 05 Dec 2025, Konstantin Olchanski, Info, MIDAS RPC add support for std::string and std::vector<char>
|
> > This is moving slowly. I now have RPC caller side support for std::string and
> > std::vector<char>. RPC server side is next. K.O.
> The RPC_CXX code is now merged into MIDAS branch feature/rpc_call_cxx.
|
 05 Dec 2025, Konstantin Olchanski, Bug Fix, update of JRPC and BRPC
|
With the merge of RPC_CXX code, MIDAS RPC can now return data of arbitrary large size and I am
proceeding to update the corresponding mjsonrpc interface.
|
|
05 Dec 2025, Konstantin Olchanski, Info, address and thread sanitizers
|
I added cmake support for the thread sanitizer (address sanitizer was already
there). Use:
|
|
07 Dec 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
|
> #include "manalyzer.h"
> #include "midasio.h"
> +#include "odbxx.h"
|
|
08 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
|
I was testing odbxx with manalyzer, decided to print an odb value in every event,
and it worked fine in online mode, but bombed out when running from a data file
(JSON ODB dump). The following code has a memory leak. No idea if XML ODB dump
|
|
08 Dec 2025, Konstantin Olchanski, Suggestion, Get manalyzer to configure midas::odb when running offline
|
> > #include "manalyzer.h"
> > #include "midasio.h"
> > +#include "odbxx.h"
|
|
08 Dec 2025, Konstantin Olchanski, Suggestion, manalyzer root output file with custom filename including run number
|
I updated the root helper constructor to give the user more control over ROOT output file names.
You can now change it to anything you want in the module run constructor, see manalyzer_example_esoteric.cxx
|
|
09 Dec 2025, Konstantin Olchanski, Bug Report, manalyzer fails to compile on some systems because of missing #include <cmath>
|
> /code/midas/manalyzer/manalyzer.cxx:799:27: error: ‘pow’ was not declared in this scope
> 799 | bins[i] = TimeRange*pow(1.1,i)/pow(1.1,Nbins);
|
|
09 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
|
> Thanks for reporting this. It was caused by a
>
> MJsonNode* node = MJsonNode::Parse(str.c_str());
|
|
11 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
|
> > BTW, it looks like we are parsing the whole JSON ODB dump (200k+) on every odbxx access. Can you parse it just once?
> You are right. I changed the code so that the dump is only parsed once. Please give it a try.
|
|
11 Dec 2025, Konstantin Olchanski, Bug Report, manalyzer fails to compile on some systems because of missing #include <cmath>
|
> TFile.h -> TDirectoryFile.h -> TDirectory.h -> TNamed.h -> TString.h -> TMathBase.h -> cmath -> math.h
reading ROOT release notes, 6.38 removed TMathBase.h from TString.h, with a warning "This change may cause errors during compilation of
|
|
12 Dec 2025, Konstantin Olchanski, Bug Report, odbxx memory leak with JSON ODB dump
|
> > Confirmed fixed, thanks! There are 2 small changes I made in odbxx.h, please pull.
> There was one missing enable_jsroot in manalyzer, please pull yourself.
|
|
05 Feb 2026, Konstantin Olchanski, Bug Report, omnibus bugs from running DarkLight
|
We finished running the DarkLight experiment and I am reporting accumulated bugs that we have run into.
1) history plots on 12 hrs, 24 hrs tend to hang with "page not responsive". most plots have 16-20 variables,
|
|
16 Apr 2026, Konstantin Olchanski, Forum, Migrate Legacy code to current Midas version
|
> I am migrating the full CRIPT muon tomography detector from MIDAS (SVN Rev.
> 5238, circa 2012) to a more modern release.
> The current system runs on Scientific Linux 6 and very old hardware.
|
|
16 Apr 2026, Konstantin Olchanski, Suggestion, mhttpd user permissions
|
We had our periodic discussion on MIDAS web page user permissions. (I cannot
find the link to the previous discussions, ouch!)
|
|
24 Apr 2026, Konstantin Olchanski, Bug Report, increasing the max number of hot links in ODB
|
> when I attempted to increase the max number of hotlinks in ODB , defined as
> #define MAX_OPEN_RECORDS 256 /**< number of open DB records */
> assert(sizeof(DATABASE_CLIENT) == 2112);
|
|
27 Apr 2026, Konstantin Olchanski, Bug Report, increasing the max number of hot links in ODB
|
> Indeed, updating MIDAS clients on each and every RPI etc in a running experiment may be a real challenge.
actually, only local clients must be rebuilt, remote clients connecting to the mserver do not care about ODB
|
|
27 Apr 2026, Konstantin Olchanski, Bug Report, increasing the max number of hot links in ODB
|
> I wonder why one needs more than 256 hotlinks at all.
I confirm that ALPHA is running with MAX_OPEN_RECORDS changed from 256 to 2048,
|
|
14 Feb 2020, Konrad Briggl, Forum, Writting Midas Events via FPGAs
|
Hello Stefan,
is there a difference for the later data processing (after writing the ring buffer blocks)
if we write single events or multiple in one rb_get_wp - memcopy - rb_increment_wp cycle?
|
|
02 Mar 2007, Kevin Lynch, Forum, event builder scalability
|
> Hi there:
> I have a question if there's anybody out there running MIDAS with event builder
> that assembles events from more that just a few front ends (say on the order of
|