 22 Nov 2018, Konstantin Olchanski, Info, status of self-signed https certificates
|
I just happened to check the current situation with self-signed https certificates as implemented in mhttpd.
(To remember, the powers-that-be are pushing for universal use of https for all web access. The https
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 30 Nov 2018, Stefan Ritt, Info, status of self-signed https certificates
|
> In the mean time, we continue to recommend that mhttpd should be used behind a password protected https proxy (i.e. apache
> httpd, etc).
|
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03 Dec 2018, Konstantin Olchanski, Info, status of self-signed https certificates
|
> > In the mean time, we continue to recommend that mhttpd should be used behind a password protected https proxy (i.e. apache
> > httpd, etc).
>
|
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10 Jun 2019, Konstantin Olchanski, Info, status of self-signed https certificates
|
> > > In the mean time, we continue to recommend that mhttpd should be used behind a password protected https proxy (i.e. apache
> > > httpd, etc).
|
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13 Jan 2020, Konstantin Olchanski, Info, status of self-signed https certificates
|
Now firefox returns the same error. version 72.0.1.
> daqlabpc.triumf.ca has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You |
|
30 Apr 2019, Konstantin Olchanski, Info, How to convert C midas frontends to C++
|
To convert a MIDAS frontend to C++ follow this checklist:
a) add #include "mfe.h" after include of midas.h and fix all compilation errors.
|
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05 Jun 2019, Konstantin Olchanski, Info, How to convert C midas frontends to C++
|
> To convert a MIDAS frontend to C++ follow this checklist:
Pierre A.-A. reminded me that include files for CAEN libraries have to
|
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13 Jan 2020, Konstantin Olchanski, Info, How to convert C midas frontends to C++, CAEN libraries
|
Big thanks to Peter Kunz - specifically when using the CAEN libraries:
>
|
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23 Jul 2019, Frederik Wauters, Forum, How to convert C midas frontends to C++
|
I am moving our fe code to c++ midas with cmake. I did encounter your a) problems.
How do I solve mismatched declarations in the mfe (or other places in the midas code)? It is having issues with the midas defined BOOL/... types. This |
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23 Jul 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++
|
Did you include mfe.h as written in elog:1526 ?
Stefan |
23 Jul 2019, Frederik Wauters, Forum, How to convert C midas frontends to C++ 
|
> Did you include mfe.h as written in elog:1526 ?
>
> Stefan
|
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23 Jul 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++
|
Have you left any "extern C" in your frontend program or in any of the used header file. Seems
like the linker cannot find the poll_event in your frontend code. If it's there, but it's compiled
with C calling (instead of C++), the name mangling causes it to be invisible to the linker. That
|
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23 Jul 2019, Lukas Gerritzen, Forum, How to convert C midas frontends to C++
|
Can you post the exact command that cmake executes to link sc_fe_mini (with make VERBOSE=1)?
I have noticed similar linking problems that depended on the order when linking. In my case, it
|
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25 Jul 2019, Frederik Wauters, Forum, How to convert C midas frontends to C++ (my problem solved)
|
Ok, so the detail that I missed was that the dummy functions
|
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30 Jul 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++ (my problem solved)
|
> as a side comment, not all drivers are c++ compatible yet (e.g. mscbvr), so changes needed are small
Right. We recently switched the whole midas to c++, but we could not cover all drivers. Most of them just need some type
|
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01 Aug 2019, Stefan Ritt, Forum, How to convert C midas frontends to C++ (my problem solved)
|
>
> Ok, so the detail that I missed was that the dummy functions
>
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09 Aug 2019, Konstantin Olchanski, Forum, How to convert C midas frontends to C++
|
> How do I solve mismatched declarations in the mfe (or other places in the midas code)?
I run into such problems all the time. My solution? I grep for the function name in my code and in the header file,
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12 Jan 2020, Konstantin Olchanski, Info, midas on centos-8 status
|
I now have a centos-8 computer and I tried midas on it:
- the develop and midas-2019-09 branches build, mhttpd runs
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06 Jan 2020, Alireza Talebitaher, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
Hello,
I am quite new in both Linux and MIDAS.
|
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06 Jan 2020, Konstantin Olchanski, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
> I am quite new in both Linux and MIDAS.
