 23 Jul 2026, Konstantin Olchanski, Bug Fix, repair of corrupted ODB free lists
|
> > I finished debugging the code I wrote to check and repair the ODB key area and data area free lists, this
> > should fix the famous "ODB is full" error.
>
|
 17 Jun 2019, Konstantin Olchanski, Bug Fix, removed modbset() from mhttpd.js
|
The modbset() function in mhttpd.js is not used anywhere in midas and it misleads midas users into thinking that it works like the old ODBSet() function,
when
it can not and it does not.
|
|
17 Jun 2019, Stefan Ritt, Bug Fix, removed modbset() from mhttpd.js
|
I disagree. The modbset() function is used in many custom pages at PSI because people are tired of typing mjsonrpc_db_paste([path],[value]) vs. modbset(path,
value). We need to keep
modbset() which is well documented at
|
|
17 Jun 2019, Konstantin Olchanski, Bug Fix, removed modbset() from mhttpd.js
|
If it's a function intended for general use, it should be in midas.js.
The documentation for such a function should be made very clear that:
|
|
18 Jun 2019, Stefan Ritt, Bug Fix, removed modbset() from mhttpd.js
|
A ladder of promise event handlers is certainly one possibility to enforce the order of ODB writes, but I wonder if we could so something simpler:
- modbset creates an object remembering the status of the RPC request. Initially, this object receives the status "open request"
|
|
18 Jun 2019, Konstantin Olchanski, Bug Fix, removed modbset() from mhttpd.js
|
> A ladder of promise event handlers is certainly one possibility to enforce the order of ODB writes, but I wonder if we could so something simpler:
>
> - modbset creates an object remembering the status of the RPC request. Initially, this object receives the status "open request"
|
|
18 Jun 2019, Stefan Ritt, Bug Fix, removed modbset() from mhttpd.js
|
Just to make this point clear: The "write-to-odb-read-via-hotlink" was never meant to guarantee the receiving side to see each change. If changes happen
too often, updates might get lost. If one relies on the
sequence of updates, one should use direct RPC calls to the frontend or use a midas buffer and encode updates in events.
|
|
18 Jun 2019, Konstantin Olchanski, Bug Fix, removed modbset() from mhttpd.js
|
> Just to make this point clear: The "write-to-odb-read-via-hotlink" was never meant to guarantee the receiving side to see each change. If changes happen
too often, updates might get lost. If one relies on the
> sequence of updates, one should use direct RPC calls to the frontend or use a midas buffer and encode updates in events.
|
|
18 May 2006, Konstantin Olchanski, Bug Fix, removed a few "//" comments to fix compilation on VxWorks
|
Our VxWorks C compiler (gcc-2.8-something) does not like the "//" comments. Luckily, on VxWorks, we
only compile a small subset of midas, so there is no point in banning all "//" comments. But I did have to
convert a couple of them to /* commens */ in odb.c to make it compile. Changes to odb.c commited. K.O. |
|
10 Jan 2019, Konstantin Olchanski, Info, removal of cm_watchdog()
|
cm_watchdog() has been removed from the latest midas sources. The watchdog functions performed by cm_watchdog() were
moved to cm_yield() - those are - maintaining odb and event buffer "last active" timestamps and checking for and removing of
timed-out clients.
|
|
21 Jan 2019, Konstantin Olchanski, Info, removal of cm_watchdog()
|
> cm_watchdog() has been removed from the latest midas sources
> Removal of cm_watchdog() solves many problems in the midas code base:
|
|
24 Jan 2019, Konstantin Olchanski, Info, removal of cm_watchdog()
|
> > cm_watchdog() has been removed from the latest midas sources
> > Removal of cm_watchdog() solves many problems in the midas code base:
> Removal of cm_watchdog() creates new problems:
|
|
22 Sep 2025, Konstantin Olchanski, Info, removal of ROOT support in mlogger
|
Historically, building MIDAS with ROOT caused us many problems - build failures because of c++ version
mismatch, CFLAGS mismatch; run-time failures because of ROOT library mismatches; etc, etc.
|
|
06 Nov 2025, Konstantin Olchanski, Info, removal of ROOT support in mlogger
|
> we should finally bite the bullet and remove ROOT support from MIDAS ...
there were no objections to removing ROOT support from mlogger.
|
|
20 Nov 2025, Konstantin Olchanski, Info, removal of ROOT support in mlogger
|
> > we should finally bite the bullet and remove ROOT support from MIDAS ...
as discussed, HAVE_ROOT and OBSOLETE were removed from mlogger. rmana and ROOT support in manalyzed remain,
|
|
05 Feb 2016, Thomas Lindner, Suggestion, reducing sleep time in mhttpd main loop (for sequencer)
|
There were some complaints that the MIDAS sequencer was slow. Specifically, the
complaint was that even lines in the sequence that didn't do any (like COMMENT
commands) tooks > 100ms to execute. These slow sequencer steps could be a
|
|
05 Feb 2016, Thomas Lindner, Suggestion, reducing sleep time in mhttpd main loop (for sequencer)
|
> There were some complaints that the MIDAS sequencer was slow. Specifically, the
> complaint was that even lines in the sequence that didn't do any (like COMMENT
> commands) tooks > 100ms to execute. These slow sequencer steps could be a
|
|
06 Feb 2016, Stefan Ritt, Suggestion, reducing sleep time in mhttpd main loop (for sequencer)
|
> There were some complaints that the MIDAS sequencer was slow. Specifically, the
> complaint was that even lines in the sequence that didn't do any (like COMMENT
> commands) tooks > 100ms to execute. These slow sequencer steps could be a
|
|
15 Feb 2016, Thomas Lindner, Suggestion, reducing sleep time in mhttpd main loop (for sequencer)
|
> > I checked how much extra CPU was used if the sleep was reduced from 100ms to
> > 20ms. I found that when a sequence was not running the CPU increased from 0% to
|
|
15 Feb 2016, Stefan Ritt, Suggestion, reducing sleep time in mhttpd main loop (for sequencer)
|
> Hmm, yeah, I'm not sure about how to handle reducing the wait time to zero after ODB set commands.
>
> But it does seem like it would be straight-forward to increase the sleep time for waits; I'll look into
|