 15 Jul 2015, Konstantin Olchanski, Info, ROOT support in flux
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ROOT support in MIDAS is being reworked:
a) ROOT support moved from midas.h to rmidas.h
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 22 Jul 2015, Konstantin Olchanski, Info, ROOT support in flux
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> ROOT support in MIDAS is being reworked:
>
> c) Makefile inconsistency between use of ROOTSYS and use of root-config has been identified,
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22 Jul 2015, Konstantin Olchanski, Info, ROOT support in flux
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> > ROOT support in MIDAS is being reworked:
> >
> > c) Makefile inconsistency between use of ROOTSYS and use of root-config has been identified,
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29 Jul 2015, Konstantin Olchanski, Info, ROOT support in flux
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The preliminary version of the .bashrc blurb looks like this
(a couple of flaws:
1) identification of CentOS7 is incomplete - please send me a patch
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15 Jul 2015, Konstantin Olchanski, Info, mlogger improvements
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A set of improvements to mlogger is in:
a) event buffer (SYSTEM) size up to 2GB
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23 Jul 2015, Konstantin Olchanski, Info, rootana lz4 support, mlogger improvements
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> A set of improvements to mlogger is in:
> b) test version of LZ4 high speed compression, support for bzip2 and pbzip2
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23 Jul 2015, Konstantin Olchanski, Info, mlogger improvements
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> A set of improvements to mlogger is in:
> The current test version implements the following selections of "compression":
>
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29 Jul 2015, Konstantin Olchanski, Info, mlogger improvements - CRC32C, SHA-2
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> A set of improvements to mlogger is in:
Preliminary support for CRC32-zlib, CRC32C, SHA-256 and SHA-512 is in. Checksums are computed correctly, but plumbing configuration is
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29 Jul 2015, Javier Praena, Forum, error 
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Hello, I am new in the forum. We are running an experiment for a week with no
problems. Now we add a detector a we found an error. Even we come back to our
previous configuration the error continues appearing. Please, may someone help
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29 Jul 2015, Wes Gohn, Forum, error
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SIGSEGV is a segmentation fault. Most often it means some ODB parameter is out of bounds or there is
an invalid memcpy somewhere in your code.
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29 Jul 2015, Konstantin Olchanski, Forum, error
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> Hello, I am new in the forum. We are running an experiment for a week with no
> problems. Now we add a detector a we found an error. Even we come back to our
> previous configuration the error continues appearing. Please, may someone help
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24 Jul 2015, Konstantin Olchanski, Info, Plans for improving midas network security
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There is a number of problems with network security in midas. (as separate from web/http/https security).
1) too many network sockets are unnecessarily bound to the external network interface instead of localhost (UDP ports are already bound to localhost on |
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24 Jul 2015, Konstantin Olchanski, Info, MAX_EVENT_SIZE removed
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The define for MAX_EVENT_SIZE was removed from midas.h.
Replacing it is DEFAULT_MAX_EVENT_SIZE set to 4 MiBytes and DEFAULT_BUFFER_SIZE
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15 Jul 2015, Konstantin Olchanski, Bug Fix, compiler warnings cleaned up
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Latest C/C++ compilers (MacOS 10.10, GCC on RHEL7 and Ubuntu) generate a large number of new
warnings about unused variables, unused functions, dead code, failure to check return values of system
calls, etc.
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08 Jul 2015, Pierre-Andre Amaudruz, Forum, Midas seminar
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Dear Midas users,
For the upcoming "Midas Seminar" on the July 15th, you can find the necessary
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09 Jun 2015, Michael McEvoy, Forum, Midas-MSCB SCS2000 integration
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I am using the MSCB SCS2000 to monitor slow control variables (temperatures, voltages, etc). I am trying to
get it set up at fermilab as a test stand in the MC1 building and was wondering if anyone has integrated
Midas with a MSCB SCS2000 before. We have two systems at fermilab, one system that is currently running
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10 Jun 2015, Stefan Ritt, Forum, Midas-MSCB SCS2000 integration
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> If anyone has any ideas or has had previous work with the SCS2000 and knows how to read back the
> internal values please let me know.
