 16 Jan 2024, Pavel Murat, Forum, a scroll option for "add history variables" window? 
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Dear all,
I have a "slow control" frontend which reads out 100 slow control parameters.
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 16 Jan 2024, Stefan Ritt, Forum, a scroll option for "add history variables" window?
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Have you updated to the current midas version? This issue has been fixed a while ago. Below
you see a screenshot of a long list scrolled all the way to the bottom.
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17 Jan 2024, Pavel Murat, Forum, a scroll option for "add history variables" window?
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> Have you updated to the current midas version? This issue has been fixed a while ago.
Hi Stefan, thanks a lot! I pulled from the head, and the scrolling works now. -- regards, Pasha |
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28 Jan 2024, Konstantin Olchanski, Forum, a scroll option for "add history variables" window?
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> > Have you updated to the current midas version? This issue has been fixed a while ago.
>
> Hi Stefan, thanks a lot! I pulled from the head, and the scrolling works now. -- regards, Pasha
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29 Jan 2024, Pavel Murat, Forum, a scroll option for "add history variables" window?
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> If you have some ideas on how to better present 100500 history variables, please shout out!
let me share some thoughts. In a particular case which lead to the original posting,
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29 Jan 2024, Konstantin Olchanski, Forum, a scroll option for "add history variables" window?
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familiar situation, "too much data", you dice t or slice it, still too much. BTW, you can try to generate history
plot ODB entries from your program instead of from the history plot editor. K.O. |
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22 Jan 2024, Ben Smith, Bug Report, Warnings about ODB keys that haven't been touched for 10+ years
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We have an experiment that's been running for a long time and has some ODB keys that haven't been touched in ages. Mostly related to features that we don't
use like the elog and lazylogger, or things that don't change often (like the logger data directory).
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22 Jan 2024, Stefan Ritt, Bug Report, Warnings about ODB keys that haven't been touched for 10+ years
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> What's the best way to make these messages go away?
> - Change the logic in db_validate_and_repair_key_wlocked() to not worry if keys are 10+ years old?
> - Write a script to "touch" all the old keys so they've been modified recently?
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23 Jan 2024, Nick Hastings, Bug Report, Warnings about ODB keys that haven't been touched for 10+ years
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Hi,
> What's the best way to make these messages go away?
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24 Jan 2024, Pavel Murat, Bug Report, Warnings about ODB keys that haven't been touched for 10+ years
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I don't immediately see a reason for saying that if a DB key is older than 10 yrs, it may not be valid.
However, it would be worth learning what was the logic behind choosing 10 yrs as a threshold.
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28 Jan 2024, Konstantin Olchanski, Bug Report, Warnings about ODB keys that haven't been touched for 10+ years
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> I don't immediately see a reason for saying that if a DB key is older than 10 yrs, it may not be valid.
>
> However, it would be worth learning what was the logic behind choosing 10 yrs as a threshold.
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28 Jan 2024, Stefan Ritt, Bug Report, Warnings about ODB keys that haven't been touched for 10+ years
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> Please run "git blame" to find out who added that check.
OK ok, was me. But actually 2003. I hope that this being more than 20y ago excuses me not remembering it ;-)
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11 Dec 2023, Pavel Murat, Forum, the logic of handling history variables ? 11x
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Dear MIDAS developers,
I'm trying to understand handling of the history (slow control) variables in MIDAS,
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11 Dec 2023, Stefan Ritt, Forum, the logic of handling history variables ?
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First of all it's important to understand that the slow control system has nothing to do
with events. So if you look at event statistics, these are the events with the slow control
data sent to the midas data file, not the history database. So the logging period (the one you
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12 Dec 2023, Pavel Murat, Forum, the logic of handling history variables ?
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Hi Sfefan, thanks a lot for taking time to reproduce the issue!
Here comes the resolution, and of course, it was something deeply trivial :
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13 Dec 2023, Stefan Ritt, Forum, the logic of handling history variables ?
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> Also, I think that having a sine wave displayed by midas/examples/slowcont/scfe.cxx
> would make this example even more helpful.
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28 Jan 2024, Konstantin Olchanski, Forum, the logic of handling history variables ?
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MIDAS history is very simple:
from your frontend, your write your history data to ODB /eq/xxx/variables (see below)
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10 Jan 2024, Pavel Murat, Forum, slow control frontends - how much do they sleep and how often their drivers are called?
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Dear all,
I have implemented a number of slow control frontends which are directed to update the
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11 Jan 2024, Stefan Ritt, Forum, slow control frontends - how much do they sleep and how often their drivers are called?
