ZeroMq IRC Log

Saturday October 30, 2010

[Time] Name	Message
[01:09] twomashi	using xreq/xrep sockets without a device, do I have to do all the routing myself?
[01:09] twomashi	im trying to replicate this:
[01:09] twomashi	http://www.mail-archive.com/zeromq-dev@lists.zeromq.org/msg02501.html
[01:10] twomashi	making a load balancing router using 2 XREP sockets
[01:22] pieterh	hi twomashi
[01:22] pieterh	have you read chapter 3 of the guide?
[01:22] twomashi	hey
[01:22] twomashi	perhaps not all of it.
[01:22] twomashi	I'll do that.
[01:22] mikko	hmm
[01:22] pieterh	it specifically covers custom routing using XREP
[01:23] mikko	epgm keeps giving Fatal: file ../foreign/openpgm/libpgm-5.0.91~dfsg/openpgm/pgm/include/impl/notify.h: line 120 (pgm_notify_init): assertion failed: (notify->pipefd[0])
[01:23] mikko	on first send
[01:23] mikko	start daemon, send from client -> fatal, send again -> all fine
[01:23] pieterh	mikko: using master?
[01:24] mikko	yep
[01:24] pieterh	there have been quite a lot of changes with OpenPGM/5
[01:24] mikko	ill ask steve-o as soon as hes in
[01:24] pieterh	twomashi, what Brian Granger described in that email is basically the key to all 'interesting' types of custom routing
[01:25] pieterh	Ch3 explains it in exhaustive detail, enjoy
[01:25] twomashi	ok, will do
[01:25] twomashi	thanks
[01:25] pieterh	np
[01:37] mikko	hmm, a lot of assertions with pgm
[01:37] pieterh	mikko: you might want to retry with 2.0.10 which iirc still uses OpenPGM/2
[01:38] pieterh	but I'm pretty sure if you can provide reproducible cases, Steve-o will find the causes
[01:38] mikko	seems intermittent
[01:39] pieterh	i suggest logging them anyhow
[01:40] pieterh	we're going to do some more intensive pgm tests next week
[01:40] pieterh	but the openpgm/5 integration to 0MQ is pretty new
[01:41] mikko	im trying to test whether epgm would be good fit for web site session handling
[01:41] mikko	write into local ipc pipe which distributes over epgm
[01:41] pieterh	sounds perfect
[01:41] mikko	gonna test zfl_hash soon as well
[01:42] pieterh	:-) great
[01:42] pieterh	you're working in C?
[01:42] mikko	yes
[01:42] pieterh	nice
[01:43] pieterh	i'm interested in critiques of the zfl design
[01:44] mikko	i was thinking about how well zfl_hash suits for in-memory storage
[01:44] mikko	a couple of GB per node
[01:44] pieterh	it's basically the hash container we built for OpenAMQ
[05:19] kev009	how does inproc compare to shared mem?
[07:43] sustrik	mikko: probably a wrong connection string
[07:44] sustrik	the second ip should a multicast group imo
[07:47] sustrik	kev009_: inproc uses local memory
[07:47] sustrik	it's more efficient than shared mem
[07:47] kev009	sustrik: hmm, how is that possible?
[07:48] kev009	shared memory being two threads with same address space rather than two processes with posix shm
[07:48] sustrik	then it's the same :)
[07:48] sustrik	i though you meant posix shmem
[07:49] kev009	in your opinion, is it easier than using pthreads mutex and reader/writer locks?
[07:52] sustrik	see here: http://www.zeromq.org/blog:multithreading-magic
[08:22] mikko	sustrik: i eventually found that out
[08:22] mikko	sustrik: still getting strange assertions
[08:30] mikko	https://gist.github.com/d5b4a204a8b344bd8286
[08:30] mikko	after epgm sub socket has been blocking on a recv() for a while
[08:30] mikko	seems very intermittent and can't reproduce easily
[12:17] lestrrat	mikko: updated perl binding to work with ithreads
[13:09] CIA-21	zeromq2: 03Martin Sustrik 07master * rb358df9 10/ (145 files in 8 dirs):
[13:09] CIA-21	zeromq2: Name of "GNU Lesser Public License" corrected.
[13:09] CIA-21	zeromq2: Signed-off-by: Martin Sustrik <sustrik@250bpm.com> - http://bit.ly/cp2wQM
[14:17] CIA-21	zeromq2: 03Martin Sustrik 07master * r3d8eb07 10/ (src/pgm_socket.cpp src/pgm_socket.hpp):
[14:17] CIA-21	zeromq2: Coding style fixed for pgm_socket
[14:17] CIA-21	zeromq2: Signed-off-by: Martin Sustrik <sustrik@250bpm.com> - http://bit.ly/bEpfm4
[16:18] CIA-21	zeromq2: 03Martin Sustrik 07master * r085b709 10/ (doc/zmq_close.txt doc/zmq_term.txt):
[16:18] CIA-21	zeromq2: Documentation for zmq_close and zmq_term fixed.
[16:18] CIA-21	zeromq2: Signed-off-by: Martin Sustrik <sustrik@250bpm.com> - http://bit.ly/cGpiDU
[16:28] mikko	lestrrat: it builds / tests OK now
[16:29] sustrik	great
[16:31] sustrik	the master version doesn't seem to build for some reason
[16:31] sustrik	xs/perl_zeromq.xs:484: error: too few arguments to function âPerlZMQ_Socket_createâ
[16:33] mikko	ZeroMQPerl-master_ZeroMQ2-master_GCC builds
[16:33] mikko	maint build for ZeroMQ2 core is running now
[16:33] mikko	so zeromq against maint will build soon
[16:33] sustrik	ah
[16:33] sustrik	sorry
[16:34] mikko	i had to make them in steps
[16:34] mikko	otherwise the queue gets a bit long
[16:34] sustrik	sure, i haven't checked the timestamp on the last bit
[16:34] mikko	master -> 17:00, maint -> 17:30 iirc
[16:35] sustrik	and there it goes!
[16:35] sustrik	nice
[16:41] mikko	i can't reproduce this epgm assertion with a simple program
[16:41] mikko	https://gist.github.com/be2adec61ea8bdc33ce3
[16:41] mikko	those are the ones i get intermittently
[16:42] sustrik	we are going to do some testing of pgm shortly so hopefully we'll get the assetion orselves
[16:45] sustrik	anyway, you can report the problem to the mailing list
[16:46] sustrik	maybe steve-o would be able to figure out what's going on
[18:23] daniel	greetings; I've downloaded zeromq, but I can't find any instructions on how to START the service
[18:23] daniel	how do I start zeromq daemon?
[18:25] daniel	I've checked the manual, but the first thing it does is dive right into the code
[18:25] daniel	and there isn't an admin section I can see
[18:26] daniel	and the INSTALL file is missing from the distirbution
[19:04] guido_g	there is no daemon
[19:05] sustrik	he've quit
[19:05] guido_g	thx
[19:05] guido_g	just noticed it
[19:06] sustrik	but he's right, INSTALL file is missing
[19:09] guido_g	saying "there is notihing to start, read the fine guide!" :)
[23:20] gandhijee	hey guys, i am trying to crosscompile ZeroMQ for arm-linux
[23:21] gandhijee	when ever i try, i get an error - http://pastebin.ca/1977628
[23:21] gandhijee	any ideas?
[23:34] gandhijee	??
[23:57] gandhijee	anyone even here?