> I have install MIDAS on my desktop by going through this link:
> https://midas.triumf.ca/MidasWiki/index.php/Quickstart_Linux
|
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07 Jan 2020, Alireza Talebitaher, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
Hi Konstantin,
Thanks for your reply,
|
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07 Jan 2020, Konstantin Olchanski, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
Hi, I have not run midas on Centos-8 yet. Maybe there is a problem with the openssl library there. The Centos-7
instructions for setting up apache httpd proxy are here, with luck they work on centos-8:
|
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08 Jan 2020, Alireza Talebitaher, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
Hi,
As, the link suggests, I perform "yum install -y mod_ssl certwatch crypto-utils" but it complains as:
No match for argument: certwatch
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12 Jan 2020, Konstantin Olchanski, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
> > The Centos-7 instructions for setting up apache httpd proxy are here, with luck they work on centos-8:
> > https://daq.triumf.ca/DaqWiki/index.php/SLinstall#Configure_HTTPS_server_.28CentOS7.29
|
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12 Jan 2020, Konstantin Olchanski, Forum, SSL_ERROR_NO_CYPHER_OVERLAP
|
> I am using CentOS 8 [and]
> Firefox 71.0
|
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27 Sep 2019, Konstantin Olchanski, Release, midas-2019-09
|
I created the release branch for midas-2019-09 and tag midas-2019-09-a.
Since the previous release midas-2019-06, some news:
|
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04 Dec 2019, Konstantin Olchanski, Release, midas-2019-09-e
|
> I created the release branch for midas-2019-09 and tag midas-2019-09-a.
> Since the previous release midas-2019-06, some news:
>
|
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11 Dec 2019, Konstantin Olchanski, Release, midas-2019-09-g
|
midas-2019-09-g is here.
- the last bug in the new history plots is fixed, please try them out, plus
|
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22 Dec 2019, Konstantin Olchanski, Release, midas-2019-09-i
|
midas-2019-09-i is here.
- the new sequencer web pages written in html+javascript (NewSequencer), the old c-generated sequencer pages still work (Sequencer)
|
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08 Aug 2019, Konstantin Olchanski, Info, c++11 for RHEL/SL/CentOS-6
|
The default el6 (RHEL/SL/CentOS-6) compiler is gcc-4.4.7, it does not support c++11, not even a little bit.
Do this to install newer c++ compilers and build MIDAS with c++11:
|
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06 Dec 2019, Konstantin Olchanski, Info, c++11 for RHEL/SL/CentOS-6
|
> The default el6 (RHEL/SL/CentOS-6) compiler is gcc-4.4.7, it does not support c++11, not even a little bit.
The previously posted instructions are incomplete - one cannot cross-compile 32-bit executables (i.e. for running on 32-bit VME
|
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18 Oct 2019, Joseph McKenna, Info, sysmon: New system monitor and performance logging frontend added to MIDAS
|
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
|
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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27 Sep 2019, Konstantin Olchanski, Bug Fix, improvement for midas web page resource use
|
I noticed that midas web pages consume unexpectedly large amount of resources, as observed by the chrome browser
"task manager" and by other tools.
|
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27 Sep 2019, Konstantin Olchanski, Bug Fix, improvement for midas web page resource use (alarm sound)
|
> I noticed that midas web pages consume unexpectedly large amount of resources, as observed by the chrome browser
> "task manager" and by other tools.
>
|
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28 Nov 2019, Konstantin Olchanski, Bug Fix, improvement for midas web page resource use (alarm sound and fit_message)
|
> > I noticed that midas web pages consume unexpectedly large amount of resources, as observed by the chrome browser
> > "task manager" and by other tools.
|
|
28 Nov 2019, Konstantin Olchanski, Bug Fix, improvement for midas web page resource use (alarm sound and fit_message)
|
> > > I noticed that midas web pages consume unexpectedly large amount of resources, as observed by the chrome browser
> > > "task manager" and by other tools.
|
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28 Nov 2019, Konstantin Olchanski, Bug Report, midas alarm sound unreliable in google-chrome
|
I accidentally discovered a problem with the alarm sounds played by midas.
The javascript code is very simple: var audio=new Audio("alarm.mp3"); audio.play();
|
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28 Nov 2019, Stefan Ritt, Bug Report, midas alarm sound unreliable in google-chrome
|
The document
https://docs.google.com/document/d/1_278v_plodvgtXSgnEJ0yjZJLg14Ogf-ekAFNymAJoU/edit
|
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15 Nov 2019, Andreas Suter, Suggestion, javascript comunication
|
I am currently testing the new history system on the mhttpd side and stumbled over the following issue: typically our user open a lot of midas web-page
tabs and keep them open. With the current version this leads after a night typically to a state where the browser is busy with itself and not reacting
anymore.
|
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15 Nov 2019, Stefan Ritt, Suggestion, javascript comunication
|
Very good idea. And thanks for finding the document.hidden solution. I put it in, so give it a try.
