 07 Feb 2022, Konstantin Olchanski, Forum, MidasWiki moved from ladd00 to daq00.triumf.ca and updated to MediaWiki 1.35
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MidasWiki moved from ladd00 (obsolete SL6) to daq00.triumf.ca (Ubuntu LTS 20.04)
and updated from obsolete MediaWiki LTS 1.27.7 to MediaWiki LTS 1.35, supported
until mid-2023, see https://www.mediawiki.org/wiki/Version_lifecycle
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26 Jan 2022, Frederik Wauters, Forum, .gz files
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I adapted our analyzer to compile against the manalyzer included in the midas repo.
All our data files are .mid.gz, which now fail to process :(
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 26 Jan 2022, Konstantin Olchanski, Forum, .gz files
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> I adapted our analyzer to compile against the manalyzer included in the midas repo.
> TMReadEvent: error: short read 0 instead of -1193512213
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31 Jan 2022, Frederik Wauters, Forum, .gz files
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> > I adapted our analyzer to compile against the manalyzer included in the midas repo.
> > TMReadEvent: error: short read 0 instead of -1193512213
>
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29 Jan 2022, Isaac Labrie Boulay, Forum, MIDAS and GRIF-16 digitizer (Standalone Mode).
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Hi all,
I was sent a version of the frontend for the TIGRESS Detector lab setup so that
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22 Oct 2021, Francesco Renga, Forum, mhttpd error
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Dear all,
I am trying to make the MIDAS web server for my DAQ project accessible from other machines. In the ODB, I activated the necessary flags:
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22 Oct 2021, Stefan Ritt, Forum, mhttpd error
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> Enable IPv6 y
Probably the IPv6 problem, see here elog:2269
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25 Oct 2021, Francesco Renga, Forum, mhttpd error
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It worked, thank you very much!
Francesco
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26 Jan 2022, Konstantin Olchanski, Forum, mhttpd error
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> > Enable IPv6 y
>
> Probably the IPv6 problem, see here elog:2269
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29 Oct 2021, Kushal Kapoor, Bug Report, Unknown Error 319 from client 
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I’m trying to run MIDAS using a frontend code/client named “fetiglab”. Run stops
after 2/3sec with an error saying “Unknown error 319 from client “fetiglab” on
localhost.
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26 Jan 2022, Konstantin Olchanski, Bug Report, Unknown Error 319 from client
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> I’m trying to run MIDAS using a frontend code/client named “fetiglab”. Run stops
> after 2/3sec with an error saying “Unknown error 319 from client “fetiglab” on
> localhost.
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01 Dec 2021, Lars Martin, Bug Report, Off-by-one in sequencer documentation
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The documentation for the sequencer loop says:
<quote>
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02 Dec 2021, Stefan Ritt, Bug Report, Off-by-one in sequencer documentation
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> The documentation for the sequencer loop says:
>
> <quote>
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26 Jan 2022, Konstantin Olchanski, Bug Report, Off-by-one in sequencer documentation
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> > 3 LOOP n,4
> > 4 MESSAGE $n,1
> > 5 ENDLOOP
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26 Jan 2022, Stefan Ritt, Bug Report, Off-by-one in sequencer documentation
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> Shades/ghosts of FORTRAN. c/c++/perl/python loops loop from 0 to n-1.
for (i=1 ; i<=10 ; i++); ;-) |
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26 Jan 2022, Konstantin Olchanski, Bug Report, Off-by-one in sequencer documentation
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> > Shades/ghosts of FORTRAN. c/c++/perl/python loops loop from 0 to n-1.
>
> for (i=1 ; i<=10 ; i++); ;-)
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09 Nov 2021, Francesco Renga, Forum, Issue in data writing speed
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Dear all,
I've a frontend writing a quite big bunch of data into a MIDAS bank (16bit output from a 4MP photo camera).
I'm experiencing a writing speed problem that I don't understand. When the photo camera is triggered at a low rate (< 2 Hz)
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10 Nov 2021, Stefan Ritt, Forum, Issue in data writing speed
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Midas uses various buffers (in the frontend, at the server side before the SYSTEM buffer, the SYSTEM buffer itself, on the
logger before writing to disk. All these buffers are in RAM and have fast access, so you can fill them pretty quickly. When
they are full, the logger writes to disk, which is slower. So I believe at 2 Hz your disk can keep up with your writing
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26 Jan 2022, Konstantin Olchanski, Forum, Issue in data writing speed
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Francesco, when you say "writing an event is slow", do you mean it in the frontend
or in the output data file?
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26 Jan 2022, Konstantin Olchanski, Forum, Issue in data writing speed
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> Francesco, when you say "writing an event is slow", do you mean it in the frontend
> or in the output data file?
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09 Nov 2021, Hunter Lowe, Forum, MityCAMAC Login
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Hello all,
I've recently acquired a MityCAMAC system that was built at TRIUMF and I'm
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11 Nov 2021, Thomas Lindner, Forum, MityCAMAC Login
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Hi Hunter
This sounds like a Triumf specific problem;
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26 Jan 2022, Konstantin Olchanski, Info, MityCAMAC Login
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For those curious about CAMAC controllers, this one was built around 2014 to
replace the aging CAMAC A1/A2 controllers (parallel and serial) in the TRIUMF
cyclotron controls system (around 50 CAMAC crates). It implements the main
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16 Dec 2021, Zaher Salman, Forum, Device driver for modbus
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| Dear all, does anyone have an example of for a device driver using modbus or modbus tcp to communicate with a device and willing to share it? Thanks. |
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26 Jan 2022, Konstantin Olchanski, Forum, Device driver for modbus
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> Dear all, does anyone have an example of for a device driver using modbus or modbus tcp to communicate with a device and willing to share it? Thanks.
