 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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20 Jan 2026, Stefan Ritt, Info, New tabbed custom pages
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Tabbed custom pages have been implemented in MIDAS. Below you see and example. The documentation
is here:
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23 Jan 2026, Stefan Ritt, Info, Homebrew support for midas
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Hi Mathieu,
thanks for your contribution. Have you looked at the install.sh script I developed last week:
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26 Jan 2026, Stefan Ritt, Info, Homebrew support for midas
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> Actually, these two approaches are slightly different I guess:
> - the installation script you are linking manages the
> installation and the subsequent steps, but doesn't manage the dependencies: for instance on my machine, it didn't find root and so manalyzer
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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Thanks for the detailed report. Let me reply one-by-one.
> 1) history plots on 12 hrs, 24 hrs tend to hang with "page not responsive". most plots have 16-20 variables,
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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> 3) ODB editor clicking on hex number versus decimal number no longer allows editing in hex, Stefan implemented
> this useful feature and it worked for a while, but now seems broken.
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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> 4) ODB editor "right click" to "delete" or "rename" key does not work, the right-click menu disappears
> immediately before I can use it (dl-server-2), click on item (it is now blue), right-click menu disappears
> before I can use it (daq17). it looks like a timing or race condition.
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06 Feb 2026, Stefan Ritt, Bug Report, omnibus bugs from running DarkLight
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> 5) ODB editor "create link" link target name is limited to 32 bytes, links cannot be created (dl-server-2), ok
> on daq17 with current MIDAS.
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