Best,
|
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17 Nov 2019, Konstantin Olchanski, Suggestion, javascript comunication
|
> Very good idea. And thanks for finding the document.hidden solution. I put it in, so give it a try.
Hi, Stefan - I did not look at your code, if all midas tabs are inactive, will the alarm sound still play?
|
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18 Nov 2019, Stefan Ritt, Suggestion, javascript comunication
|
> Hi, Stefan - I did not look at your code, if all midas tabs are inactive, will the alarm sound still play?
Nope. All updates are done in mhhtpd_refresh(), and I changed it such that nothing is updated if hidden.
|
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18 Nov 2019, Konstantin Olchanski, Suggestion, javascript comunication
|
> > Hi, Stefan - I did not look at your code, if all midas tabs are inactive, will the alarm sound still play?
> I added some code to do ONLY alarm updates if in the background (once every 10 seconds)
|
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17 Nov 2019, Konstantin Olchanski, Suggestion, javascript comunication
|
> I am currently testing the new history system on the mhttpd side and stumbled over the following issue:
> typically our user open a lot of midas web-page tabs and keep them open. With the current version this leads after a night typically to a state where
the browser is busy with itself and not reacting anymore.
|
|
18 Nov 2019, Stefan Ritt, Suggestion, javascript comunication
|
> a) google chrome slows down the execution of javascript in inactive tabs, leading to trouble
> with memory management - midas pages poll at 1/sec, each poll allocates memory for processing RPC messages,
> and (until recently) allocates memory for new DOM objects to update the web page - but the garbage collector
|
|
08 Nov 2019, Pierre Gorel, Bug Report, Newly installed MIDAS on OSX: mhttpd crahes
|
Context: out of the box MIDAS (using cmake) on OSX Mojave.
Running with mongoose/opensslm installation following instruction here:
|
|
12 Nov 2019, Konstantin Olchanski, Bug Report, Newly installed MIDAS on OSX: mhttpd crahes
|
> Context: out of the box MIDAS (using cmake) on OSX Mojave.
>
> Running with mongoose/opensslm installation following instruction here:
|
|
15 Nov 2019, Pierre Gorel, Bug Report, Newly installed MIDAS on OSX: mhttpd crahes
|
It is reproducible alright.
Here are the core dump and the backtrace (I think the former is more informative).
|
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15 Nov 2019, Konstantin Olchanski, Bug Report, Newly installed MIDAS on OSX: mhttpd crahes
|
> It is reproducible alright.
Thanks. At first blush, a guess, read_passwords() is not thread-safe and is called from multiple threads, not protected by semaphore. Crash report shows |
|
20 Sep 2019, Frederik Wauters, Bug Report, lazylogger in cmake & max_event_size
|
compiling:
----------
|
|
27 Sep 2019, Konstantin Olchanski, Bug Report, lazylogger in cmake & max_event_size
|
> The compile option -DHAVE_FTPLIB checked in mdsupport.cxx disappeared if you
> compile with cmake.
|
|
14 Oct 2019, Stefan Ritt, Bug Report, lazylogger in cmake & max_event_size
|
> > The compile option -DHAVE_FTPLIB checked in mdsupport.cxx disappeared if you
> > compile with cmake.
>
|
|
24 Oct 2019, Konstantin Olchanski, Bug Report, lazylogger in cmake & max_event_size
|
> > > The compile option -DHAVE_FTPLIB checked in mdsupport.cxx disappeared if you
> > > compile with cmake.
> >
|
|
21 Oct 2019, Vinzenz Bildstein, Forum, Data for key truncated
|
I keep on getting messages like this:
16:25:35 [fecaen,ERROR] [odb.c:4567:db_get_data,ERROR] data for key
|
|
23 Oct 2019, Konstantin Olchanski, Forum, Data for key truncated
|
> I keep on getting messages like this:
> 16:25:35 [fecaen,ERROR] [odb.c:4567:db_get_data,ERROR] data for key
> "/DAQ/params/VX1730/custom/Board 0/Channel 0/Input range" truncated
|
|
23 Sep 2019, Frederik Wauters, Suggestion, recover daq and hardware safety.
|
We have encountered a safety issue with our HPGe HV and it's midas frontend. Turning off or changing HV unknowingly has to be avoided at all costs.
