024) which limits the maximum number of
filedescriptors even when the process is allowed more.
from the man page:
// Configure the number of sockets that ZeroMQ will allow. The default
// is 1024. The actual limit depends on the system, and you can query it
// by using zsys_socket_limit (). A value of zero means "maximum".
// Note that this method is valid only before any socket is created.
CZMQ_EXPORT void
zsys_set_max_sockets (size_t max_sockets);
Rg,
Arnaud
On 5/16/19 6:01 PM, Doron Somech wrote:
File descriptor is being used for signaling.
If zactor would use thread safe sockets it would be unlimited.
On Thu, May 16, 2019, 18:51 Arnaud Loonstra <arn...@sphaero.org
<mailto:arn...@sphaero.org>> wrote:
Hi all,
I'm currently stress testing a setup with actors. What's the maximum
number of running zactors? As it's using inproc no file descriptors are
involved. I'm using this test:
// mega zactor test
zlist_t *spawned_act = zlist_new();
for (int i=0;i<507;i++)
{
zactor_t *act = zactor_new(echo_actor, "Hello actor");
assert(act);
zlist_append(spawned_act, act);
}
while(zlist_size(spawned_act) > 0)
{
zactor_t *dstr = zlist_pop(spawned_act);
zactor_destroy(&dstr);
}
If I go beyond 507 actors I receive an assert:
src/zsock.c:88: zsock_new_checked: Assertion `self->handle' failed.
Which traces back to:
self->handle = zsys_socket (type, filename, line_nbr);
Which is a wrapper for creating a zmq socket.
Any ideas why there's is this limit of 507 actors?
I also tried with my own actor library which adds pub/sub sockets to
the
actor. I then have a maximum of 252 actors.
Rg,
Arnaud
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