 11 Oct 2021, Stefan Ritt, Info, Modification in the history logging system
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A requested change in the history logging system has been made today. Previously, history values were
logged with a maximum frequency (usually once per second) but also with a minimum frequency, meaning
that values were logged for example every 60 seconds, even if they did not change. This causes a problem.
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29 Sep 2021, Richard Longland, Bug Report, nstall clash between MIDAS 2020-08 and mscb
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Thank you, Stefan.
I found these instructions under
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 29 Sep 2021, Stefan Ritt, Bug Report, nstall clash between MIDAS 2020-08 and mscb
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> Thank you, Stefan.
>
> I found these instructions under
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28 Sep 2021, Richard Longland, Bug Report, Install clash between MIDAS 2020-08 and mscb
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All,
I am performing a fresh install of MIDAS on an Ubuntu linux box. I follow the
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28 Sep 2021, Stefan Ritt, Bug Report, Install clash between MIDAS 2020-08 and mscb
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> 1) git clone https://bitbucket.org/tmidas/midas --recursive
> 2) cd midas
> 3) git checkout release/midas-2020-08
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19 Sep 2021, Stefan Ritt, Bug Fix, Chat working again 
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Not sure how many people are using it, but the Chat facility in midas was broken
for some time now and got fixed today again.
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06 Sep 2021, Andreas Suter, Forum, mhttpd crash
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midas version used: midas-2019-05-cxx-1461-g906be8b
I find in the systemd log every couple of days/weeks the following error message related to the mhttpd:
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06 Sep 2021, Konstantin Olchanski, Forum, mhttpd crash
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> [mhttpd,ERROR] [mhttpd.cxx:18886:on_work_complete,ERROR] Should not send response to request from socket 28 to socket 26, abort!
> Can anybody hint me what is going wrong here?
> The bad thing on the crash is, that sometimes it is leading to a "chain-reaction" killing multiple midas frontends, which essentially stop the experiment.
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07 Sep 2021, Andreas Suter, Forum, mhttpd crash
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Dear Konstantin,
thanks for the prompt response, this helps a lot!
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17 Sep 2021, Stefan Ritt, Forum, mhttpd crash
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To limit the impact of the numerous crashes of mhttpd, I installed the monit tool at MEG at PSI
(https://en.wikipedia.org/wiki/Monit). It monitors mhttpd, and if it cannot connect to it for a certain
time, it kills the process and restarts it. This covers endless loops, simple crashes (caused by the
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24 Jun 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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I am updating the history plots. Main changes:
- the old history display code should again be easily usable (use the "open in old history display" checkbox)
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24 Jun 2021, Stefan Ritt, Bug Fix, changes in history plots
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I disagree with the proposed change to scale the HV current for a "nice" display. If values are scaled, the axis should be
scaled in the same way. Otherwise people might read the current from the plot, look at the axis, and again get the wrong
value (the factor of 25x you mention). Sure you can hover with the cursor over the graph, and see the right value, but think
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25 Jun 2021, Marco Francesconi, Bug Fix, changes in history plots
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We are using the new history formula as a quick way to convert signals from sensors to actual physical values (for example Voltage->Temperature, Voltage->relative
humidity
...), so it is great that the shown voltage is the calculated one.
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25 Jun 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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I will have to post an example of a scaled plot. I figure everybody forgot how they look like.
K.O.
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25 Jun 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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> I disagree ...
I am happy with disagreement and differences of opinions. Zest of life, driver of progress and improvements, etc.
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25 Jun 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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> > The only "correct" way in my opinion is to implement two vertical axis, as can be seen in some papers. One for the HV, and a
> > new TBD right axis for the current values, then indicating for each graph if the left or right vertical axis applies. For
> > the secondary axis we can have autoscaling or fixed scaling, as we have for the primary axis.
