This is similar to an issue I've observed with John and Gennadiy.
Running three different components from daq33 I got the following exception message:
Timeout sending Init transition to artdaq process ptb01 at sbn-daq01-priv:10100; try checking logfile sbn-daq01-priv:/log/ptb01-sbn-daq01-10100/ptb01-sbn-daq01-10100-20190604104907-4484.log for details Traceback (most recent call last): File "/software/products/artdaq_daqinterface/v3_06_02/rc/control/daqinterface.py", line 1940, in do_config self.do_command("Init") File "/software/products/artdaq_daqinterface/v3_06_02/rc/control/daqinterface.py", line 1301, in do_command raise Exception(make_paragraph("An exception was thrown during the %s transition." % (command))) Exception: An exception was thrown during the Init transition.
I was running on 2019-10-25, so would have expected a log file with a corresponding name. Note that the log file there is dated 2019-06-04. This file is not accessible from daq33 but it is under daq01. No log file for this component was created at all.
Overall I don't quite follow the logic of how some log files are only accessible on sbn-daq01 and some on sbnd-daq33. ptb is a component connected to sbn-daq01 and sbnd-daq33, and can run in both. Potentially I might be being misled by log files from older versions of the code.
We are running artdaq_daqinterface v3_06_02. This might have been an issue already solved or partially solved.
Sorry that I can't pinpoint a way to reproduce this.
#1 Updated by Iker de Icaza Astiz 3 months ago
I've investigated further.
I believe it has all to do with write permissions, it all makes sense now.
Can the default behaviour be changed so that new folders and the files therein have group read and write permissions? or some other way which will allow all user to write into a folder?
#2 Updated by Eric Flumerfelt 3 months ago
On artdaq-demo:bugfix/23477_qms_GroupWriteableDirectories, I have added logic to quick-mrb-start.sh where the daqlogs, daqdata, and run_records directories are created group writeable. I have also added an option to allow users to specify the location of the run_records directory.
#3 Updated by Iker de Icaza Astiz 3 months ago
Is artdaq-demo used inside here? Maybe I'm just misunderstanding, but I thought that the purpose of the demo was to kickstart a new project.
Currently if I start a run with a new combination of components/partition then a new folder will be created. Looking into our setup I've come across an issue were one of the nodes would not use the preferred /daq/log/ but the older one /log/, and create there folders with wrong permissions. I believe it's due to some issue in our setup, as it doesn't happen in another node.
However I can't work out why this is happening.
#6 Updated by John Freeman 3 months ago
The incorrect logfile reference you saw was fixed in Issue #23318, after DAQInterface v3_06_02 was released - given your write permissions issue, what you'd have seen using DAQInterface at the head of its develop branch was DAQInterface issuing an error message saying that it couldn't find the expected logfile. However, we discussed your suggestion at yesterday's artdaq meeting, and it was agreed that when DAQInterface first creates the logfile directories it should make them group-writeable, so that other users in your permissions group who try writing to those directories won't encounter the problems you've encountered in this issue. I'll implement that...
#7 Updated by John Freeman 3 months ago
- % Done changed from 0 to 100
- Status changed from New to Resolved
With commit d893d50a2183175cb5fea6712c239fc9b822c510 on feature/23477_better_directory_access, I've ensured that if the log directory defined in $DAQINTERFACE_SETTINGS doesn't exist, then it's created so that both the user running DAQInterface and the group the user's a member of have write access to the log directory; the same applies to the subdirectories of the log directory in which DAQInterface places run-numbered softlinks to the logfiles produced by artdaq.
However, I noticed that the subdirectories artdaq creates and to which it writes the logfiles do not have group permissions set. I've filed Issue #23491 so that this gets changed.