 23 Mar 2008, Konstantin Olchanski, Info, History SQL database poll: MySQL, PgSQL, ODBC?
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I would like to hear from potential users on which SQL database would be
preferable for storage of MIDAS history data.
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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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02 Apr 2008, Konstantin Olchanski, Info, add "const" attributes to db_xxx() functions
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Now that we use more and more C++, lack of "const" attribute on most midas functions is causing some
problems. I am now ready to commit changes to midas.h and odb.c that add the const attributes to ODB
access functions db_xxx(), i.e.
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02 Apr 2008, Konstantin Olchanski, Info, add "const" attributes to db_xxx() functions
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Now that we use more and more C++, lack of "const" attribute on most midas functions is causing some
problems. I am now ready to commit changes to midas.h and odb.c that add the const attributes to ODB
access functions db_xxx(), i.e.
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02 Apr 2008, Stefan Ritt, Info, add "const" attributes to db_xxx() functions
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> Now that we use more and more C++, lack of "const" attribute on most midas functions is causing some
> problems. I am now ready to commit changes to midas.h and odb.c that add the const attributes to ODB
> access functions db_xxx(), i.e.
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03 Apr 2008, Konstantin Olchanski, Info, add "const" attributes to db_xxx() functions
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> > I am now ready to commit changes to midas.h and odb.c that add the const attributes to ODB
> > access functions db_xxx(), i.e.
> > INT db_rename_key(HNDLE hDB, HNDLE hKey, char *name)
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30 Apr 2008, Konstantin Olchanski, Info, triumf elog updated to elog-2.7.3-1.i386.rpm
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FYI - in conjunction with replacement of ladd00.triumf.ca, this MIDAS ELOG has been updated to the latest
version 2.7.3-2058. Please report any problems or anomalies. K.O. |
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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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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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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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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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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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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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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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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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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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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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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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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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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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