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25 Jun 2021, Stefan Ritt, Bug Fix, changes in history plots
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A general warning: With the recent history changes implemented in the develop branch, starting from a fresh ODB and editing
any history panel, on gets tons of errors and debug output from mhttpd:
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25 Jun 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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> A general warning: With the recent history changes implemented in the develop branch, starting from a fresh ODB and editing
> any history panel, on gets tons of errors and debug output from mhttpd: ...
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30 Jun 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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> I am updating the history plots.
> So the idea is to use this computation:
> y_position_on_plot = offset + factor*(formula(history_value) - voffset)
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14 Jul 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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Moving in the direction of this proposal. History plot editor is updated according to it. Remaining missing piece is the "show
raw value" buttons and code behind them.
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14 Jul 2021, Konstantin Olchanski, Bug Fix, changes in history plots
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> Moving in the direction of this proposal. Remaining missing piece is the "show
> raw value" buttons and code behind them.
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24 Aug 2021, Stefan Ritt, Bug Fix, changes in history plots
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One addition I would be in favour of is to remove the "Order" and replace it with drag&drop handles, because this is what people are more
used to today. Only the old guys like us remember the /etc/init.d/xx_yy scheme where one uses an integer number in the file name to
determine an order.
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19 Aug 2021, Konstantin Olchanski, Bug Report, select() FD_SETSIZE overrun
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I am looking at the mlogger in the ALPHA anti-hydrogen experiment at CERN. It is
mysteriously misbehaving during run start and stop.
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20 Aug 2021, Stefan Ritt, Bug Report, select() FD_SETSIZE overrun
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> I am looking at the mlogger in the ALPHA anti-hydrogen experiment at CERN. It is
> mysteriously misbehaving during run start and stop.
>
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12 May 2021, Mathieu Guigue, Bug Report, mhttpd WebServer ODBTree initialization
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Hi,
Using midas version 12-2020, I am trying to run mhttpd from within a docker container using docker-compose.
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12 May 2021, Ben Smith, Bug Report, mhttpd WebServer ODBTree initialization
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> midas_hatfe_1 | Mongoose web server listening on http address "localhost:8080", passwords OFF, hostlist OFF
> midas_hatfe_1 | [mhttpd,ERROR] [mhttpd.cxx:19160:mongoose_listen,ERROR] Cannot mg_bind address "[::1]:8080"
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12 May 2021, Stefan Ritt, Bug Report, mhttpd WebServer ODBTree initialization
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> It looks like mhttpd managed to bind to the IPv4 address (localhost), but not the IPv6 address (::1). If you don't need it, try setting "/Webserver/Enable
IPv6" to false.
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13 May 2021, Mathieu Guigue, Bug Report, mhttpd WebServer ODBTree initialization
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> > It looks like mhttpd managed to bind to the IPv4 address (localhost), but not the IPv6 address (::1). If you don't need it, try setting "/Webserver/Enable
IPv6" to false.
>
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14 May 2021, Stefan Ritt, Bug Report, mhttpd WebServer ODBTree initialization
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> Thanks a lot, this solved my issue!
... or we should turn IPv6 off by default, since not many people use this right now. |
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02 Jun 2021, Konstantin Olchanski, Bug Report, mhttpd WebServer ODBTree initialization
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> > Thanks a lot, this solved my issue!
>
> ... or we should turn IPv6 off by default, since not many people use this right now.
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05 Aug 2021, Stefan Ritt, Bug Report, mhttpd WebServer ODBTree initialization
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Well, we all see it here at PSI, so this is enough reason to turn this off by default. Shall
I do it? |
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04 Jun 2021, Andreas Suter, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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Hi,
if I check out midas and try to configure it with
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04 Jun 2021, Konstantin Olchanski, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
good timing, I am working on cmake for manalyzer and rootana and I have not tested
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04 Jun 2021, Konstantin Olchanski, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
> Is the cmake setup not relocatable? This is new and was working until recently:
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04 Jun 2021, Andreas Suter, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> > cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
> > Is the cmake setup not relocatable? This is new and was working until recently:
>
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08 Jun 2021, Konstantin Olchanski, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> > > cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
> > > Is the cmake setup not relocatable? This is new and was working until recently:
> > Not relocatable. This is because we do not install the header files.