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Put a
ss_sleep(10);
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11 Jan 2024, Pavel Murat, Forum, slow control frontends - how much do they sleep and how often their drivers are called?
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Hi Stefan, thanks a lot !
I just thought that for the EQ_SLOW type equipment calls to sleep() could be hidden in mfe.cxx
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12 Jan 2024, Stefan Ritt, Forum, slow control frontends - how much do they sleep and how often their drivers are called?
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> Hi Stefan, thanks a lot !
>
> I just thought that for the EQ_SLOW type equipment calls to sleep() could be hidden in mfe.cxx
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28 Jan 2024, Konstantin Olchanski, Forum, slow control frontends - how much do they sleep and how often their drivers are called?
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> I have implemented a number of slow control frontends which are directed to update the
> history once in every 10 sec, and they do just that.
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17 Jan 2024, Francesco Renga, Forum, History tags
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Dear experts,
I would like to have some clarification about the meaning and use of the
tags in the ODB under /History/Tags.
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18 Jan 2024, Stefan Ritt, Forum, History tags
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This part of the system has been designed by KO, so he should reply here.
Stefan |
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28 Jan 2024, Konstantin Olchanski, Forum, History tags
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> This part of the system has been designed by KO, so he should reply here.
That's right. Some of this stuff is historical gibberish that is no longer needed
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17 Jan 2024, Andreas Suter, Bug Report, mhttpd eqtable
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Hi,
I like the new eqtable, but stumbled over some issues.
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17 Jan 2024, Stefan Ritt, Bug Report, mhttpd eqtable
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> 1) In the attached snapshot you see that the values shown from our vacuum Pirani and Penning cells are all zero, which of course is not true.
> It would be nice to have under the equipment settings some formatting options, like the possibility to add units.
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17 Jan 2024, Andreas Suter, Bug Report, mhttpd eqtable
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Great! This is it.
Sorry that I missed it in the docu.
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18 Jan 2024, Andreas Suter, Forum, mhttpd eqtable
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I have two more questions related to Units, Format for Equipment/Settings:
1) It looks as if I can have units per channel only for the Input/Output channels but not for Demand/Measured channels.
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18 Jan 2024, Stefan Ritt, Forum, mhttpd eqtable
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I fixed both in the current version, so please give it a try.
Stefan |
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02 Jan 2024, Konstantin Olchanski, Forum, midas.triumf.ca alias moved to daq00.triumf.ca
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the DNS alias for midas.triumf.ca moved from old ladd00.triumf.ca to new
daq00.triumf.ca. same as before it redirects to the MidasWiki and to the midas
forum (elog) that moved from ladd00 to daq00 quite some time ago. if you see any
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03 Jan 2024, Stefan Ritt, Forum, midas.triumf.ca alias moved to daq00.triumf.ca
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> the DNS alias for midas.triumf.ca moved from old ladd00.triumf.ca to new
> daq00.triumf.ca. same as before it redirects to the MidasWiki and to the midas
> forum (elog) that moved from ladd00 to daq00 quite some time ago. if you see any
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03 Jan 2024, Konstantin Olchanski, Forum, midas.triumf.ca alias moved to daq00.triumf.ca
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> I found the first issue: The link to
> https://midas.triumf.ca/MidasWiki/index.php/Custom_plots_with_mplot
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12 Dec 2023, Zaher Salman, Bug Report, Compilation error on RPi
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Hello,
Since commit bc227a8a34def271a598c0200ca30d73223c3373 I've been getting the compilation error below (on a Raspberry Pi 3 Model B Plus Rev
1.3). |
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14 Dec 2023, Zaher Salman, Bug Report, Compilation error on RPi
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This issue was resolved thanks to Konstantin and Stefan. I simply had to update submodules:
git submodule update
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29 Dec 2023, Konstantin Olchanski, Bug Report, Compilation error on RPi
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> git pull
> git submodule update
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03 Jan 2024, Stefan Ritt, Bug Report, Compilation error on RPi
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> > git pull
> > git submodule update
>
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27 Dec 2023, Konstantin Olchanski, Forum, MidasWiki updated to 1.39.6
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MidasWiki was updated to current mediawiki LTS 1.39.6 supported until Nov 2025,
see https://www.mediawiki.org/wiki/Version_lifecycle
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15 Dec 2023, Stefan Ritt, Info, Implementation of custom scatter, histogram and color map plots
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Custom plots including scatter, histogram and color map plots have been
implemented. This lets you plot graphs of X/Y data or histogram data stored in the
ODB on a custom page. For some examples and documentation please go to
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07 Dec 2023, Stefan Ritt, Info, Midas Holiday Update
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Dear beloved MIDAS users,
I'm happy to announce a "holiday update" for MIDAS. In countless hours, Zaher from
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10 Dec 2023, Andreas Suter, Info, Midas Holiday Update
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Hi Stefan and Zaher,
there is a problem with the new sequencer interface for midas.