I have not seen any modbus devices recently, so all my code and examples are quite old.
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19 Nov 2021, Jacob Thorne, Forum, Sequencer error with ODB Inc
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Hi,
I am having problems with the midas sequencer, here is my code:
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02 Dec 2021, Stefan Ritt, Forum, Sequencer error with ODB Inc
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Thanks for reporting that bug. Indeed there was a problem in the sequencer code which I fixed now. Please try the updated develop branch.
Stefan |
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29 Oct 2021, Frederik Wauters, Bug Report, midas::odb::iterator + operator
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I have 16 array odb key
{"FIR Energy", {
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29 Oct 2021, Frederik Wauters, Bug Report, midas::odb::iterator + operator | work around
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ok, so retrieving as a std::array (as it was defined) does not work
std::array<uint32_t,16> avalues = settings["FIR Energy"]["Energy Gap Value"];
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25 Oct 2021, Francesco Renga, Forum, Logger crash
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Hello,
I'm experiencing crashes of the mlogger program on the time scale of a couple
of days. The only messages from MIDAS are:
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25 Oct 2021, Stefan Ritt, Forum, Logger crash
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The short term solution would be to increase the logger timeout in the ODB under
/Programs/Logger/Watchdog timeout
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14 Oct 2021, Amy Roberts, Suggestion, Adding (or improving discoverability) of TID for odbset
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Creating an ODB key requires users to know the Type ID that are defined in
https://bitbucket.org/tmidas/midas/src/develop/include/midas.h starting at line 320.
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15 Oct 2021, Stefan Ritt, Suggestion, Adding (or improving discoverability) of TID for odbset
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> Creating an ODB key requires users to know the Type ID that are defined in
> https://bitbucket.org/tmidas/midas/src/develop/include/midas.h starting at line 320.
>
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11 Oct 2021, Konstantin Olchanski, Forum, midas forum updated, moved
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The midas forum software (elogd) was updated to latest version and moved from our old server
(ladd00.triumf.ca) to our new server (daq00.triumf.ca).
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11 Oct 2021, Konstantin Olchanski, Forum, test
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| test, no email. K.O. |
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11 Oct 2021, Konstantin Olchanski, Forum, test
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> test, no email. K.O.
test reply, no email. K.O. |
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11 Oct 2021, Konstantin Olchanski, Forum, test
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> > test, no email. K.O.
>
> test reply, no email. K.O.
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11 Oct 2021, Konstantin Olchanski, Forum, test
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> > > test, no email. K.O.
> >
> > test reply, no email. K.O.
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11 Oct 2021, Stefan Ritt, Info, Modification in the history logging system
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A requested change in the history logging system has been made today. Previously, history values were
logged with a maximum frequency (usually once per second) but also with a minimum frequency, meaning
that values were logged for example every 60 seconds, even if they did not change. This causes a problem.
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29 Sep 2021, Richard Longland, Bug Report, nstall clash between MIDAS 2020-08 and mscb
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Thank you, Stefan.
I found these instructions under
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29 Sep 2021, Stefan Ritt, Bug Report, nstall clash between MIDAS 2020-08 and mscb
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> Thank you, Stefan.
>
> I found these instructions under
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28 Sep 2021, Richard Longland, Bug Report, Install clash between MIDAS 2020-08 and mscb
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All,
I am performing a fresh install of MIDAS on an Ubuntu linux box. I follow the
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28 Sep 2021, Stefan Ritt, Bug Report, Install clash between MIDAS 2020-08 and mscb
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> 1) git clone https://bitbucket.org/tmidas/midas --recursive
> 2) cd midas
> 3) git checkout release/midas-2020-08
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19 Sep 2021, Stefan Ritt, Bug Fix, Chat working again
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Not sure how many people are using it, but the Chat facility in midas was broken
for some time now and got fixed today again.
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06 Sep 2021, Andreas Suter, Forum, mhttpd crash
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midas version used: midas-2019-05-cxx-1461-g906be8b
I find in the systemd log every couple of days/weeks the following error message related to the mhttpd:
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06 Sep 2021, Konstantin Olchanski, Forum, mhttpd crash
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> [mhttpd,ERROR] [mhttpd.cxx:18886:on_work_complete,ERROR] Should not send response to request from socket 28 to socket 26, abort!
> Can anybody hint me what is going wrong here?
> The bad thing on the crash is, that sometimes it is leading to a "chain-reaction" killing multiple midas frontends, which essentially stop the experiment.
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07 Sep 2021, Andreas Suter, Forum, mhttpd crash
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Dear Konstantin,
thanks for the prompt response, this helps a lot!
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17 Sep 2021, Stefan Ritt, Forum, mhttpd crash
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To limit the impact of the numerous crashes of mhttpd, I installed the monit tool at MEG at PSI
(https://en.wikipedia.org/wiki/Monit). It monitors mhttpd, and if it cannot connect to it for a certain
time, it kills the process and restarts it. This covers endless loops, simple crashes (caused by the
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