 27 Nov 2025, Stefan Ritt, Suggestion, Improve process for adding new variables that can be shown in history plots
|
> 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),
|
|
27 Nov 2025, Stefan Ritt, Suggestion, mvodb WS and family type matching
|
> 2) "advanced" c++ code:
>
> void foo(const std::string& xxx) { ... };
|
|
28 Nov 2025, Konstantin Olchanski, Suggestion, mvodb WS and family type matching
|
> > 2) "advanced" c++ code:
> >
> > void foo(const std::string& xxx) { ... };
|
|
28 Nov 2025, Konstantin Olchanski, Suggestion, mvodb WS and family type matching
|
Just in time, enter std::string_view.
https://stackoverflow.com/questions/40127965/how-exactly-is-stdstring-view-faster-than-const-stdstring
|
|
03 Dec 2025, Konstantin Olchanski, Suggestion, Improve process for adding new variables that can be shown in history plots
|
> 3b) mlogger used to rescan ODB each time a new run is started, this code was removed
One more kink turned out.
|
|
04 Dec 2025, Stefan Ritt, Suggestion, Improve process for adding new variables that can be shown in history plots
|
> 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.
|
|
07 Dec 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
|
> #include "manalyzer.h"
> #include "midasio.h"
> +#include "odbxx.h"
|
|
08 Dec 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
|
> > #include "manalyzer.h"
> > #include "midasio.h"
> > +#include "odbxx.h"
|
|
08 Dec 2025, Konstantin Olchanski, Suggestion, manalyzer root output file with custom filename including run number
|
I updated the root helper constructor to give the user more control over ROOT output file names.
You can now change it to anything you want in the module run constructor, see manalyzer_example_esoteric.cxx
|
 16 Apr 2026, Konstantin Olchanski, Suggestion, mhttpd user permissions
|
We had our periodic discussion on MIDAS web page user permissions. (I cannot
find the link to the previous discussions, ouch!)
|
|
06 May 2026, Jonas A. Krieger, Suggestion, numpy version compatibility
|
There seems to be a version dependency with the numpy.bool , e.g. used here
https://bitbucket.org/tmidas/midas/src/c6ef4aff5e7e652df79160141e570bed5f4d6a3b/python/midas/sequencer.py?at=develop#sequencer.py-1714 .
|
|
01 Jun 2026, Yiwen Yang, Suggestion, Multithreaded deferred transitions
|
Hi,
On the DAQ system for T2K's ND280 near detector, we use deferred
|
|
11 Jun 2026, Stefan Ritt, Suggestion, Multithreaded deferred transitions
|
Multithreaded transitions were introduced by KO in 2019. Please ask him to make deferred transitions work
again or simply use non-multithreaded transitions.
|
|
25 Jun 2026, Konstantin Olchanski, Suggestion, Multithreaded deferred transitions
|
> Multithreaded transitions were introduced by KO in 2019. Please ask him to make deferred transitions work
> again or simply use non-multithreaded transitions.
|
|
25 Jun 2026, Yiwen Yang, Suggestion, Multithreaded deferred transitions
|
> I recommend against using them. Maybe you can explain what you do and I can suggest a way
> to avoid using the
deferred transition.
|
|
06 Jul 2026, Joel Sander, Suggestion, mlogger MySQL improved connection
|
We recently had an instance where mlogger lost its connection to the database resulting in 317 write errors on mysql_insert and (Good) did report connection
errors to the Midas log but (Bad) didn't attempt to restore the connection. With some help from Gemini, I've drafted a potential solution to reheal.
Our copy uses mysql_query_debug line 1903 in our copy that inserts rows, creates tables, etc: |
|
07 Jul 2026, Marius Koeppel, Suggestion, Multithreaded PySequencer
|
Dear all,
I was wondering if one can use multiple pysequencers at the same time and if not
|
|
08 Jul 2026, Konstantin Olchanski, Suggestion, mlogger MySQL improved connection
|
you can also copy the reconnect code from history_schema.cxx.
if I remember right, the test case for correct reconnect is to start the mlogger,
|
|
08 Jul 2026, Konstantin Olchanski, Suggestion, Multithreaded PySequencer
|
> I was wondering if one can use multiple pysequencers at the same time and if not
> if this feature is planned in the future? Our experiment (mu3e) has one frontend
> per detector and each sequencer would only access a subset of ODB entries.
|
|
08 Jul 2026, Konstantin Olchanski, Suggestion, Multithreaded deferred transitions
|
> Deferred transition is registered by the FPN00
FPN00, yes, this rings a bell.
|