 01 Jan 2009, Konstantin Olchanski, Info, odb "hot link" magic explored
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Here are my notes on the MIDAS ODB "hot link" function. Perhaps others can find them useful.
Using db_open_record(key,function), the user can tell MIDAS to call the specified user function when
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 14 Jan 2009, Stefan Ritt, Info, odb "hot link" magic explored
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[quote="KO"]note 1: I do not completely understand the ss_suspend_xxx() stuff. The best I can tell is it creates a number of udp sockets bound to the local
host and at least one udp rpc receive socket ultimately connected to the cm_dispatch_rpc() function.[/quote]
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12 Dec 2008, Jimmy Ngai, Info, Custom page which executes custom function
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Dear All,
How can I add a button at the top of the "Status" webpage which will show a
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14 Dec 2008, Stefan Ritt, Info, Custom page which executes custom function
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> How can I add a button at the top of the "Status" webpage which will show a
> page similar to the "CNAF" one after I click on it? and how can I make a
> custom page similar to "CNAF" which allow me to call some custom funtions? I
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01 Jan 2009, Konstantin Olchanski, Info, Custom page which executes custom function
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> How can I add a button at the top of the "Status" webpage which will show a
> page similar to the "CNAF" one after I click on it? and how can I make a
> custom page similar to "CNAF" which allow me to call some custom funtions? I
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13 Jan 2009, Stefan Ritt, Info, Custom page which executes custom function
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The UDP connection you mention is only used locally for inter-process communication. When I implemented that, I
made extensive tests and found that there is never a packet being dropped. This happens for UDP only if the packet
goes over a physical network. Maybe this is different in modern Linux versions, so one should double check this
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17 Dec 2008, Renee Poutissou, Bug Report, Overflow on "cm_msg" command generates segfault
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The following error has been reported to me by T2K colleagues:
When using "odbedit -c "msg my_message", the following behavior
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22 Dec 2008, Stefan Ritt, Bug Report, Overflow on "cm_msg" command generates segfault
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> The following error has been reported to me by T2K colleagues:
>
> When using "odbedit -c "msg my_message", the following behavior
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21 Dec 2008, Konstantin Olchanski, Bug Fix, mhttpd minor bug fixes and improvements
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Committed minor bug fixes and improvements to mhttpd:
1) when generating history plots, use type "double" instead of "float" because "float" does not have enough
significant digits to plot values of large integer numbers. For example, serial numbers of T2K FGD FEB
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27 Nov 2008, Konstantin Olchanski, Bug Fix, Fix ss_file_size() on 32-bit Linux
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It turns out that on 32-bit Linux, ss_file_size() returns the wrong answer for
files bigger than 2 GB (4GB?). The Linux stat() system call returns an error
(which is ignored) and bogus file size data (returned to the caller).
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01 Dec 2008, Stefan Ritt, Bug Fix, Fix ss_file_size() on 32-bit Linux
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> I also changed ss_file_size(), ss_disk_size() and ss_disk_free() to return -1 if
> the system call returns an error. I also added a test program
> utils/test_ss_file_size.c.
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02 Dec 2008, Stefan Ritt, Bug Fix, Fix ss_file_size() on 32-bit Linux
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> I now fixed this problem by using the stat64() system call for "#ifdef OS_LINUX".
That does not work if _LARGEFILE64_SOURCE is not defined. In that case, the compiler
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02 Dec 2008, Konstantin Olchanski, Bug Fix, Fix ss_file_size() on 32-bit Linux
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> > I now fixed this problem by using the stat64() system call for "#ifdef OS_LINUX".
> That does not work if _LARGEFILE64_SOURCE is not defined.
> #ifdef _LARGEFILE64_SOURE
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02 Dec 2008, Stefan Ritt, Bug Fix, Fix ss_file_size() on 32-bit Linux
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[quote="K.O."]This does not work (observe the typoe in the #ifdef).[/quote]
Sorry for that, I fixed and committed it.
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01 Dec 2008, Randolf Pohl, Bug Report, gcc warning in melog.c for midas 4401
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Hi all,
I have just compiled midas 4401 using SuSE 11.0.
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23 Mar 2008, Konstantin Olchanski, Info, Per-variable history implementation in the mlogger
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The changes to mlogger implementing per-variable history have been committed to
svn. Revision 4145.
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23 Mar 2008, Konstantin Olchanski, Info, Per-variable history implementation in the mlogger
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> The changes to mlogger implementing per-variable history have been committed to
> svn. Revision 4145.
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27 Nov 2008, Konstantin Olchanski, Info, Fixed mlogger crash, was Per-variable history implementation in the mlogger
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> revision 4142+4143 are minor fixes, refactoring (switch the code to use helper
> functions) and implementation of history for structured banks
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25 Mar 2008, Stefan Ritt, Info, Per-variable history implementation in the mlogger
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Before approving the code, two conditions have to be fulfilled:
1) The code has to work on PSI experiments
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27 Nov 2008, Konstantin Olchanski, Info, lazylogger updated
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lazylogger was updated to improve handling of the list of runs still on disk
(odb /Lazy/xxx/List).
