 28 Mar 2024, Grzegorz Nieradka, Bug Report, Midas (manalyzer) + ROOT 6.31/01 - compilation error
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I found solution for my trouble. With MIDAS and ROOT everything is OK,
the trobule was with my Ubuntu enviroment.
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02 Apr 2024, Konstantin Olchanski, Bug Report, Midas (manalyzer) + ROOT 6.31/01 - compilation error
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> I found solution for my trouble. With MIDAS and ROOT everything is OK,
> the trobule was with my Ubuntu enviroment.
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 08 Aug 2016, Konstantin Olchanski, Release, Merged - new pure html web pages: programs and alarms.
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The code for the new pure html and javascript web pages was merged into main midas.
In this release, the "programs" and "alarms" pages are implemented as html files, see
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12 Aug 2015, Konstantin Olchanski, Info, Merged - improved midas network security
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> New git branch "feature/rpcsecurity" implements these security features:
Branch was merged into main midas with a few minor changes:
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14 Aug 2015, Stefan Ritt, Info, Merged - improved midas network security
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I tested the new scheme and am quite happy with. Just a minor thing. When I change the ACL, I get messages from all attached programs, like:
[local:Online:S]RPC hosts>set "Allowed hosts[1]" "host.psi.ch"
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14 Aug 2015, Konstantin Olchanski, Info, Merged - improved midas network security
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> [local:Online:S]RPC hosts>set "Allowed hosts[1]" "host.psi.ch"
> [ODBEdit,INFO] Reloading RPC hosts access control list via hotlink callback
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06 Sep 2009, Exaos Lee, Bug Fix, Maybe a fix 
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Changing "SQLINTEGER" to "SQLLEN" maybe let the compiling pass. See the attached diff.
But I failed in another error. It was the problem in CMakeLists.txt. (FIXED) |
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31 Mar 2022, Stefan Ritt, Suggestion, Maximum ODB size
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Anybody some idea what the maximum ODB size can be? In the old days, the linux
kernels had a severe limit on shared memory of usually 8MB, but in the age of
64GB RAM being a standard, we should be able to grow bigger. Tried
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04 Apr 2022, Konstantin Olchanski, Suggestion, Maximum ODB size
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> Anybody some idea what the maximum ODB size can be?
It turns out ODB size limit is hardwired on db_open_database() at 100 Mbytes.
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27 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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Hi all,
> I agree, I think we can safely bump the limit from 100 Mbytes to 1 Gbyte, maybe 1.5 or
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27 Apr 2023, Konstantin Olchanski, Suggestion, Maximum ODB size
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> > I agree, I think we can safely bump the limit from 100 Mbytes to 1 Gbyte, maybe 1.5 or
> > 1.99 Gbytes. Above that we run into 32-bit/31-bit cleanliness problems.
>
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27 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> This is change is wrong. As I wrote, ODB is not 64-bit clean and it is not 32-bit clean. We think is is 31-bit clean, so maximum size would be slightly
less than 2 Gbytes.
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27 Apr 2023, Konstantin Olchanski, Suggestion, Maximum ODB size
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> You said the writing into .odb is buggy. Do you mean it’s buggy in general or only in this specific case?
> We save the ODB most of the time in the .odb format.
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27 Apr 2023, Konstantin Olchanski, Suggestion, Maximum ODB size
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my vote is to bump the ODB size limit to 1999*1000*1000 (not quite 2GB). but this needs to be tested. especially save and restore from ODB, XML and JSON
files, including how long it takes to save and load a 1.9GB ODB. K.O. |
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27 Apr 2023, Stefan Ritt, Suggestion, Maximum ODB size
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> Congratulations. created != "it works".
Two other tings to consider:
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28 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> my vote is to bump the ODB size limit to 1999*1000*1000 (not quite 2GB). but this needs to be tested. especially save and restore from ODB, XML and JSON
files, including how long it takes to save and load a 1.9GB ODB. K.O.
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28 Apr 2023, Stefan Ritt, Suggestion, Maximum ODB size
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> Is this maybe related to what Stefan said about the run start - so that odbedit needs some time to load the bigger ODB?
At the run start mlogger writes the ODB to the .mid file. This needs conversion (binary ODB -> XML ASCII) which can take time.
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28 Apr 2023, Marius Koeppel, Suggestion, Maximum ODB size
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> At the run start mlogger writes the ODB to the .mid file. This needs conversion (binary ODB -> XML ASCII) which can take time.
> This does NOT depend on the ODB size, but on the ODB *content*. Every key in the ODB takes time to convert. So if your ODB as 1.5 GB
> but only a few keys, this is still fast. Only if you have 200 million keys int he ODB, then mlogger takes lots of time to convert
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28 Apr 2023, Konstantin Olchanski, Suggestion, Maximum ODB size
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> > Congratulations. created != "it works".
>
> Two other tings to consider:
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28 Apr 2023, Konstantin Olchanski, Suggestion, Maximum ODB size
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> > Is this maybe related to what Stefan said about the run start - so that odbedit needs some time to load the bigger ODB?
>
> At the run start mlogger writes the ODB to the .mid file. This needs conversion (binary ODB -> XML ASCII) which can take time.
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