 11 Nov 2022, Frederik Wauters, Bug Fix, O_CREAT in open in split.cxx
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midas currently does not compile on linux
/usr/include/x86_64-linux-gnu/bits/fcntl2.h:50:24: error: call to ‘__open_missing_mode’ declared with attribute error: open with O_CREAT or O_TMPFILE in |
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19 Sep 2023, Frederik Wauters, Bug Report, epics fe "Start Command"
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The epics frontend overwrites the "start command" odb after each start:
// set start command in ODB
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24 Sep 2023, Frederik Wauters, Suggestion, scroll when browsing for a link
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Another small user experience request:
When making a link in the odb (web interface) a nice browser window pop's up. There is however not scrolling possible in the window. As a result, you can |
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15 Jan 2024, Frederik Wauters, Forum, dump history FILE files
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We switched from the history files from MIDAS to FILE, so we have *.dat files now (per variable), instead of the old *.hst.
How shoul
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 18 Feb 2024, Frederik Wauters, Forum, dump history FILE files
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> $ cat mhf_1697445335_20231016_run_transitions.dat
> event name: [Run transitions], time [1697445335]
> tag: tag: /DWORD 1 4 /timestamp
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19 Jun 2025, Frederik Wauters, Bug Report, add history variables
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I have encounter this a few times
* Make a new history panel
* Use the web GUI to add history variables
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01 Oct 2025, Frederik Wauters, Forum, struct size mismatch of alarms
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So I started our DAQ with an updated midas, after ca. 6 months+.
No issues except all FEs complaining about the Alarm ODB structure.
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02 Oct 2025, Frederik Wauters, Forum, struct size mismatch of alarms
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> Sorry to intervene there, but the FEs are usually compiled against libmidas.a . Therefore you have to compile midas, usually do a "make install" to update
the libmidas.a/so, then recompile the FEs. You probably forgot the "make install".
>
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26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
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Dear experts,
we have a problem when trying to run a MIDAS DAQ which worked in the past on the same PC (but on a different
network). We get the following error messages when starting a new run:
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26 Apr 2017, Francesco Renga, Forum, Problem with logger at run start
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Dear Stefan,
thank you very much for your reply. We could finally fix the problem by replacing "scarlett" with "scarlett.localdomain" in our
hostname configuration file /etc/hostname (under debian).
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04 May 2018, Francesco Renga, Forum, ODB full
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Dear expert,
I'm developing a frontend and I'm getting this kind of error at each event:
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11 Sep 2018, Francesco Renga, Forum, Launching an executable script from the sequencer
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Dear experts,
is there any way to launch an executable script on the host computer from the MIDAS
sequencer? If not, is there any interest to develop such a feature?
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11 Mar 2019, Francesco Renga, Forum, Run length
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Dear all,
I need to implement a DAQ sequence where a short run (100 events, which takes a couple of
minutes) is taken every hour, with a long run in between two short runs. In the sequencer, I can do:
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12 Mar 2019, Francesco Renga, Forum, Problem stopping every second run
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Dear all,
I'm running a DAQ frontend and it works well if one single run is
taken. If I try to take a second run right after, the run is performed but, when
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03 Apr 2020, Francesco Renga, Info, CLOCK_REALTIME on MacOS
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Dear all,
I'm trying to compile MIDAS on MacOS 10.10 and I get this error:
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19 May 2021, Francesco Renga, Suggestion, MYSQL logger
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Dear all,
I'm trying to use the logging on a mysql DB. Following the instructions on
the Wiki, I recompiled MIDAS after installing mysql, and cmake with NEED_MYSQL=1
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21 May 2021, Francesco Renga, Suggestion, MYSQL logger
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I solved this, it was a failed "make clean" before recompiling. Now it works.
Sorry for the noise.
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08 Jul 2021, Francesco Renga, Forum, Problem with python file reader
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Dear experts,
while trying to readout a MIDAS file from a python script. I get the error below at the very first event. Any hint?
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30 Sep 2021, Francesco Renga, Forum, OPC client within MIDAS
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Dear all,
I need to integrate in my MIDAS project the communication with an OPC UA
server. My plan is to develop an OPC UA client as a "device" in
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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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