 15 Jun 2020, Isaac Labrie Boulay, Bug Report, Killing and ODB - Removed ODB client because process pid does not exists
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Hey everyone,
When I run mhttpd I get the following error message:
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15 Jun 2020, Martin Mueller, Bug Report, deprecated function stime()
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Hi
I had a problem with the compilation of midas after an OS update to the recent version of OpenSuse tumbleweed. The function stime() in system.cxx:3196 |
 15 Jun 2020, Stefan Ritt, Bug Report, deprecated function stime()
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The function stime() has been replaced by clock_settime() on Feb. 2020:
https://bitbucket.org/tmidas/midas/commits/c732120e7c68bbcdbbc6236c1fe894c401d9bbbd
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09 Jun 2020, Isaac Labrie Boulay, Info, Preparing the VME hardware - VME address jumpers. 
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Hey folks,
I'm currently working on setting up a MIDAS experiment and I am following the
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10 Jun 2020, Konstantin Olchanski, Info, Preparing the VME hardware - VME address jumpers.
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Hi, if you are not using any VME hardware, then you have no VME address jumpers to
set. https://en.wikipedia.org/wiki/VMEbus
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12 Jun 2020, Isaac Labrie Boulay, Info, Preparing the VME hardware - VME address jumpers.
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> Hi, if you are not using any VME hardware, then you have no VME address jumpers to
> set. https://en.wikipedia.org/wiki/VMEbus
>
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10 Jun 2020, Ivo Schulthess, Forum, slow-control equipment crashes when running multi-threaded on a remote machine
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Dear all
To reduce the time needed by Midas between runs, we want to change some of our periodic equipment to multi-threaded slow-control equipment. To do that |
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10 Jun 2020, Konstantin Olchanski, Forum, slow-control equipment crashes when running multi-threaded on a remote machine
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Yes, it is supposed to crash. On a remote frontend, cm_get_path() cannot be used
(we are on a different computer, all filesystems maybe no the same!) and is actually not set and
triggers a trap if something tries to use it. (this is the crash you see).
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10 Jun 2020, Stefan Ritt, Forum, slow-control equipment crashes when running multi-threaded on a remote machine
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Few comments:
- As KO write, we might need semaphores also on a remote front-end, in case several programs share the same hardware. So it should work and cm_get_path() |
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12 Jun 2020, Ivo Schulthess, Forum, slow-control equipment crashes when running multi-threaded on a remote machine
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Thanks you two once again for the very fast answers. I tested the example on the local machine and it works perfectly fine. In the meantime I also created
two new drivers for our devices
and everything works with them, the improvement in time is significant and I will create drivers for all our devices where possible. If they are in a working |
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04 Jun 2020, Lars Martin, Bug Report, midasodb.cxx RBA appends instead of replacing
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I am on branch develop and use the tmfe frontends. I found that a bool vector
gets bigger every time I read it from the ODB.
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30 May 2020, Gennaro Tortone, Bug Report, wrong run number
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Hi,
I build MIDAS and ROOTANA using same tag (midas-2020-03-a, rootana-2020-03-a):
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30 May 2020, Thomas Lindner, Bug Report, wrong run number
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Hi,
I fixed this particular case, so that I now I get the run number correctly.
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30 May 2020, Gennaro Tortone, Bug Report, wrong run number
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Hi,
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03 Jun 2020, Konstantin Olchanski, Bug Report, wrong run number
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>
> But Konstantin will need to explain how this class is supposed to be used more generally.
>
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03 Jun 2020, Konstantin Olchanski, Bug Report, wrong run number
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> I build MIDAS and ROOTANA using same tag (midas-2020-03-a, rootana-2020-03-a):
>
> MVOdb::SetMidasStatus: Error: MIDAS db_get_value() at ODB path "//runinfo/Run
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03 Jun 2020, Gennaro Tortone, Bug Report, wrong run number
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> > I build MIDAS and ROOTANA using same tag (midas-2020-03-a, rootana-2020-03-a):
> >
> > MVOdb::SetMidasStatus: Error: MIDAS db_get_value() at ODB path "//runinfo/Run
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04 Jun 2020, Konstantin Olchanski, Bug Report, wrong run number
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> > You made a mistake somewhere.
>
> you are right !