Current safety protection
We use the DF_REPORT_STATUS flag to give the hardware settings precedence over
odb settings. This all takes place in the init. |
|
27 Sep 2019, Konstantin Olchanski, Suggestion, recover daq and hardware safety.
|
> We have encountered a safety issue with our HPGe HV and it's midas frontend.
At TRIUMF and other labs the words "safety issue" have very specific meaning and
|
|
28 Sep 2019, Frederik Wauters, Suggestion, recover daq and hardware safety.
|
Dear Konstantin,
So let me retract the term "safety issue" then, it was more a request/question for this type of
|
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29 Sep 2019, Konstantin Olchanski, Suggestion, recover daq and hardware safety.
|
>
> The issue occurs when e.g. one channel can not be turned on and ramp for some temp/specific
> reason, and someone else is working on the daq and reloads the odb for e.g. 1h ago.
|
|
15 Oct 2019, Stefan Ritt, Suggestion, recover daq and hardware safety.
|
There is a not-so-well-known function in the ODB to write protect some keys. You can do
odbedit> chmod 1 /Equipment/HV/Demand
|
|
14 Oct 2019, Joseph McKenna, Forum, tmfe.cxx - Future frontend design
|
Hi,
I have been looking at the 2019 workshop slides, I am interested in the C++ future of MIDAS.
|
|
06 Oct 2019, Nik Berger, Bug Report, History data size mismatch
|
Logging a list of variables to the history via links in the history ODB subtree,
we get messages as follows at every run start:
|
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06 Oct 2019, Stefan Ritt, Bug Report, History data size mismatch
|
I wonder why do you this via ODB links. The "standard" way of writing to the history should be to create events for an equipment and flag this equipment
as being written to the
history. All variables under /Equipment/<name>/Variables then automatically go into the history and you don't have to worry about ODB links. Only variables |
|
10 Oct 2019, Konstantin Olchanski, Bug Report, History data size mismatch
|
>
> In our history, a long list of doubles (64 Bit) fas followed by three floats (32 bit)
>
|
|
10 Oct 2019, Nik Berger, Bug Report, History data size mismatch
|
>I wonder why do you this via ODB links. The "standard" way of writing to the history should be to create events for an equipment and flag this equipment
as being written to the
>history. All variables under /Equipment/<name>/Variables then automatically go into the history and you don't have to worry about ODB links. Only variables |
|
10 Oct 2019, Stefan Ritt, Bug Report, History data size mismatch
|
> Yes, we could have
> kept that apart, yes, in this case a double would also work (and not break things), but a bug is a bug...
> I could think of senisble use cases where doubles and ints are mixed and I also know quite a few areas where it makes
|
|
28 Sep 2019, Pintaudi Giorgio, Forum, MIDAS interface for WAGASCI online monitor
|
Hello!
This question is rather complex so please forgive me if I leave out some
details.
|
|
29 Sep 2019, Thomas Lindner, Forum, MIDAS interface for WAGASCI online monitor
|
Hi Pintaudi Giorgio,
I think that the ROOT THttpServer is an option. The ROOT tools are not perfect, but it is relatively easy to embed plots in custom MIDAS pages. I have |
|
29 Sep 2019, Konstantin Olchanski, Forum, MIDAS interface for WAGASCI online monitor
|
> online monitor would show (almost in real-time) the
> gain, the dark noise, and the pedestal for all the channels, the 2D tracks
> inside the detectors for each spill and so on.
|
|
29 Sep 2019, Pintaudi Giorgio, Forum, MIDAS interface for WAGASCI online monitor
|
Dear Thomas and Konstantin,
thank you very much for the feedback. I found the ROOTANA javascript display a good source of
|
|
30 Sep 2019, Konstantin Olchanski, Forum, MIDAS interface for WAGASCI online monitor
|
>
> As Thomas said, maybe the simplest thing would be to use the ROOT THttpServer. Honestly, I do
> not think that ROOT was ever meant to act as an online monitor due to its wacky memory
|
|
17 Sep 2019, Richard Longland, Forum, mhttpd start and stop redirect to Transition page
|
I recently upgraded to MIDAS version midas-2019-06-b. I had to make a few changes
to get our custom page running again, but am a little confused on starting and
stopping runs. When I click on my "Start" button, it now redirects to a
|
|
27 Sep 2019, Konstantin Olchanski, Forum, mhttpd start and stop redirect to Transition page
|
> I recently upgraded to MIDAS version midas-2019-06-b. I had to make a few changes
> to get our custom page running again, but am a little confused on starting and
> stopping runs.
|
|
06 Sep 2019, Pintaudi Giorgio, Forum, Open a hotlink to a single element in an ODB array
|
Hello!
