 24 Jul 2025, Konstantin Olchanski, Bug Fix, support for large history files
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FILE history code (mhf_*.dat files) did not support reading history files bigger than about 2GB, this is now
fixed on branch "feature/history_off64_t" (in final testing, to be merged ASAP).
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 14 Aug 2025, Konstantin Olchanski, Forum, How can I retrieve online data
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> I would like to know how to retrieve the online data during the experiment so
> that I can create my own custom plot. I execute my own frontend.exe to start the
> experiment. I can get a midas file after the experiment, but I am not sure about
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14 Feb 2020, Konrad Briggl, Forum, Writting Midas Events via FPGAs
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Hello Stefan,
is there a difference for the later data processing (after writing the ring buffer blocks)
if we write single events or multiple in one rb_get_wp - memcopy - rb_increment_wp cycle?
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02 Mar 2007, Kevin Lynch, Forum, event builder scalability
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> Hi there:
> I have a question if there's anybody out there running MIDAS with event builder
> that assembles events from more that just a few front ends (say on the order of
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15 Dec 2016, Kevin Giovanetti, Bug Report, midas.h error
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creating a frontend on MAC Sierra OSX 10
include the midas.h file and when compiling with XCode I get an error based on
this entry in the midas.h include
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30 Oct 2018, Joseph McKenna, Bug Report, Side panel auto-expands when history page updates
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One can collapse the side panel when looking at history pages with the button in
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31 Oct 2018, Joseph McKenna, Bug Report, Side panel auto-expands when history page updates
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> >
> >
> > One can collapse the side panel when looking at history pages with the button in
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14 Oct 2019, Joseph McKenna, Forum, tmfe.cxx - Future frontend design
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Hi,
I have been looking at the 2019 workshop slides, I am interested in the C++ future of MIDAS.
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18 Oct 2019, Joseph McKenna, Info, sysmon: New system monitor and performance logging frontend added to MIDAS 
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I have written a system monitor tool for MIDAS, that has been merged in the develop branch today: sysmon
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03 Dec 2019, Joseph McKenna, Info, mfe.c: MIDAS frontend's 'Equipment name' can embed hostname, determined at run-time
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A little advertised feature of the modifications needed support the msysmon program is
that MIDAS equipment names can support the injecting of the hostname of the system
running the frontend at runtime (register_equipment(void)).
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01 May 2020, Joseph McKenna, Forum, Taking MIDAS beyond 64 clients
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Hi all,
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02 May 2020, Joseph McKenna, Forum, Taking MIDAS beyond 64 clients
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Thank you very much for feedback.
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19 Nov 2020, Joseph McKenna, Forum, History plot consuming too much memory
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A user reported an issue that if they were to plot some history data from
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20 Nov 2020, Joseph McKenna, Forum, History plot consuming too much memory
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Poking at the behavior of this, its fairly clear the slow response is from the data
being loaded off an HDD, when we upgrade this system we will allocate enough SSD
storage for the histories.
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27 May 2021, Joseph McKenna, Info, MIDAS Messenger - A program to send MIDAS messages to Discord, Slack and or Mattermost
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I have created a simple program that parses the message buffer in MIDAS and
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28 May 2021, Joseph McKenna, Info, MIDAS Messenger - A program to forward MIDAS messages to Discord, Slack and or Mattermost merged
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A simple program to forward MIDAS messages to Discord, Slack and or Mattermost
(Python 3 required)
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28 May 2021, Joseph McKenna, Suggestion, Have a list of 'users responsible' in Alarms and Programs odb entries
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There have been times in ALPHA that an alarm is triggered and the shift crew
are unclear who to contact if they aren't trained to fix the specific
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28 May 2021, Joseph McKenna, Bug Report, History plots deceiving users into thinking data is still logging
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I have been trying to fix this myself but my javascript isn't strong... The
'new' history plot render fills in missing data with the last ODB value
(even
when this value is very old...
elog:2180/1 shows this... The data logging stopped, but the history plot can
fool
users
into thinking data is logging (The export button generates CSVs with
entires every 10 seconds also). Grepping through the history files behind the
scenes, |
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28 May 2021, Joseph McKenna, Suggestion, Have a list of 'users responsible' in Alarms and Programs odb entries
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> I think this is a good idea and I support it. We have a similar problem in MEG and
> we solved that with external (bash) scripts called in case of alarms. One feature
> there we have is that for some alarms, several people want to get notified. So
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28 May 2021, Joseph McKenna, Suggestion, Have a list of 'users responsible' in Alarms and Programs odb entries
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> > I can still make this an array and pass a std::vector<std::string> into
> > al_trigger_class function?
>
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