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10 Dec 2023, Stefan Ritt, Info, Midas Holiday Update
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> If I understand the msequencer code correctly:
> Under '/Sequencer/State/Path' the path can be defined from where the msequencer gets the files, generates the xml, etc.
> However, the new javascript code reads/writes the files to '<exp>/userfiles/sequencer/'
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10 Dec 2023, Andreas Suter, Info, Midas Holiday Update
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> > If I understand the msequencer code correctly:
> > Under '/Sequencer/State/Path' the path can be defined from where the msequencer gets the files, generates the xml, etc.
> > However, the new javascript code reads/writes the files to '<exp>/userfiles/sequencer/'
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12 Dec 2023, Stefan Ritt, Info, Midas Holiday Update
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> > 3) Make /Sequencer/State/Path relative to <exp>/userfiles. Like if /Sequencer/State/Path=test would then result to a final directory <exp>/userfiles/sequencer/test
> >
> > I'm kind of tempted to go with 3), since this allows the experiment to define different subdirectories under <exp>/userfiles/sequencer/... depending |
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09 Dec 2023, Pavel Murat, Forum, history plotting: where to convert the ADC readings into temps/voltages?
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to plot time dependencies of the monitored detector parameters, say, voltages or temperatures,
one needs to convert the coresponging ADC readings into floats.
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10 Dec 2023, Stefan Ritt, Forum, history plotting: where to convert the ADC readings into temps/voltages?
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> to plot time dependencies of the monitored detector parameters, say, voltages or temperatures,
> one needs to convert the coresponging ADC readings into floats.
>
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09 Dec 2023, Pavel Murat, Forum, how to fix forgotten password ?
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[Dear All, I apologize in advance for spamming.]
1) I tried to login into the forum from the lab computer and realized
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22 Nov 2023, Pavel Murat, Forum, run number from an external (*SQL) db?
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Dear MIDAQ developers,
I wonder if there is a non-intrusive way to have an external (wrt MIDAS)*SQL database
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22 Nov 2023, Ben Smith, Forum, run number from an external (*SQL) db?
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> I wonder if there is a non-intrusive way to have an external (wrt MIDAS)*SQL database
> serving as a primary source of the run number information for a MIDAS-based DAQ system?
> - like a plugin with a getNextRunNumber() function, for example, or a special client?
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22 Nov 2023, Stefan Ritt, Forum, run number from an external (*SQL) db?
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> - multiple subdetectors are taking test data during early commissioning
> - a postgres db is a single sorce of run numbers.
> - test runs taken by different subsystems are assigned different [unique] run numbers and
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01 Dec 2023, Pavel Murat, Forum, run number from an external (*SQL) db?
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> > - multiple subdetectors are taking test data during early commissioning
> > - a postgres db is a single sorce of run numbers.
> > - test runs taken by different subsystems are assigned different [unique] run numbers and
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02 Dec 2023, Stefan Ritt, Forum, run number from an external (*SQL) db?
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> Stefan, I don't think we're talking 'mis-use' - rather different subdetectors being commisisoned
> at different locations, on an uncorrelated schedule, using independent run control (RC) instances.
> At this point in time, we can't use a common RC instance.
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02 Dec 2023, Pavel Murat, Forum, run number from an external (*SQL) db?
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>
> If you go in this direction, there is an alternative to what Ben wrote: Use the sequencer to start a run.
> The sequencer script can obtain a new run number from a central instance (e.g. by calling a shell script
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03 Dec 2023, Pavel Murat, Forum, run number from an external (*SQL) db?
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> - how does one communicate with an external shell script from MSL ?
trying to answer my own question, as I didn't find a clear answer in the forum archive :
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04 Dec 2023, Stefan Ritt, Forum, run number from an external (*SQL) db?
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> [that was not obvious from the documentation on MIDAS wiki, and adding a couple of clarifying
> sentences there would go long ways]
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04 Dec 2023, Stefan Ritt, Forum, run number from an external (*SQL) db?
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> - how does one communicate with an external shell script from MSL ? I looked at the MIDAS Sequencer page
>
> https://daq00.triumf.ca/MidasWiki/index.php/Sequencer
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01 Dec 2023, Pavel Murat, Forum, MIDAS state machine : how to get around w/o 'configured' state?
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I have one more question, though I understand that it could be somewhat border-line.
The MIDAS state machine doesn't seem to have a state in between 'initialized' and
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02 Dec 2023, Stefan Ritt, Forum, MIDAS state machine : how to get around w/o 'configured' state?
