 21 Mar 2025, Jonas A. Krieger, Bug Report, midas equipment "format"
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Hi Konstantin,
In the PSI muSR laboratory, we are running about 140 slow control devices across six instruments using Format FIXED.
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 19 May 2025, Jonas A. Krieger, Suggestion, manalyzer root output file with custom filename including run number
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Hi all,
Would it be possible to extend manalyzer to support custom .root file names that include the run number?
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12 Nov 2025, Jonas A. Krieger, Suggestion, manalyzer root output file with custom filename including run number
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Hi all,
Could you please get back to me about whether something like my earlier suggestion might be considered, or if I should set up some workaround to rename |
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06 May 2026, Jonas A. Krieger, Suggestion, numpy version compatibility
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There seems to be a version dependency with the numpy.bool , e.g. used here
https://bitbucket.org/tmidas/midas/src/c6ef4aff5e7e652df79160141e570bed5f4d6a3b/python/midas/sequencer.py?at=develop#sequencer.py-1714 .
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03 Jan 2006, John O'Donnell, Info, How do I do custom event building?
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At DANCE we have a similar issue. We are still doing "software
handshaking" between multiple frontends (15 which read data, and 16th
with direct accessto the trigger logic), and we apply a time stamp
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05 Sep 2011, John McMillan, Forum, khyt1331 under scientific linux 5.5?
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Hello,
I'm trying to build khyt1331 under scientific linux 5.5, kernel
2.6.18-238.9.1el5. Has anyone succeeded with this. So far, I've
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09 Jul 2004, John M O'Donnell, , Introduction of environment variable MIDASSYS
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For a long time the "de facto" standard was to spread a package around in many
directories under /usr/local. This proved to be a bad idea, as removing the
package
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21 Jan 2005, John M O'Donnell, Bug Report, Persistency problem with h1_book() & co
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> The current h1_book() macros (and the previous example analyzer code) have an
> odd persistency problem: for example, the user wants to change some histogram
> limits, edits the h1_book() calls, rebuilds and restarts the analyzer, starts a
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25 Jan 2005, John M O'Donnell, Bug Report, Persistency problem with h1_book() & co
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So now that cvs is reachable again I have confirmed that
the code segment
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25 Jan 2005, John M O'Donnell, Suggestion, HOWTO create ROOT objects in the MIDAS analyzer 
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> (preliminary, untested. I will keep this updated as I get testing feedback)
>
> With recent changes to mana.c, creation of user ROOT objects in the MIDAS
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25 Jan 2005, John M O'Donnell, Bug Report, histograms not saved in replay mode
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is there a reason why histograms are not saved after a replay?
/* save histos if requested */
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23 Feb 2007, John M O'Donnell, Info, RFC- support for writing to removable hard disk storage
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We stopped using tapes at Los Alamos a while ago. The model we use is:
write data with mlogger to a local RAID system. This is NFS mounted read only on teh analysis machines, and
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27 Feb 2007, John M O'Donnell, Forum, event builder scalability
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At Los Alamos, we have 15+1 frontends - the 15 between them read about 2 or 3
TB/hour and reduce it to 1 to 5 GB/hour which is then sent to the mevb on a 17th
computer. The 16th frontend handles deadtime issues and scalers (small data rate).
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07 Jun 2007, John M O'Donnell, Suggestion, RFC- ACLs for midas rpc, mserver, mhttpd access
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I am in favor of tcp_wrappers.
tcp_wrappers is well understood.
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17 Oct 2007, John M O'Donnell, Forum, Adding MIDAS .root-files
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The following program handles regular directories in a file, or folders (ugh).
Most histograms are added bin by bin.
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17 Apr 2019, John M O'Donnell, Info, switch of MIDAS to C++, how much C++?
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some semi-random thoughts:
no templates strictly means you can't use std::string, std::vector etc.
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06 Jul 2026, Joel Sander, Suggestion, mlogger MySQL improved connection
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We recently had an instance where mlogger lost its connection to the database resulting in 317 write errors on mysql_insert and (Good) did report connection
errors to the Midas log but (Bad) didn't attempt to restore the connection. With some help from Gemini, I've drafted a potential solution to reheal.
Our copy uses mysql_query_debug line 1903 in our copy that inserts rows, creates tables, etc: |
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18 Feb 2008, Jimmy Ngai, Bug Report, Analyzer cannot run as Daemon
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Hi All,
I'm testing MIDAS SVN rev-4113 on Scientific Linux 5.1 (i386) and the Analyzer
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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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