 02 Jun 2009, Konstantin Olchanski, Bug Report, mlogger duplicate event problem
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> We have seen on several daq systems this problem: we start a run and observe that the number of
> events written by mlogger to the output file is double the number of events actually collected. Upon
> inspection of the output file, we see that every event is written twice. Restarting the run usually fixes
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02 Jun 2009, Konstantin Olchanski, Info, RPC.SHM gyration
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> When using remote midas clients with mserver, you may have noticed the zero-size .RPC.SHM files
> these clients create in the directory where you run them. These files are associated with the semaphore
> created by the midas rpc layer (rpc_call) to synchronize rpc calls between multiple threads. This
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 03 Jun 2009, Konstantin Olchanski, Bug Fix, Fix db_open_record() error return
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The odb hot-link function db_open_record() did not return an error when the system limit for hotlinks is
exceeded and no more hot links could be added (silent failure). This is now fixed.
odb.c svn rev 4500
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05 Jun 2009, Konstantin Olchanski, Bug Report, mhttpd command line experiment specifying
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> I guess you have to do some debugging there. Note that "detached" transitions have
> been implemented recently by Konstantin, so maybe your problem is related to that.
> In this case Konstantin should check what's wrong.
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16 Jun 2009, Konstantin Olchanski, Bug Report, mlogger duplicate event problem
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> > We have seen on several daq systems this problem: we start a run and observe that the number of
> > events written by mlogger to the output file is double the number of events actually collected. Upon
> > inspection of the output file, we see that every event is written twice. Restarting the run usually fixes
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18 Jun 2009, Konstantin Olchanski, Bug Report, mhttpd command line experiment specifying
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> > I guess you have to do some debugging there. Note that "detached" transitions have
> > been implemented recently by Konstantin, so maybe your problem is related to that.
> > In this case Konstantin should check what's wrong.
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24 Jun 2009, Konstantin Olchanski, Bug Report, TR_STARTABORT transition, mlogger duplicate event problem
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> > > We have seen on several daq systems this problem: we start a run and observe that the number of
> > > events written by mlogger to the output file is double the number of events actually collected. Upon
> > > inspection of the output file, we see that every event is written twice. Restarting the run usually fixes
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25 Jun 2009, Konstantin Olchanski, Bug Report, TR_STARTABORT transition, mlogger duplicate event problem
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> > Stefan suggested implementing a new transition, TR_STARTABORT, issued if TR_START fails. mlogger can use it to cleanup open files, etc, similar to TR_STOP.
> >
> > This is now implemented. In mlogger, TR_STARTABORT is similar to TR_STOP, but deletes open output files and does not save end-of-run information into |
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26 Jun 2009, Konstantin Olchanski, Info, mhttpd now uses mtransition
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> > > mhttpd function for starting and stopping runs now uses cm_transition(DETACH) which spawns an
> > > external helper program called mtransition to handle the transition sequencing.
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08 Jul 2009, Konstantin Olchanski, Forum, jorway73a.c, Data taking hangs in the middle of run
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> > Could you give more info on your setup:
> > - CAMAC controller model
> Jorway 73A, we have three in hand and the problem doesn't depend on which controller
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03 Aug 2009, Konstantin Olchanski, Forum, How to distinguish the status and value returned from "mvme_read_value(...)"
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> uint32_t mvme_read_value(MVME_INTERFACE * vme, mvme_addr_t vme_addr);
> Question: How to distinguish the status and value returned?
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10 Aug 2009, Konstantin Olchanski, Info, misc changes from PIENU and T2K
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FYI - committed the last changes from TRIUMF DAQ systems for PIENU and T2K/ND280 FGD and TPC
tests:
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10 Aug 2009, Konstantin Olchanski, Info, misc changes from PIENU and T2K
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> FYI - committed the last changes from TRIUMF DAQ systems for PIENU and T2K/ND280 FGD and TPC
> tests:
> svn rev 4541
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21 Aug 2009, Konstantin Olchanski, Forum, Link error of "mcnaf"
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> If you compile each source into an object, you may encounter a link error ...
Also camac rpc did not work at all last time we tried to use it at triumf, maybe 4 month ago in the Dragon
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27 Sep 2009, Konstantin Olchanski, Forum, deprecated conversion from string constant to ‘char*’
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> I encountered many warning while building MIDAS (svn r4556). Please see the
> attached log file. Most of them are caused by type conversion from string to
> "char*".
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30 Sep 2009, Konstantin Olchanski, Bug Report, Error invoking 'odbedit': db_validate_size
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> $ odbedit -e expcvadc
> odbedit: /opt/DAQ/repos/bot/midas/src/odb.c:651: db_validate_sizes: Assertion
`sizeof(EQUIPMENT_INFO) == 400' failed.
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30 Sep 2009, Konstantin Olchanski, Bug Report, mh2sql does not build, Error invoking 'odbedit': db_validate_size
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> Linking CXX executable bin/mh2sql
> CMakeFiles/mh2sql.dir/utils/mh2sql.cxx.o: In function `main':
> /opt/DAQ/repos/bot/midas/utils/mh2sql.cxx:150: undefined reference to `MakeMidasHistoryODBC()'
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09 Oct 2009, Konstantin Olchanski, Bug Report, change to building and linking libmidas.so, mserver linking fails when using shared library
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> --- Makefile
> < ld -shared -o $@ $^ $(LIBS) -lc
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09 Oct 2009, Konstantin Olchanski, Bug Report, Multiple definition of `SqlODBC::SqlODBC()
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> Linking CXX shared library lib/libmidas.so
/usr/bin/c++ ... -o lib/libmidas.so ... CMakeFiles/midas-shared.dir/src/history_odbc.cxx.o
CMakeFiles/midas-shared.dir/src/history_sql.cxx.o
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11 Oct 2009, Konstantin Olchanski, Bug Report, Building error of history_midas.cxx due to missing declaration
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> The "g++" is whining while compiling history_midas.cxx. Please see the attached log file.
Fixed. svn 4594. K.O. |