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04 Jun 2020, Lukas Gerritzen, , stime() deprecated in glibc 2.31
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In glibc 2.31, the stime function was deprecated:
* The obsolete function stime is no longer available to newly linked
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04 Jun 2020, Hisataka YOSHIDA, Forum, Template of slow control frontend
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I’m beginner of Midas, and trying to develop the slow control front-end with the latest Midas.
I found the scfe.cxx in the “example”, but not enough to refer to write the front-end for my own devices
because it contains only nulldevice and null bus driver case...
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04 Jun 2020, Pintaudi Giorgio, Forum, Template of slow control frontend
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> I’m beginner of Midas, and trying to develop the slow control front-end with the latest Midas.
> I found the scfe.cxx in the “example”, but not enough to refer to write the front-end for my own devices
> because it contains only nulldevice and null bus driver case...
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04 Jun 2020, Hisataka YOSHIDA, Forum, Template of slow control frontend
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Dear Giorgio,
Thank you very much for your kind and quick reply!
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04 Jun 2020, Stefan Ritt, Forum, Template of slow control frontend
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> I’m beginner of Midas, and trying to develop the slow control front-end with the latest Midas.
> I found the scfe.cxx in the “example”, but not enough to refer to write the front-end for my own devices
> because it contains only nulldevice and null bus driver case...
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04 Jun 2020, Hisataka YOSHIDA, Forum, Template of slow control frontend
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Dear Stefan,
Thank you for you quick reply.
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24 Apr 2020, Pintaudi Giorgio, Forum, API to read MIDAS format file
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Dear MIDAS people,
I need to borrow your wisdom for a bit.
I am developing a piece of software that should read the history data stored in a
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24 Apr 2020, Stefan Ritt, Forum, API to read MIDAS format file
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I guess all three options would work. I just tried mhist and it still works with the "FILE" history
mhist -e <equipment name> -v <variable name> -h 10
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24 Apr 2020, Pintaudi Giorgio, Forum, API to read MIDAS format file
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[quote="Stefan Ritt"]I guess all three options would work. I just tried mhist and it still works with the "FILE" history
mhist -e <equipment name> -v <variable name> -h 10
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24 Apr 2020, Stefan Ritt, Forum, API to read MIDAS format file
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[quote="Pintaudi Giorgio"]
Hypothetically which one between the two lends itself the better to being "batched"? I mean to be read and controlled by a program/routine. For example,
some programs give the option to have the output formatted in json, etc...[/quote]
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25 Apr 2020, Konstantin Olchanski, Forum, API to read MIDAS format file
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<p>[quote="Pintaudi Giorgio"]Dear MIDAS people, I need to borrow your
wisdom for a bit. I am developing a piece of software that should read the history data
stored in a [FONT=Times New Roman].midas[/FONT] file (MIDAS format) and integrate it
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03 May 2020, Pintaudi Giorgio, Forum, API to read MIDAS format file
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> The format of .hst midas history files is pretty simple and mhdump.cxx is an easy to read
> illustration on how to read it from basic principles (without going through the midas library,
> which can be somewhat complicated). The newer "FILE" format for history is even simpler
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03 May 2020, Konstantin Olchanski, Forum, API to read MIDAS format file
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>
> - One is to convert to SQL format and then use a SQLite library to import the data in my
> application.
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04 May 2020, Pintaudi Giorgio, Forum, API to read MIDAS format file
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> (But note that back when I implemented the SQLITE history writer, sqlite database corruption
> recovery instructions were "delete the file, restore from backup". And indeed in every test
> experiment I tried, the sqlite history databases eventually corrupted themselves. You see
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03 May 2020, Stefan Ritt, Forum, API to read MIDAS format file
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> PS some time ago, I don't remember if you or Stefan, recommended CLion as C++ IDE. I have tried it
> (together with PyCharm) and I must admit that it is really good. It took me years to configure Emacs
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26 May 2020, Pintaudi Giorgio, Forum, API to read MIDAS format file
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Eventually, I have settled for the SQLite format.
I could convert the MIDAS history files .hst to SQLite
database .sqlite3 using the utility mh2sql.
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22 May 2020, Thomas Lindner, Bug Report, More trouble with openssl on macos
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For the record, here's my report of difficulties getting mongoose to compile with macos. This is a similar
problem reported before, but with slightly different error messages. So I put them here for posterity.
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22 May 2020, Konstantin Olchanski, Bug Report, More trouble with openssl on macos
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> For the record, here's my report of difficulties getting mongoose to compile with macos.