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09 Jun 2021, Andreas Suter, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> > > > cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
> > > > Is the cmake setup not relocatable? This is new and was working until recently:
> > > Not relocatable. This is because we do not install the header files.
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10 Jun 2021, Konstantin Olchanski, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> > > > > cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
> > > > > Is the cmake setup not relocatable? This is new and was working until recently:
> > > > Not relocatable. This is because we do not install the header files.
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10 Jun 2021, Andreas Suter, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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> > > > > > cmake ../ -DCMAKE_INSTALL_PREFIX=/usr/local/midas
> > > > > > Is the cmake setup not relocatable? This is new and was working until recently:
> > > > > Not relocatable. This is because we do not install the header files.
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11 Jul 2021, Konstantin Olchanski, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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big thanks to Andreas S. for getting most of this figured out. I now understand
much better how cmake installs things and how it generates config files, both
find_package(midas) style and install(export) style.
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02 Aug 2021, Andreas Suter, Bug Report, cmake with CMAKE_INSTALL_PREFIX fails
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Dear Konstantin,
I have tried your adopted version. You did already quite a job which is more consistent than what I was suggesting.
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31 Jul 2021, Peter Kunz, Bug Report, ss_shm_name: unsupported shared memory type, bye!
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I ran into a problem trying to compile the latest MIDAS version on a Fedora
system.
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09 Jul 2021, Konstantin Olchanski, Bug Report, cmake question
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cmake check and mate in 1 move. please help.
the midas cmake file has a typo in the ROOT_CXX_FLAGS, I fixed it and now I am dead in the
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13 Jul 2021, Konstantin Olchanski, Bug Report, cmake question
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> cmake check and mate in 1 move. please help.
> -std=c++11 and -std=c++14 collision...
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14 Jul 2021, Konstantin Olchanski, Bug Report, cmake question
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> > cmake check and mate in 1 move. please help.
> > -std=c++11 and -std=c++14 collision...
>
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10 Aug 2020, Mathieu Guigue, Info, MidasConfig.cmake usage
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As the Midas software is installed using CMake, it can be easily integrated into
other CMake projects using the MidasConfig.cmake file produced during the Midas
installation.
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28 May 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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How does "find_package (Midas REQUIRED)" find the location of MIDAS?
The best I can tell from the current code, the package config files are installed
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28 May 2021, Marius Koeppel, Info, MidasConfig.cmake usage
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> Does anybody actually use "find_package(midas)", does it actually work for anybody?
What we do is to include midas as a submodule and than we call find_package:
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28 May 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> > Does anybody actually use "find_package(midas)", does it actually work for anybody?
>
> What we do is to include midas as a submodule and than we call find_package:
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31 May 2021, Stefan Ritt, Info, MidasConfig.cmake usage
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MidasConfig.cmake might at some point get included in the standard Cmake installation (or some add-on). It will then reside in the Cmake system path
and you don't have to explicitly know where this is. Just the find_package(Midas) will then be enough.
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02 Jun 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> MidasConfig.cmake might at some point get included in the standard Cmake installation (or some add-on). It will then reside in the Cmake system path
> and you don't have to explicitly know where this is. Just the find_package(Midas) will then be enough.
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04 Jun 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> find_package(Midas)
I am testing find_package(Midas). There is a number of problems:
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04 Jun 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> > find_package(Midas)
>
> So how much time should I spend in fixing find_package(Midas) to make it generally usable?