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> The MIDAS state machine doesn't seem to have a state in between 'initialized' and
> 'running'.
> In a larger detectors with multiple subsystems, the DAQ systems often have one more state:
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02 Dec 2023, Pavel Murat, Forum, MIDAS state machine : how to get around w/o 'configured' state?
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> - To start a run, we start a special sequencer script. We have different scripts for
> calibration runs, data runs, special runs.
>
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21 Nov 2023, Ivo Schulthess, Forum, Polled frontend writes data to ODB without RO_ODB
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Good morning,
In our setup, we have a neutron detector that creates up to 16 MB of polled (EQ_POLLED) data in one event (event limit = 1) that we do not want to have |
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22 Nov 2023, Stefan Ritt, Forum, Polled frontend writes data to ODB without RO_ODB
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I cannot confirm that. I just tried myself with examples/experiment/frontend.cxx, removed the RO_ODB, and the trigger events did NOT get copied to the ODB.
Actually you can debug the code yourself. The relevant line is in mfe.cxx:2075:
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13 Nov 2023, Ivo Schulthess, Forum, mlogger does not HAVE_ROOT
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Good evening,
I am setting up Midas (v2.1) for a new experiment. We want to save the data in the ROOT format. We installed ROOT from source (v6.28/06), and ROOTSYS is |
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13 Nov 2023, Konstantin Olchanski, Forum, mlogger does not HAVE_ROOT
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> I am setting up Midas (v2.1) for a new experiment. We want to save the data in the ROOT format. We installed ROOT from source (v6.28/06), and ROOTSYS
is set. When we compile Midas, it says that it found ROOT. We set up a second logger channel where we set the filename to run%05d.root, the format to ROOT,
and the output to ROOT. Nevertheless, when starting a run, the logger writes the error that "channel '1' requested ROOT output, but mlogger is built without |
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13 Nov 2023, Stefan Ritt, Forum, mlogger does not HAVE_ROOT
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When you do "cmake .." in the build directory, you will see
-- MIDAS: Found ROOT version xxx in yyy
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14 Nov 2023, Konstantin Olchanski, Forum, mlogger does not HAVE_ROOT
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> Finally, make sure you start "rmlogger" and not "mlogger". Only "rmlogger" contains the ROOT binding.
Stefan is right. I forgot this. As solution to our troubles, mlogger is built without root support. use rmlogger instead.
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14 Nov 2023, Ivo Schulthess, Forum, mlogger does not HAVE_ROOT
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> Stefan is right. I forgot this. As solution to our troubles, mlogger is built without root support. use rmlogger instead.
>
> K.O.
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14 Nov 2023, Stefan Ritt, Forum, mlogger does not HAVE_ROOT
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No, I'm not aware of this problem, but I suspect that your events somehow got corrupted. You can try the mdump utility
or the "Event Dump" web page to peek into your events, maybe you see an issue there. To give you more detailed information,
I would have to reproduce your problem, which is probably hard without your hardware.
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15 Nov 2023, Ivo Schulthess, Forum, mlogger does not HAVE_ROOT
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> No, I'm not aware of this problem, but I suspect that your events somehow got corrupted. You can try the mdump utility
> or the "Event Dump" web page to peek into your events, maybe you see an issue there. To give you more detailed information,
> I would have to reproduce your problem, which is probably hard without your hardware.
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23 Oct 2023, Francesco Renga, Forum, Device with inputs and outputs
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Dear all,
I'm writing a very simple device driver starting from the nulldev.cxx
example.
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24 Oct 2023, Stefan Ritt, Forum, Device with inputs and outputs
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The "multi" class driver takes care of that. It properly calls the SET and GET functions
with the correct index. The code for that is in multi.cxx:105:
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03 Oct 2023, Gennaro Tortone, Bug Report, Python midas.file_reader get_eor_odb_dump()
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Hi,
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16 Oct 2023, Ben Smith, Bug Report, Python midas.file_reader get_eor_odb_dump()
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Thanks for the bug report Gennaro!
I've fixed the code so that we'll now find the end-of-run ODB dump even if the user is already at the end of the file when they call get_eor_odb_dump().
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06 Oct 2023, Stefan Ritt, Info, New equipment display
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Since a long time we tried to convert all "static" mhttpd-generated pages to
dynamic JavaScript. With the new history panel editor we were almost there. Now I
committed the last missing piece - the equipment display. This is shown when you
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09 Oct 2023, Stefan Ritt, Info, New equipment display
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An additional functionality has been implemented on the equipment table:
You can now select several elements by Ctrl/Shift-Click on their names, then change the
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