On linux only: worked by stages to several repeated qrun each 500#<99 99 1 each ran to completion
FWIW, I had Chromium and tbird open while j was executing as above closed chromium and tbird went with it thereafter neither would open while qrun test was running. On 10/05/2017 03:43 PM, Eric Iverson wrote: > Pascal (and others interested in the qrun problem), > > I was happy when I was able to repeat the hang on my windows system. And > then it went away. A race condition that depends on the weather? > > I have updated zmq/jcs addons with an improved qrun that logs more info. > > ctrl+c can be very useful in working with zmq. It is best to use jconsole > in tracking down this problem. Jqt and JHS introduce unnecessary > complications. > > Windows also complicates this as its support for ctrl+c has some problems > vs zmq and sockets. > > In going over all the reports it seems that the problem is that one of the > early tasks started never finishes its first request. The problem seems to > be a race between starting the task and the first request to it. > > The new versions should help track this down. > > Please try the following and give back the results: > > 1. start jconsole > load'~addons/net/jcs/qrun.ijs' > qrun 99 99 1 > > Poll now has a timeout. If you see poll line repeated every 5 seconds, you > are likely hung waiting for something that isn't going to happen. The good > news is that your session should respond to ctrl+c within 5 seconds. > > qrun now writes a logfile that might have some hints as to the problem. > After qrun has hung, and you have done ctrl+c, take a look at: fread > logfile_jcs_ > > Please pass the contents of that file to me as it might hlep track this > down. > > *** > if it is a race between starting a task and sending it the 1st request, the > problem might 'go away' if we add a sleep between starting all the tasks > and starting any jobs. This is not a fix, but provides more info. > > If you can get the hang repeatedly, please see if you the following avoids > the hang. > > 2 qrun 99 99 2 NB. sleep 2 seconds before starting requests > > *** > Has anyone seen this problem on Linux? Can we say it is possibly a window > only problem? > ---------------------------------------------------------------------- > For information about J forums see http://www.jsoftware.com/forums.htm ---------------------------------------------------------------------- For information about J forums see http://www.jsoftware.com/forums.htm
