 12 Apr 2022, Konstantin Olchanski, Info, ODB JSON support
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> > > > odbedit can now save ODB in JSON-formatted files.
> > encode NaN, Inf and -Inf as JSON string values "NaN", "Infinity" and "-Infinity". (Corresponding to the respective Javascript values).
> http://docs.oasis-open.org/odata/odata-json-format/v4.0/os/odata-json-format-v4.0-os.html
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13 Apr 2022, Konstantin Olchanski, Info, ODB JSON support
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> > Per xkcd, there is a new json standard "json5". In addition to other things, numeric
> > values NaN, +Infinity and -Infinity are encoded as literals NaN, Infinity and -Infinity (without quotes):
> > https://spec.json5.org/#numbers
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 24 Apr 2022, Konstantin Olchanski, Bug Fix, mserver buffer overrun and crash
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There is a memory allocation bug in the mserver.
ALIGN8() was missing when receiving events from the event socket and data buffer
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30 Apr 2022, Konstantin Olchanski, Forum, S3 Object Storage
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> We are storing raw MIDAS files to S3 Object Storage, but MIDAS file are not
> optimised for readout from such kind of storage. There is any work around on
> evolution of midas raw output or, beyond simulated posix fs, to develop midas
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30 Apr 2022, Konstantin Olchanski, Info, added web pages for "show odb clients" and "show open records"
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for a long time, midas web pages have been missing the equivalent of odbedit
"scl" and "sor" to display current odb clients and current odb open records.
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01 May 2022, Konstantin Olchanski, Info, added web page for "mdump"
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added JSON RPC for bm_receive_event() and added a web page for "mdump".
the event dump is a hex dump for now.
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01 May 2022, Konstantin Olchanski, Info, added web page for "mdump"
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> added JSON RPC for bm_receive_event()
there is a number of problems with implementing bm_receive_event() as a RPC:
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01 May 2022, Konstantin Olchanski, Info, added web page for "mdump"
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> added a web page for "mdump".
missing functions:
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04 May 2022, Konstantin Olchanski, Bug Fix, mysql history update
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the code for writing midas history to mysql has been updated to work against
MYSQL 8.0.23 (CERN ALPHA-2):
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08 May 2022, Konstantin Olchanski, Info, RO_STOPPED with triggered events
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> If events are sent when a run is stopped, this leads to many unexpected results
I think we need to understand what these unexpected results are.
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08 May 2022, Konstantin Olchanski, Info, RO_STOPPED with triggered events
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> some old front-end are not running any more since they do use RO_ALWAYS together with
triggered events.
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13 May 2022, Konstantin Olchanski, Info, analysis of corner cases in event buffer write cache
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introduction:
to remember, bm_send_event() writes an event to the write cache, bm_flush_cache()
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16 May 2022, Konstantin Olchanski, Info, RO_STOPPED with triggered events
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> > some old front-end are not running any more since they do use RO_ALWAYS together with
> triggered events.
>
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16 May 2022, Konstantin Olchanski, Info, analysis of corner cases in event buffer write cache
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> for correct operation of bm_send_event() under all conditions we need to ...
to continue computation from last message:
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16 May 2022, Konstantin Olchanski, Info, analysis of corner cases in event buffer write cache
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> > for correct operation of bm_send_event() under all conditions we need to ...
> to continue computation from last message:
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16 May 2022, Konstantin Olchanski, Bug Fix, mserver buffer overrun and crash
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> There is a memory allocation bug in the mserver.
Fix for this problem introduced a new problem, an infinite loop in bm_flush_cache,
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17 May 2022, Konstantin Olchanski, Info, MIDAS switched to C++
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> Hi, I have three naive questions about this:
all good questions, ask more of them.
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18 Jul 2022, Konstantin Olchanski, Bug Report, RPC timeout for manalyzer over network
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> In ALPHA, I get RPC timeouts running a (reasonably heavy) analyzer on a remote machine (connected directly via a ~30 meter 10Gbe Ethernet cable) after
~5 minutes of running. If I run the analyser locally, I dont not see a timeout...
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18 Jul 2022, Konstantin Olchanski, Release, midas-2022-05
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There is a release branch for midas-2022-05 and corresponding git tag midas-2022-
05-b. This branch is known to be stable and is working well for the ALPHA
experiment at CERN. Latest update to this branch fixes two problems in the
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08 Aug 2022, Konstantin Olchanski, Info, midas on ubuntu LTS 22.04
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reporting that as of commit 78f707c0686d22f8329c7a1f1c46d7dccf35ceff, midas builds
without errors or warnings on Ubuntu LTS 22.04, 20.04, CentOS-7 and MacOS 12.4.
(except for some warnings from mscb and msc). K.O. |