 27 Nov 2025, Stefan Ritt, Bug Report, Error(?) in custom page documentation
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Indeed a bug. Fixed in commit
https://bitbucket.org/tmidas/midas/commits/5c1133df073f493d74d1fc4c03fbcfe80a3edae4
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27 Nov 2025, Stefan Ritt, Suggestion, Improve process for adding new variables that can be shown in history plots
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> I assume that mlogger rescanning ODB is somewhat intensive process; and that's why we don't want rescanning to
> happen every time the ODB is changed?
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27 Nov 2025, Stefan Ritt, Suggestion, Improve process for adding new variables that can be shown in history plots
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> 1) history is independent from "runs", we see a change, we apply it (even if it takes 10 sec or 2 minutes).
>
> 2) "nothing should change during a run", we must process all changes before we start a run (starting a run takes forever),
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27 Nov 2025, Stefan Ritt, Suggestion, mvodb WS and family type matching
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> 2) "advanced" c++ code:
>
> void foo(const std::string& xxx) { ... };
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03 Dec 2025, Stefan Ritt, Suggestion, Improve process for adding new variables that can be shown in history plots
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> Now, mlogger just silently continues not writing to history. There is no ongoing error message, there is no
> ongoing alarm, only sign of trouble is empty history plots and history files not growing.
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09 Dec 2025, Stefan Ritt, Bug Report, odbxx memory leak with JSON ODB dump
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Thanks for reporting this. It was caused by a
MJsonNode* node = MJsonNode::Parse(str.c_str());
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10 Dec 2025, Stefan Ritt, Bug Report, odbxx memory leak with JSON ODB dump
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> BTW, it looks like we are parsing the whole JSON ODB dump (200k+) on every odbxx access. Can you parse it just once?
You are right. I changed the code so that the dump is only parsed once. Please give it a try.
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11 Dec 2025, Stefan Ritt, Bug Report, odbxx memory leak with JSON ODB dump
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> Confirmed fixed, thanks! There are 2 small changes I made in odbxx.h, please pull.
There was one missing enable_jsroot in manalyzer, please pull yourself.
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 04 Jan 2026, Stefan Ritt, Info, Ad-hoc history plots of slow control equipment 
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After popular demand and during some quite holidays I implemented ad-hoc history plots. To enable this
for a certain equipment, put
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09 Jan 2026, Stefan Ritt, Forum, MIDAS installation
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Since we have no many RaspberryPi based control systems running at our lab with midas, I want to
streamline the midas installation, such that a non-expert can install it on these devices.
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13 Jan 2026, Stefan Ritt, Forum, MIDAS installation
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Thanks for your feedback. I reworked the installation script, and now also called it "install.sh" since it includes also the git clone. I modeled it after
homebrew a mit (https://brew.sh). This means you can now run the script on a prison linux system with:
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13 Jan 2026, Stefan Ritt, Forum, MIDAS installation
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I put the documentation under
https://daq00.triumf.ca/MidasWiki/index.php/Install_Script
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14 Jan 2026, Stefan Ritt, Bug Report, DEBUG messages not showing and related
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MT_DEBUG messages are there for debugging, not logging. They only go into the SYSMSG buffer and NOT to the log file. If you want anything logged, just use
MT_INFO.
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19 Nov 2025, Stefan Mathis, Forum, Control external process from inside MIDAS
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Dear all,
I want to control (start / stop / monitor its stdout and stderr) an external process (systemd / EPICS IOC shell script) from within MIDAS.
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20 Nov 2025, Stefan Mathis, Forum, Control external process from inside MIDAS
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Thanks a lot,
Nick. Regarding the messages: Zaher showed me that it is possible to simply place a custom log file generated by the systemd next to midas.log - then it |
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20 Nov 2025, Stefan Mathis, Forum, Control external process from inside MIDAS
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Hi,
unfortunately I don't have a documentation link to the feature, I just know that it works on my machine ;-) The general idea is that you place a custom |
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13 Oct 2020, Soichiro Kuribayashi, Info, About remote control of front end part of MIDAS on chip
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Hello!
My name is Soichiro Kuribayashi and I am a Ph.D. student at Kyoto University.
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13 Oct 2020, Soichiro Kuribayashi, Info, About remote control of front end part of MIDAS on chip
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Dear Konstantin,
Thank you very much for your reply and detailed information.
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21 Oct 2020, Soichiro Kuribayashi, Info, About remote control of front end part of MIDAS on chip
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Dear Stefan,
Thank you very much for your help.
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27 Jul 2006, Shawn Bishop, Bug Report, MIDAS revision 3184 bombs on FC5
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Hi All,
I just did a fresh download of midas (revision 3184) onto a newly setup FC5 box. Compilation bombs. Printout of compiler output as follows:
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