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20 Jun 2021, Lukas Gerritzen, Suggestion, MidasConfig.cmake usage
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I agree that those two things are problems, but I don't see why it is preferable to leave the MidasConfig.cmake in this "broken" state. For us
problem 1 is less of an issue, becaues we run "link_directories(${MIDAS_LIBRARY_DIRS})" in the top CMakeLists.txt and then just link against "midas",
not "${MIDAS_LIBRARIES}". However, number 2 would be nice, to not manually hack in target_include_directories(target ${MIDASSYS}/mscb/include),
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20 Jun 2021, Konstantin Olchanski, Suggestion, MidasConfig.cmake usage
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> I agree that those two things are problems, but I don't see why it is preferable to leave the MidasConfig.cmake in this "broken" state. For us
> problem 1 is less of an issue, becaues we run "link_directories(${MIDAS_LIBRARY_DIRS})" in the top CMakeLists.txt and then just link against "midas",
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22 Jun 2021, Lukas Gerritzen, Suggestion, MidasConfig.cmake usage
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> So you say "nuke ${MIDAS_LIBRARIES}" and "fix ${MIDAS_INCLUDE}". Ok.
A more moderate option would be to remove mfe from ${MIDAS_LIBRARIES}, but as far as I understand mfe is not the only problem, so nuking might be the
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24 Jun 2021, Konstantin Olchanski, Suggestion, MidasConfig.cmake usage
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> > So you say "nuke ${MIDAS_LIBRARIES}" and "fix ${MIDAS_INCLUDE}". Ok.
> A more moderate option ...
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11 Jul 2021, Konstantin Olchanski, Suggestion, MidasConfig.cmake usage
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> > > So you say "nuke ${MIDAS_LIBRARIES}" and "fix ${MIDAS_INCLUDE}". Ok.
> > A more moderate option ...
>
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13 Jul 2021, Stefan Ritt, Info, MidasConfig.cmake usage
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Thanks for the contribution of MidasConfig.cmake. May I kindly ask for one extension:
Many of our frontends require inclusion of some midas-supplied drivers and libraries
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13 Jul 2021, Konstantin Olchanski, Info, MidasConfig.cmake usage
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> $MIDASSYS/drivers/class/
> $MIDASSYS/drivers/device
> $MIDASSYS/mscb/src/
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11 Jul 2021, Konstantin Olchanski, Info, midas cmake update
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I reworked the midas cmake files:
- install via CMAKE_INSTALL_PREFIX should work correctly now:
- installed are bin, lib and include - everything needed to build against the midas library
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09 Jul 2021, Konstantin Olchanski, Info, cannot push to bitbucket
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the day has arrived when I cannot git push to bitbucket. cloud computing rules!
I have never seen this error before and I do not think we have any hooks installed,
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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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09 Jul 2021, Ben Smith, Forum, Problem with python file reader
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Hi Francesco,
Can you send me an example file to look at please? Either attached to the elog or sent directly to bsmith@triumf.ca
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29 Jun 2021, Lukas Gerritzen, Bug Report, modbcheckbox behaves erroneous with UINT32 variables
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For boolean and INT32 variables, modbcheckbox works as expected. You click, it
sets the variable to true or 1, the checkbox stays checked until you click again
and it's being set back to 0.
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30 Jun 2021, Stefan Ritt, Bug Report, modbcheckbox behaves erroneous with UINT32 variables
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> For boolean and INT32 variables, modbcheckbox works as expected. You click, it
> sets the variable to true or 1, the checkbox stays checked until you click again
> and it's being set back to 0.
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30 Jun 2021, Lukas Gerritzen, Bug Report, modbcheckbox behaves erroneous with UINT32 variables
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| Thanks for the quick fix. |
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28 Jun 2021, Marco Francesconi, Suggestion, ODB Load in Sequencer
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Hi all,
for my experiment we ended up with the need of changing lot of parameters (~9000 values) in the ODB at once by the sequencer.
The very first solution was to use a sequencer function with a ton of ODBSET calls, however a more elegant solution may be to provide an "ODBLoad" command |
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28 Jun 2021, Stefan Ritt, Suggestion, ODB Load in Sequencer
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> Hi all,
> for my experiment we ended up with the need of changing lot of parameters (~9000 values) in the ODB at once by the sequencer.
