 01 Apr 2025, Konstantin Olchanski, Suggestion, Sequencer ODBSET feature requests
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> ODBSET "/Path/value[1,3,5]"
> ODBSET "/Path/value[1-5,7-9]"
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01 Apr 2025, Konstantin Olchanski, Bug Report, MIDAS history system not using the event timestamps ?
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> I confirm that when writing out history files corresponding to the slow control event data,
> MIDAS history system timestamps the data not with the event time coming from the event data,
> but with the current time determined by [mlogger].
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02 Apr 2025, Konstantin Olchanski, Bug Report, MIDAS history system not using the event timestamps ?
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> > You can always include your "true" data timestamp as the first value in your data.
>
> Are you saying that if the first data word of a history event were a timestamp,
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02 Apr 2025, Konstantin Olchanski, Suggestion, Sequencer ODBSET feature requests
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> I once looked at using LUA for this
>
> > but I think basing off an full featured programming language like python
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 05 May 2025, Konstantin Olchanski, Bug Fix, Bug fix in SQL history
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A bug was introduced to the SQL history in 2022 that made renaming of variable names not work. This is now fixed.
break commit:
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05 May 2025, Konstantin Olchanski, Info, db_delete_key(TRUE)
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I was working on an odb corruption crash inside db_delete_key() and I noticed
that I did not test db_delete_key() with follow_links set to TRUE. Then I noticed
that nobody nowhere seems to use db_delete_key() with follow_links set to TRUE.
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05 May 2025, Konstantin Olchanski, Bug Report, abort and core dump in cm_disconnect_experiment()
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I noticed that some programs like mhist, if they take too long, there is an abort and core dump at the very end. This is because they forgot to
set/disable the watchdog timeout, and they got remove from odb and from the SYSMSG event buffer.
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16 May 2025, Konstantin Olchanski, Bug Report, history_schema.cxx fails to build
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> we have a CI setup which fails since 06.05.2025 to build the history_schema.cxx.
> There was a major change in this code in the commits fe7f6a6 and 159d8d3.
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16 May 2025, Konstantin Olchanski, Bug Report, history_schema.cxx fails to build
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> > we have a CI setup which fails since 06.05.2025 to build the history_schema.cxx.
> > There was a major change in this code in the commits fe7f6a6 and 159d8d3.
>
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04 Jun 2025, Konstantin Olchanski, Bug Report, Memory leak in mhttpd binary RPC code
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Noted. I will look at this asap. K.O.
[quote="Mark Grimes"]Hi,
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10 Jun 2025, Konstantin Olchanski, Bug Report, Memory leak in mhttpd binary RPC code
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I confirm that MJSON_ARRAYBUFFER does not work correctly for zero-size buffers,
buffer is leaked in the destructor and copied as NULL in MJsonNode::Copy().
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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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