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14 Oct 2004, Konstantin Olchanski, Bug Report, lazylogger complains about zero-size files
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With latest midas, I see this:
Thu Oct 14 19:31:17 2004 [Lazy_Tape] [lazylogger.c:1717:Lazy] lazy_file_exists
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27 Nov 2008, Konstantin Olchanski, Bug Report, lazylogger complains about zero-size files
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I now have a better understanding of this: lazylogger uses ss_file_size() to find
out if a file exists or not. This function used to return 0 (probably) for
non-existant files (there was no check for error status from stat() system call,
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26 Nov 2008, Jimmy Ngai, Info, Send email alert in alarm system
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Dear All,
We have a temperature/humidity sensor in MIDAS now and will add a liquid level
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26 Nov 2008, Stefan Ritt, Info, Send email alert in alarm system
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> We have a temperature/humidity sensor in MIDAS now and will add a liquid level
> sensor to MIDAS soon. We want the operators to get alerted ASAP when the
> laboratory environment or the liquid level reached some critical levels. Can
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20 Nov 2008, Jimmy Ngai, Info, Recommended platform for running MIDAS
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Dear All,
Is there any recommended platforms for running MIDAS? Have anyone encountered
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20 Nov 2008, Stefan Ritt, Info, Recommended platform for running MIDAS
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> Dear All,
>
> Is there any recommended platforms for running MIDAS? Have anyone encountered
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20 Oct 2008, Suzannah Daviel, Bug Report, custom web pages: customscript buttons and start/stop buttons generate errors
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I am using an external Custom web page via a link in the ODB in /Custom, and
Javascript to add customscript button(s) and run start/stop buttons.
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29 Oct 2008, Stefan Ritt, Bug Report, custom web pages: customscript buttons and start/stop buttons generate errors
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To fix this problem, do the following:
- Update to the current SVN revision 4368 of mhttpd.c
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04 Nov 2008, Suannah Daviel, Bug Report, custom web pages: customscript buttons and start/stop buttons generate errors
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Thanks Stefan.
Your fix works nicely with the start/stop buttons not returning to the same or to a
different web page.
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09 Nov 2008, Stefan Ritt, Bug Report, custom web pages: customscript buttons and start/stop buttons generate errors
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> Thanks Stefan.
> Your fix works nicely with the start/stop buttons not returning to the same or to a
> different web page.
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04 Nov 2008, Suzannah Daviel, Suggestion, <odb ... edit=1> buttons and javascript
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When writing custom webpages, it would be nice to be able to write code such as
<odb src="/Equipment/TITAN_ACQ/ppg cycle/trans3/time offset (ms)" edit=1>
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09 Nov 2008, Stefan Ritt, Suggestion, <odb ... edit=1> buttons and javascript
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> When writing custom webpages, it would be nice to be able to write code such as
>
> <odb src="/Equipment/TITAN_ACQ/ppg cycle/trans3/time offset (ms)" edit=1>
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04 Nov 2008, Suannah Daviel, Bug Report, bool values in "/custom/images/my_image.gif/labels/src" seem to lose their format string
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Not sure if this is a bug or a feature:
Writing a boolean label on an image seems to produce rather strange behaviour.
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09 Nov 2008, Stefan Ritt, Bug Report, bool values in "/custom/images/my_image.gif/labels/src" seem to lose their format string
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> Not sure if this is a bug or a feature:
>
> Writing a boolean label on an image seems to produce rather strange behaviour.
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06 Nov 2008, Konstantin Olchanski, Info, midas elog outage
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Around Wednesday Noon, there was a power outage at triumf (loss of ups power in the triumf
computing center) and after rebooting ladd00, https/ssl access stopped working with a complaint
about mismatching server name and ssl certificate name. This configuration used to work, so one of the
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22 Oct 2008, Konstantin Olchanski, Info, mscb timeouts and retries
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A new set of functions was added to mscb.h to adjust mscb timeouts and retries to better match specific
applications:
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28 Oct 2008, Stefan Ritt, Info, mscb timeouts and retries
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> A new set of functions was added to mscb.h to adjust mscb timeouts and retries to better match specific
> applications:
>
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23 Oct 2008, Konstantin Olchanski, Bug Report, strange output from "odbedit cleanup"
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When I run odbedit remotely (odbedit -h ladd09), the "cleanup" command unexpectedly produces the
output of the "sor" command (sure enough, there is a call to db_get_open_records() there), but when I run
it locally, I do not get this output (but db_get_open_records() is still called). Strange. K.O. |
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28 Oct 2008, Stefan Ritt, Bug Report, strange output from "odbedit cleanup"
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> When I run odbedit remotely (odbedit -h ladd09), the "cleanup" command unexpectedly produces the
> output of the "sor" command (sure enough, there is a call to db_get_open_records() there), but when I run
> it locally, I do not get this output (but db_get_open_records() is still called). Strange. K.O.
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23 Oct 2008, Konstantin Olchanski, Bug Report, Inconsistent handling of odb and evet buffer timeouts
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In midas.c there are several places where client last activity time stamps are checked against the
watchdog timeout and the clients are declared dead if they fail to update their activity time stamps.
ODB time stamps and data buffer time stamps appear to be handled in a similar manner.
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28 Oct 2008, Stefan Ritt, Bug Report, Inconsistent handling of odb and evet buffer timeouts
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> In midas.c there are several places where client last activity time stamps are checked against the
> watchdog timeout and the clients are declared dead if they fail to update their activity time stamps.
> ODB time stamps and data buffer time stamps appear to be handled in a similar manner.
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23 Oct 2008, Konstantin Olchanski, Bug Report, bm_wait_for_free_space never sleeps inside the mserver
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When mserver receives events from remote client, writes them into a data buffer and this data buffer
becomes 100% full, we see mserver go into 100% consumption.
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21 Oct 2008, Randolf Pohl, Forum, Mixed CAMAC/VME frontend, SIS3100
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Dear MIDAS-addicts,
I would like to hear your opinion on this:
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22 Oct 2008, Stefan Ritt, Forum, Mixed CAMAC/VME frontend, SIS3100
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> Dear MIDAS-addicts,
>
> I would like to hear your opinion on this:
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