> The very first solution was to use a sequencer function with a ton of ODBSET calls, however a more elegant solution may be to provide an "ODBLoad" command |
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28 Jun 2021, Konstantin Olchanski, Suggestion, ODB Load in Sequencer
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> Hi all,
> for my experiment we ended up with the need of changing lot of parameters (~9000 values) in the ODB at once by the sequencer.
> The very first solution was to use a sequencer function with a ton of ODBSET calls, however a more elegant solution may be to provide an "ODBLoad" command |
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28 Jun 2021, Stefan Ritt, Suggestion, ODB Load in Sequencer
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> > Hi all,
> > for my experiment we ended up with the need of changing lot of parameters (~9000 values) in the ODB at once by the sequencer.
> > The very first solution was to use a sequencer function with a ton of ODBSET calls, however a more elegant solution may be to provide an "ODBLoad" |
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28 Jun 2021, Konstantin Olchanski, Suggestion, ODB Load in Sequencer
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> > > Hi all,
> > > for my experiment we ended up with the need of changing lot of parameters (~9000 values) in the ODB at once by the sequencer.
> > > The very first solution was to use a sequencer function with a ton of ODBSET calls, however a more elegant solution may be to provide an "ODBLoad" |
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28 Jun 2021, Stefan Ritt, Suggestion, ODB Load in Sequencer
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> > > > Hi all,
> > > > for my experiment we ended up with the need of changing lot of parameters (~9000 values) in the ODB at once by the sequencer.
> > > > The very first solution was to use a sequencer function with a ton of ODBSET calls, however a more elegant solution may be to provide an "ODBLoad" |
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28 Jun 2021, Konstantin Olchanski, Suggestion, ODB Load in Sequencer
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> ... at MEG, we keep hundreds of XML files for configuration. Mostly historical, but that's how it is.
same here, lots of historical .odb and .xml files.
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28 Jun 2021, Marco Francesconi, Suggestion, ODB Load in Sequencer
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My idea was to collect some feedback instead of blindly submitting code for a pull request.
Currently I'm just calling db_load() with a given file, so it is only supporting .odb formatting.
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29 Jun 2021, Marco Francesconi, Suggestion, ODB Load in Sequencer
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I just submitted a pull request for this feature, I did quite a lot of testing and it looks good to me.
Let me know if something is not clear.
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30 Jun 2021, Stefan Ritt, Suggestion, ODB Load in Sequencer
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| I quickly checked the pull request and could not find any obvious problem, so I merged it. |
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18 Jun 2021, Konstantin Olchanski, Bug Report, my html modbvalue thing is not working?
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I have a web page and I try to use modbvalue, but nothing happens. The best I can tell, I follow the documentation
(https://midas.triumf.ca/MidasWiki/index.php/Custom_Page#modbvalue).
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25 Jun 2021, Stefan Ritt, Bug Report, my html modbvalue thing is not working?
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Can you post your complete page here so that I can have a look?
Stefan |
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21 Jun 2021, Lars Martin, Bug Report, ELog documentation inconsistency
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The documentation fro the Elog ODB tree here:
https://midas.triumf.ca/MidasWiki/index.php//Elog_ODB_tree#Url
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17 Jun 2021, Joseph McKenna, Info, Add support for rtsp camera streams in mlogger (history_image.cxx)
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mlogger (history_image) now supports rtsp cameras, in ALPHA we have
acquisitioned several new network connected cameras. Unfortunately they dont
have a way of just capturing a single frame using libcurl
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18 Jun 2021, Konstantin Olchanski, Info, Add support for rtsp camera streams in mlogger (history_image.cxx)
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> mlogger (history_image) now supports rtsp cameras
my goodness, we will drive the video surveillance industry out of business.
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