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03 Jun 2015, Pierre-Andre Amaudruz, Forum, Midas seminar
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Dear Midas users,
As promise, the first Midas seminar is happening.
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13 May 2015, Andreas Suter, Forum, Check if Client is running from Javascript
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Is there currently an easy way to check from javascript if a midas client is
running? I mean an equivalent to cm_exist.
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13 May 2015, Stefan Ritt, Forum, Check if Client is running from Javascript
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[quote="Andreas Suter"]Is there currently an easy way to check from javascript if a midas client is
running? I mean an equivalent to cm_exist.
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13 May 2015, Thomas Lindner, Forum, Check if Client is running from Javascript
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[quote="Andreas Suter"]Is there currently an easy way to check from javascript if a midas client is
running? I mean an equivalent to cm_exist.
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14 May 2015, Andreas Suter, Forum, Check if Client is running from Javascript
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Thanks a lot! This helps for now.
[quote="Thomas Lindner"][quote="Andreas Suter"]Is there currently an easy way to check from javascript if a midas client is
running? I mean an equivalent to cm_exist.
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13 May 2015, Konstantin Olchanski, Forum, Check if Client is running from Javascript
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> Is there currently an easy way to check from javascript if a midas client is running? I mean an equivalent
to cm_exist.
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07 May 2015, Konstantin Olchanski, Info, midas.triumf.ca https ssl certificate update
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The SSL certificate for https://midas.triumf.ca has been resigned with SHA256 to fix the complaint from google-chrome about SHA1-signed certificate -
SHA1 signatures are now considered to be insufficiently secure, have to be replaced by SHA256.
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05 May 2015, Pierre-Andre Amaudruz, Forum, Midas seminar
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Dear Midas users,
As part of our commitment to Midas improvements, this year Dr. Stefan Ritt is coming to Vancouver
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17 Mar 2015, Wes Gohn, Forum, PosgresQL
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For our MIDAS installation at Fermilab, it is necessary that we be able to write to a PosgresQL
database (MySQL is not supported here). This will be required of both mlogger and mscb.
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17 Mar 2015, Lee Pool, Forum, PosgresQL
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> For our MIDAS installation at Fermilab, it is necessary that we be able to write to a PosgresQL
> database (MySQL is not supported here). This will be required of both mlogger and mscb.
>
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27 Jan 2015, Konstantin Olchanski, Bug Report, getaddrinfo()
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To support IPV6, we need to migrate MIDAS from gethostbyname() to getaddrinfo(). (Thanks to
http://www.openwall.com/lists/oss-security/2015/01/27/9). K.O. |
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15 Dec 2014, Amy Roberts, Forum, lock ODB variables within sequencer?
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Hello,
I'm wondering if it would be possible to add the ability to lock ODB variables as
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13 Nov 2014, Tim Gorringe, Forum, using single frontend with multiple "EQ_POLLED" equipments to generate different data streams
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We have a MIDAS frontend that provides both the readout of raw events
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13 Nov 2014, Pierre-Andre Amaudruz, Forum, using single frontend with multiple "EQ_POLLED" equipments to generate different data streams
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Hi Tim,
Multiple Polling equipment are possible, but you may have to balance the polling
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12 Nov 2014, Robert Pattie, Forum, struct mismatch
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Hi all,
I've started receiving the following error that I can't track down. Does
anyone have a suggestion for where to start looking for the cause of this?
