 17 Oct 2008, Konstantin Olchanski, Info, mlogger async transitions, etc
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As we were looking into problems with starting and stopping runs in one of our
daq systems, we found that the mlogger does something differently compared to
mhttpd and odbedit. Starting and stopping runs from mhttpd and odbedit works
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 18 Oct 2008, Stefan Ritt, Info, mlogger async transitions, etc
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> I suspect mlogger uses ASYNC transactions exactly to avoid
> this type of deadlock (mlogger used ASYNC transactions since svn revision 2, the
> beginning of time).
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13 Oct 2008, Konstantin Olchanski, Info, MIDAS drivers for Tundra tsi148 pci-vme bridge
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The latest midas mvmestd.h driver for the Tundra tsi148 pci-vme bridge as used
on GEFANUC VME processors have been commited, revision 4349.
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13 Oct 2008, Stefan Ritt, Info, mhttpd multi-experiment support removed
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Previously, one mhttpd server could sever several experiments at the same time.
This caused however sometimes problems and was hard to maintain. Starting from
SVN revision 4348, I removed the multi-experiment support, which I believe is
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10 Oct 2008, Konstantin Olchanski, Bug Report, mhttpd "messages" broken
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mhttpd "messages" page stopped working after svn revision 4327 because of uninitialized variable
"filename2" in midas.c:cm_message_retrieve(). Attached patch fixes the problem for me.
K.O.
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11 Oct 2008, Stefan Ritt, Bug Report, mhttpd "messages" broken
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> mhttpd "messages" page stopped working after svn revision 4327 because of uninitialized variable
> "filename2" in midas.c:cm_message_retrieve(). Attached patch fixes the problem for me.
> K.O.
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03 Oct 2008, Konstantin Olchanski, Info, Implement non-default mserver tcp port numbers.
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midas revision 4342 implements non-default tcp port numbers for the mserver.
To use, run "mserver -p 7070" and say "setenv MIDAS_SERVER_HOST
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19 Sep 2008, Stefan Ritt, Info, Lazylogger logging changed
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I modified the logging behavior of lazylogger. Originally, it was writing
messages (run copied, removed, ...) both into midas.log and
lazy_log_update.log. Since we have many files, it kind of clutters up the
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18 Sep 2008, Stefan Ritt, Info, Potential problems in multi-threaded slow control front-end
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We had recently some problems at our experiment which I would like to share
with the community. This affects however only experiments which have a slow
control front-end in multi-threaded mode.
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17 Sep 2008, Stefan Ritt, Info, New flag for auto restart
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A new ODB flag has been introduced. When the logger is configured for automatic
stop and restart (/Logger/Auto restart = y), the restart delay was hard-wired
to 20 sec., which might be too long or short for some experiments. Therefore a
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29 Aug 2008, Konstantin Olchanski, Info, history_odbc: store MIDAS history in ODBC/MySQL database
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The code for storing midas history in an odbc sql database has been committed.
Changes:
include/history_odbc.h, src/history_odbc.cxx --- implementation
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28 Aug 2008, Konstantin Olchanski, Info, triumf/t2k midas updates
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Following changes to midas produced from the TRIUMF T2K project have been
committed to svn:
1) cm_shutdown() will now SIGKILL clients that cannot be stopped via normal
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17 Jun 2008, Stefan Ritt, Info, Improvement of custom pages 
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Some improvement of custom pages have been implemented. The idea behind is that
a custom page would contain a large background image containing indicators but
also controls. While indicators (values, bars) are already available, the field
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31 Jul 2008, Stefan Ritt, Info, Improvement of custom pages
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Even more improvements have been implemented into custom pages recently, containing a complete JavaScript library for ODB communication. This JavaScript
library relies on certain new commands built into mhttpd, and is therefore hardcoded into mhttpd. It can be seen by entering
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16 Jul 2008, Stefan Ritt, Info, Implementation of db_set_link_data() and db_set_link_data_index()
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The current implementation of ODB links has the problem that once a link is
created, it cannot be changed any more through odbedit. This is because each
"set" command works on the destination of the link instead of the link. The same
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04 Jul 2008, Stefan Ritt, Info, Improved alarm conditions implemented
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I implemented improved alarm conditions in the alarm system. Now one can write
conditions like
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01 Jul 2008, Jimmy Ngai, Forum, CAEN V792N QDC with MIDAS
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Dear All,
I have a problem when testing the V792N 16 CH QDC with the V1718 VME-USB
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11 Jun 2008, Andreas Suter, Suggestion, mlogger is flooding the message queue
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The current versions of mlogger SVN 4215 is flooding our message system with
stuff like
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11 Jun 2008, Konstantin Olchanski, Suggestion, mlogger is flooding the message queue
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> The current versions of mlogger SVN 4215 is flooding our message system with
> stuff like
>
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16 Jun 2008, Konstantin Olchanski, Suggestion, mlogger is flooding the message queue
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> The current versions of mlogger SVN 4215 is flooding our message system with
> stuff like
>
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16 Jun 2008, Stefan Ritt, Suggestion, mlogger is flooding the message queue
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> > The current versions of mlogger SVN 4215 is flooding our message system with
> > stuff like
> >
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16 Jun 2008, Stefan Ritt, Bug Fix, "Missing event" problem fixed in front-end framework
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Since the very beginning midas had the problem that the last event of a run was
sometimes missing in the data. While for most experiments this is not an issue,
it starts to hurt on experiments using event building (front-end 1 and front-end
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05 Jun 2008, Jimmy Ngai, Forum, CAEN VME-USE Bridge with MIDAS
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Hi All,
Is there any example code for using MIDAS with the CAEN VME-USB Bridge V1718?
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07 Jun 2008, Jimmy Ngai, Forum, CAEN VME-USE Bridge with MIDAS
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Hi All,
I am testing the libraries provided by CAEN with the sample softwares in the
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20 May 2008, Konstantin Olchanski, Bug Report, pending problems and fixes from triumf
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Here is the list of known problems I am aware of and of fixes not yet committed
to midas svn:
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28 May 2008, Konstantin Olchanski, Bug Report, pending problems and fixes from triumf
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> Here is the list of known problems I am aware of and of fixes not yet committed
> to midas svn:
>
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29 May 2008, Konstantin Olchanski, Bug Report, pending problems and fixes from triumf
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> > Here is the list of known problems I am aware of and of fixes not yet committed to midas svn:
> > 1) added variable /equiment/foo/common/PerVariableHistory
>
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07 Jan 2008, Stefan Ritt, Info, Roll-back for history sytem added
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The midas history system always had the problem that the database can get
corrupted if the disk gets full where the history records (*.hst & *.idx) are
stored. This can happen if a history event can only be written partially on the
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13 Feb 2008, Konstantin Olchanski, Info, Roll-back for history sytem added
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> The midas history system always had the problem that the database can get
> corrupted if the disk gets full where the history records (*.hst & *.idx) are
> stored.
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13 Feb 2008, Stefan Ritt, Info, Roll-back for history sytem added
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> But to make things more interesting we had another history outage this week - we
> happen to write history files to an NFS server (not recommened! do not do this!) and
> when the NFS server had a glitch, history files got corrupted - because during the
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28 May 2008, Konstantin Olchanski, Info, Roll-back for history sytem added
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> > But to make things more interesting we had another history outage this week...
> > Anyhow, I now have a patch to allow hs_read() to "skip the bad spots" in history files.
>
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20 May 2008, Konstantin Olchanski, Bug Report, pending problems and fixes from triumf
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Here is the list of known problems I am aware of and of fixes not yet committed
to midas svn: |