> -- MIDAS: Found OpenSSL version 1.0.2s
> -- MIDAS: Found OpenSSL version 1.1.1g
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16 Mar 2020, Konstantin Olchanski, Release, midas-2020-03-a
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midas-2020-03-a is here.
Accumulated changes and bug fixes since last tag midas-2019-09-i.
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22 May 2020, Konstantin Olchanski, Release, midas-2020-03-a
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> midas-2020-03-a is here.
> checkout the top of branch release/midas-2020-03 (recommended) or
> checkout the tag midas-2020-03-a.
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12 May 2020, Ruslan Podviianiuk, Forum, List of sequencer files
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Hello,
We are going to implement a list of sequencer files to allow users to select one
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13 May 2020, Stefan Ritt, Forum, List of sequencer files
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If you load a file into the sequencer from the web interface, you get a list of all files in that directory.
This basically gives you a list of possible sequencer files. It's even more powerful, since you can
create subdirectories and thus group the sequencer files. Attached an example from our
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18 May 2020, Ruslan Podviianiuk, Forum, List of sequencer files
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> If you load a file into the sequencer from the web interface, you get a list of all files in that directory.
> This basically gives you a list of possible sequencer files. It's even more powerful, since you can
> create subdirectories and thus group the sequencer files. Attached an example from our
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19 May 2020, Ruslan Podviianiuk, Forum, List of sequencer files
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> If you load a file into the sequencer from the web interface, you get a list of all files in that directory.
> This basically gives you a list of possible sequencer files. It's even more powerful, since you can
> create subdirectories and thus group the sequencer files. Attached an example from our
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20 May 2020, Konstantin Olchanski, Forum, List of sequencer files
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>
> We have a custom webpage and trying to get list of files from the custom webpage and need jrpc command to show it
> in custom page. Is there a jrpc command to get this file list?
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07 May 2020, Estelle, Bug Report, Conflic between Rootana and midas about the redefinition of TID_xxx data types
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Dear Midas and Rootana people,
We have tried to update our midas DAQ with the new TID definitions describe in https://midas.triumf.ca/elog/Midas/1871
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20 May 2020, Konstantin Olchanski, Bug Report, Conflic between Rootana and midas about the redefinition of TID_xxx data types
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> Dear Midas and Rootana people,
>
> We have tried to update our midas DAQ with the new TID definitions describe in https://midas.triumf.ca/elog/Midas/1871
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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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01 May 2020, Stefan Ritt, Forum, Taking MIDAS beyond 64 clients
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Hi Joseph,
here some thoughts from my side:
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01 May 2020, Pierre Gorel, Forum, Taking MIDAS beyond 64 clients
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> - On the other hand, if we have to break compatibility, now is maybe a good time since most accelerators worldwide are off. But before doing so, I would
like to get feedback from the main experiments
> around the world (MEG, T2K, g-2, DEAP besides ALPHA).
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02 May 2020, Stefan Ritt, Forum, Taking MIDAS beyond 64 clients
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TRIUMF stayed quiet, probably they have other things to do.
I allowed myself to move the maximum number of clients back to its original value, in order not to break running experiments.
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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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02 May 2020, Stefan Ritt, Forum, Taking MIDAS beyond 64 clients
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> Perhaps a item for future discussion would be for the odbinit program to be able to 'upgrade' the ODB and enable some backwards
> compatibility.
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02 May 2020, Konstantin Olchanski, Forum, Taking MIDAS beyond 64 clients
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>
> Does the community here have strong opinions about increasing the
> MAX_CLIENTS and MAX_RPC_CONNECTION limits?
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02 May 2020, Konstantin Olchanski, Forum, Taking MIDAS beyond 64 clients
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> >
> > Does the community here have strong opinions about increasing the
> > MAX_CLIENTS and MAX_RPC_CONNECTION limits?
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02 May 2020, Konstantin Olchanski, Forum, Taking MIDAS beyond 64 clients
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> > >
> > > Does the community here have strong opinions about increasing the
> > > MAX_CLIENTS and MAX_RPC_CONNECTION limits?
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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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03 Apr 2020, Stefan Ritt, 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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25 Apr 2020, Konstantin Olchanski, Info, CLOCK_REALTIME on MacOS
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> > /Users/francesco/MIDAS/midas/src/system.cxx:3187:18: error: use of undeclared identifier
> > 'CLOCK_REALTIME'
> > clock_settime(CLOCK_REALTIME, <m);
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26 Apr 2020, Stefan Ritt, Info, CLOCK_REALTIME on MacOS
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> > > /Users/francesco/MIDAS/midas/src/system.cxx:3187:18: error: use of undeclared identifier
> > > 'CLOCK_REALTIME'
> > > clock_settime(CLOCK_REALTIME, <m);
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26 Apr 2020, Yu Chen (SYSU), Forum, Questions and discussions on the Frontend ODB tree structure.