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19 May 2014, Razvan Stefan Gornea, Forum, Weird problem on new installation
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Hello,
I have a very weird problem on a new installation of Midas running also new code. My old code was written with the CAEN VME
library and run from an older PC with a CAEN interface. I now moved to a GEFanuc V7769 with a Tundra II bridge and the frontend is using the UniverseII |
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22 May 2014, Razvan Stefan Gornea, Forum, Weird problem on new installation
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I reduced the parameter space a little bit and I think the problem is somewhere in the framework. What I did is first to make a short program which accesses
the ODB and I was able to access the Settings record. Everything seems to work fine, if parts or all of the record is missing then it is created automatically,
etc. |
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27 May 2014, Razvan Stefan Gornea, Forum, Weird problem on new installation
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I investigated further this problem and this is what I think is going on. Essentially when creating the Settings key, the framework scans all the subkeys
of the parent key to see if any are open. If that's the case it then returns an error on opening the Settings key! Here are the details:
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06 Nov 2014, Stefan Ritt, Forum, Weird problem on new installation
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[quote="Razvan Stefan Gornea"]In my case I have the following structure in ODB right before the framework calls frontend_init():
/Equipment/CAEN_V1740 [B][CLOSE][/B]
/Equipment/CAEN_V1740/Variables [B][CLOSE][/B]
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26 May 2014, Clemens Sauerzopf, Forum, Running a frontend on Arduino Yun
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Hello,
I'm trying to get a frontend running on an arduino yun single board computer
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26 May 2014, Konstantin Olchanski, Forum, Running a frontend on Arduino Yun
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> I'm trying to get a frontend running on an arduino yun single board computer
> (cpu is Atheros AR9331 and OS is a linux derivate
> http://arduino.cc/en/Main/ArduinoBoardYun )
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27 May 2014, Clemens Sauerzopf, Forum, Running a frontend on Arduino Yun
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Ok, I'm currently trying to get things running, setting up a crosscompiler toolchain for the Arduino Yun is fairly
easy, just follow the tutorial on the OpenWrt webpage.
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27 May 2014, Konstantin Olchanski, Forum, Running a frontend on Arduino Yun
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> Ok, I'm currently trying to get things running, setting up a crosscompiler toolchain for the Arduino Yun is fairly
> easy, just follow the tutorial on the OpenWrt webpage.
>
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28 May 2014, Clemens Sauerzopf, Forum, Running a frontend on Arduino Yun
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Thank you very much for your input, it finally works. I succeeded in crosscompiling the frontend and running it on the ArduinoYun. The 64 MB RAM is more
than
enough to run the mserver and a frontend and connect to a remote midas server over ethernet or wifi.
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24 Oct 2014, Clemens Sauerzopf, Forum, Running a frontend on Arduino Yun
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Hello,
I'm currently trying to create a midas bank for basic temperature reading from the Arduino Yun, but when creating a bank the frontend crashed with a segfault, |
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24 Oct 2014, Stefan Ritt, Forum, Running a frontend on Arduino Yun
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> Hello,
>
> I'm currently trying to create a midas bank for basic temperature reading from the Arduino Yun, but when creating a bank the frontend crashed with a |
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24 Oct 2014, Konstantin Olchanski, Forum, Running a frontend on Arduino Yun
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> INT read_event(char *pevent, INT off)
> {
> WORD *data;
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02 Nov 2014, Stefan Ritt, Forum, Running a frontend on Arduino Yun
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> With the correct definition, you should get a compile error (type mismatch).
>
> With the wrong current definition, you should have gotten a warning about "use of uninitialized variable 'data'", but some compilers with some settings |
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14 Oct 2014, Konstantin Olchanski, Bug Report, Hostile network scans against MIDAS RPC ports
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At CERN I see a large number of hostile network scans that seem to be injecting HTTP requests into the
MIDAS RPC ports. So far, all these requests seem to be successfully rejected without crashing anything, but
they do clog up midas.log.
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14 Oct 2014, Stefan Ritt, Bug Report, Hostile network scans against MIDAS RPC ports
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Doing this through the ODB seems ok to me. If the ODB cannot be accessed, you can fall back to no protection.
At PSI we fortunately do not have these network scans because PSI uses a institute-wide firewall. So you can connect from outside PSI to inside PSI only |
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16 Oct 2014, Konstantin Olchanski, Bug Report, Hostile network scans against MIDAS RPC ports
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> Doing this through the ODB seems ok to me. If the ODB cannot be accessed, you can fall back to no protection.
>
> At PSI we fortunately do not have these network scans because PSI uses a institute-wide firewall.
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16 Oct 2014, Stefan Ritt, Bug Report, Hostile network scans against MIDAS RPC ports
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> Sometimes we have very small MIDAS installations, i.e. just one machine by itself, and such setups should be secure/secured easily -
> too much work to setup an external firewall box just for one machine and OS-level firewall rules sometimes conflict
> with some OS services (i.e. NIS) (I am still waiting for the "NIS to LDAP migration for dummies" guide).
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