16 Jul
2016
16 Jul
'16
11 p.m.
Hi Markus,
The quickest way to debug this would be if you could use gdb on your
master machine. The steps should be as follows:
1. Install the debug package from
http://dcpomatic.com/downloads/2.9.0/ubuntu-14.04-64/dcpomatic-dbg_2.9.0-1_…
2. Start dcpomatic2_cli on your master with
gdb --args dcpomatic2_cli <whatever arguments you usually use> 2>&1 | tee log
e.g.
gdb --args dcpomatic2_cli my_great_dcp 2>&1 | tee log
3. When gdb starts, run the program by typing
run
4. Wait until it hangs, then press Ctrl-C and at the gdb prompt type
thread apply all bt
5. Send the "log" file to the list
Let me know if you can try that, and what happens! If not, I can send you
a debug version of DCP-o-matic to try.
Thanks,
Carl
On Sat, 16 Jul 2016, Markus Kalb via DCPomatic wrote:
Greetings DCPoMatic mailinglist,
I'm encountering an odd bug(?) during "cluster" encoding with 4
dcpomatic2_cli_server encoding servers and one master. The setup worked
for years without problems till now.
Complicating bug detection is that it works some times and gets stuck
other times. With the same source data!
Some Information about my setup
all using dcpomatic 2.9 (deb)
Running ubuntu 14.04
master (headless) + enc1 (kvm VM)
* amd64 8core 4GHz
* prep is done on different Desktop using
same path structure or with dcpomatic2_create
* dcpomatic2_cli is running with "only Enc Server"
options and there is a
dcpomatic2_server_cli -t 8 or -t14 on the same
VM
(results in much better frames/s when it works
compared to encoding it inside "dcpomatic2_cli"
on the master during cluster encode.
enc2 / enc3 / enc4 all ubuntu 14.04
* 4cores / 4cores / 2cores Hardware machines testing
different thread counts for cli_server with
-t 8 / -t 4 / -t 2
storage
* nfs
* debian 7.x (kvm VM)
All are conected with a hp pro curve 1GB lan
The syslog files on all machines only show normal messages!
The crazy part is that in about 95% of the stuck cases i can encode the
movie with only changing it with running "dcpomatic2_cli -r XXX"
I have included two dcpomatic log files with max debug options ...
--
Markus Kalb
06151-16-27 27 0
0177-240 98 95
mk(a)filmkreis.tu-darmstadt.de
Studentischer Filmkreis an der TU Darmstadt e.V.