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Dear MIDAS developers and colleagues,
This is Yu CHEN of School of Physics, Sun Yat-sen University, China, working in the PandaX-III collaboration, an experiment under development to search |
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26 Apr 2020, Stefan Ritt, Forum, Questions and discussions on the Frontend ODB tree structure.
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Dear Yu Chen,
in my opinion, you can follow two strategies:
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25 Apr 2020, Konstantin Olchanski, Info, new mac!
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I received my new 2020 mac book air, so between Stefan and myself, MacOS support for
MIDAS is assured for 5 more years at the least. K.O. |
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07 Apr 2020, Ivo Schulthess, Suggestion, Sequencer loop break
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I am using the Midas sequencer to run subsequent measurements in a loop, without
knowing how many iterations in advance. Therefore, I am using the "infinity"
option. Since I have other commands after the loop, it would be nice to have the
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21 Apr 2020, Stefan Ritt, Suggestion, Sequencer loop break
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> I am using the Midas sequencer to run subsequent measurements in a loop, without
> knowing how many iterations in advance. Therefore, I am using the "infinity"
> option. Since I have other commands after the loop, it would be nice to have the
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23 Apr 2020, Ivo Schulthess, Suggestion, Sequencer loop break
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> You can do that with the "GOTO" statement, jumping to the first line after the loop.
>
> Here is a working example:
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23 Apr 2020, Stefan Ritt, Suggestion, Sequencer loop break
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> > You can do that with the "GOTO" statement, jumping to the first line after the loop.
> >
> > Here is a working example:
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25 Apr 2020, Konstantin Olchanski, Suggestion, Sequencer loop break
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> LOOP runs, 5
> ...
> ENDLOOP
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16 Mar 2020, Konstantin Olchanski, Info, mhttpd mongoose 6.16 update
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the update of mhttpd to mongoose version 6.16 was committed to the develop branch of midas. If you do not want to use this
updated code or if it causes problems, please use the mhttpd6 executable or midas from the midas-2020-03 release branch.
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16 Mar 2020, Konstantin Olchanski, Info, mhttpd mongoose 6.16 update
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> the update of mhttpd to mongoose version 6.16 was committed to the develop branch of midas.
The new code implements 3 http ports:
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16 Mar 2020, Konstantin Olchanski, Info, mhttpd mongoose 6.16 update
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> > the update of mhttpd to mongoose version 6.16 was committed to the develop branch of midas.
Configuration is done by ODB /WebServer:
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17 Mar 2020, Konstantin Olchanski, Info, mbedtls, mhttpd mongoose 6.16 update
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> > > the update of mhttpd to mongoose version 6.16 was committed to the develop branch of midas.
current code looks for the mbedtls library in ../mbedtls (next to midas)
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30 Mar 2020, Stefan Ritt, Info, mbedtls, mhttpd mongoose 6.16 update
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I had some quick look at the new mongoose code and didn't find anything I dislike. Did a quick test of the proxy which worked and is nice to have.
Agree with all KO said about authentication.
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25 Mar 2020, Andreas Suter, Forum, mlogger: misleading error messages for ROOT
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Dear All,
At our experiment we write ROOT files. When starting/stopping runs we get the following error messages:
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25 Mar 2020, Konstantin Olchanski, Forum, mlogger: misleading error messages for ROOT
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> [Logger,ERROR] [mlogger.cxx:3358:root_write,ERROR] Cannot write system event into ROOT file, event_id 0xffff8000
Hi, Andreas, please open a bug report for this problem on bitbucket, there is now at least 2 bugs against
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27 Mar 2020, Stefan Ritt, Forum, mlogger: misleading error messages for ROOT
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Dear simplest solution seems to me to just remove the error message generation and silently ignore the BOE EOR events.
Committed that change.
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27 Mar 2020, Andreas Suter, Forum, mlogger: misleading error messages for ROOT
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Hi Stefan,
I think this only partially resolves the issue, in log_write:
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27 Mar 2020, Stefan Ritt, Forum, mlogger: misleading error messages for ROOT
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Ok, changed.
Stefan |