Just a little question about the ODB hotlinks. Is it possible to open a hotlink
to a single element in and ODB array?
|
|
16 Sep 2019, Konstantin Olchanski, Forum, Open a hotlink to a single element in an ODB array
|
> Is it possible to open a hotlink to a single element in an ODB array?
Not possible.
|
|
26 Sep 2019, Stefan Ritt, Forum, Open a hotlink to a single element in an ODB array
|
[quote="Pintaudi Giorgio"]Hello!
Just a little question about the ODB hotlinks. Is it possible to open a hotlink
to a single element in and ODB array?[/quote]
|
|
27 Sep 2019, Pintaudi Giorgio, Forum, Open a hotlink to a single element in an ODB array
|
Thank you for the feedback.
I will try to use the db_watch function in the future.
I tried to look for more info about the db_watch function in the Wiki but I could not find much.
|
|
27 Sep 2019, Konstantin Olchanski, Forum, Open a hotlink to a single element in an ODB array
|
> I will try to use the db_watch function in the future.
Note that db_watch() and db_open_record() work exactly the same way, both only allow
|
|
14 Aug 2019, Stefan Ritt, Info, New history plot facility
|
During my visit at TRIUMF we rewrote the history plotting functionality of midas. Instead of
static GIF images, we have now interactive JavaScript panels where we can scroll, zoom,
inspect values and much more (example is attached). We are now in a state where this is still
|
|
06 Sep 2019, Andreas Suter, Info, New history plot facility
|
I like the new history system very much, but I stumbled over a couple of issues.
I used the version "Thu Aug 29 08:24:29 2019 +0200 -
midas-2019-06-b-244-gdd6585bb on branch develop":
|
|
06 Sep 2019, Stefan Ritt, Info, New history plot facility
|
> 1) it would be nice to have an option to format the label output (see attachment 1)
That's clearly a bug, I will fix it.
|
|
06 Sep 2019, Andreas Suter, Info, New history plot facility
|
> > 2) the background of a history plot is very handy if you only show one measure.
> > If you have multiple ones (see attachment 2), this is not the case anymore. It
> > would be nice if the background could be enabled/disabled.
|
|
07 Sep 2019, Stefan Ritt, Info, New history plot facility
|
> This I found out, yet the attachment here shows another case where it would be useful to be
> able to disable the background, namely if you have positive and negative measures in one
> plot. Somehow it suggests that CH1 and CH2 show very different values, whereas it is only a
|
|
08 Sep 2019, Stefan Ritt, Info, New history plot facility
|
> 1) it would be nice to have an option to format the label output (see attachment 1)
I fixed that in the current version.
|
|
10 Sep 2019, Andreas Suter, Info, New history plot facility
|
Our typical use case is that a lot of people are connected to the experiment
having some history tabs open most of the time. Hence, I setup a test system and
connect to it from all kind of systems/browsers. What I see currently quite
|
|
16 Sep 2019, Konstantin Olchanski, Info, New history plot facility
|
> I see currently quite often is the error hs_read_arraybuffer (see the
attachement).
> Are there ways to get a log which would document where the problems
|
|
17 Sep 2019, Andreas Suter, Info, New history plot facility
|
> On the mhttpd side, please capture the stack trace from the crash: enable
> core dumps (ODB "/experiment/enable core dumps" set to "y", after the crash,
> run "ls -l core.*; gdb mhttpd core.9999") or run mhttpd inside gdb or attach
|
|
17 Sep 2019, Konstantin Olchanski, Info, New history plot facility
|
> > On the mhttpd side, please capture the stack trace from the crash
>
> here comes the stack trace (only happens when using safari 12.1.2 macOS 10.14.6):
|
|
16 Sep 2019, Konstantin Olchanski, Info, New history plot facility
|
> During my visit at TRIUMF we rewrote the history plotting functionality of midas.
This is a most amazing achievement. We wanted to do this "for years" and I think we have
|
|
16 Sep 2019, Stefan Ritt, Info, New history plot facility
|
> Also the new system is still incomplete, i.e. there is no trivial way to save a history plot into a file:
That has been implemented in meantime. Just click on the download arrow and you can save the current window in CSV or PNG format.
|