Using KanAccess
The KanAccess utility provides the mapping from logical
file names (LFNs) to physical file names (PFNs) for CM2 data. The
KanCollUtil utility can
be used to determine the LFNs (and PFNs) for a given
collection.
This utility is not generally needed by the average user. It is used
instead behind the scenes by some other tools and by some production scripts.
It is documented here, however, for completeness.
You should find KanAccess as part of the release. For
example if your test release is based on 14.3.1
myrel/workdir> which KanAccess
/afs/slac.stanford.edu/g/babar/dist/releases/14.3.1/bin/Linux24RH72_i386_gcc2953/KanAccess
myrel/workdir>
otherwise, you can make KanAccess by checking out the
KanUtils package and linking it.
Usage
KanAccess lfn1 ..... lfnN
Available Options for KanAccess:
Default
-h
Usage options
Default behavior
KanAccess expects no options, simply a list of LFNs. For example, after
using KanCollUtil to determine that the LFN
root://kanolb-a:1094///store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00.01.root
is one of the LFNs for the collection
/store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00.
Then the corresponding PFN can be determined simply:
myrel/workdir> KanCollUtil -L /store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00
/store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00 (286908 events)
LFN 000 /store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00.01.root (owned)
LFN 001 /store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00.02E.root (owned)
myrel/workdir> KanAccess /store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00.01.root
root://kanolb-a:1094///store/PR/R12/AllEvents/0002/14/12.3.4e/AllEvents_00021439_12.3.4eV00_C14.2.0bV00.01.root
Option: -h
There is also command line help available to see the most up to date set
of options.
myrel/workdir> KanAccess -h
Adding KanAccess to your test release
From your test release, check out the KanUtils package. For
example, if your test release is based on the 14.3.1
release:
myrel> addpkg KanUtils
Offline Release 14.3.1 uses KanUtils version V00-03-09, will check that out
cvs checkout: Updating KanUtils
U KanUtils/GNUmakefile
U KanUtils/KanAccess.cc
U KanUtils/KanBbrRoot.cc
U KanUtils/KanBbrRoot.hh
U KanUtils/KanBkgrConverter.tcl
U KanUtils/KanCollUtil.cc
U KanUtils/KanCopyUtil.cc
U KanUtils/KanFileUtil.cc
U KanUtils/KanFrameApp.cc
U KanUtils/KanFromBdbConverter.tcl
U KanUtils/KanMergeCollections.tcl
U KanUtils/KanRepairFromBdb.tcl
U KanUtils/KanUtils.cc
U KanUtils/KanUtils.hh
U KanUtils/KanUtilsProcs.tcl
U KanUtils/README
U KanUtils/bin_KanAccess.mk
U KanUtils/bin_KanCollUtil.mk
U KanUtils/bin_KanCopyUtil.mk
U KanUtils/bin_KanFileUtil.mk
U KanUtils/bin_KanFrameApp.mk
U KanUtils/bin_KanUtils.mk
U KanUtils/binlist
U KanUtils/link_KanUtils.mk
U KanUtils/mergeExample.tcl
U KanUtils/mergePRExample.tcl
GNU Make version 3.79.1,
Build OPTIONS = Linux24RH72_i386_gcc2953-Debug-native-Objy-Optimize-Fastbuild-Ldlink2-SkipSlaclog-Static-Lstatic
Linux noric11 2.4.20-28slac2.7smp #1 SMP Wed Jan 21 23:01:23 PST 2004 i686 unknown [uname -a]
-> installdirs:
myrel>
Then build the executable
myrel> gmake KanUtils.KanAccess
GNU Make version 3.79.1,
Build OPTIONS = Linux24RH72_i386_gcc2953-Debug-native-Objy-Optimize-Fastbuild-Ldlink2-SkipSlaclog-Static-Lstatic
Linux noric11 2.4.20-28slac2.7smp #1 SMP Wed Jan 21 23:01:23 PST 2004 i686 unknown [uname -a]
-> KanUtils.KanAccess: (Sat Feb 7 10:13:35 PST 2004)
Making KanUtils.d [cc1]
Making KanBbrRoot.d [cc1]
Making KanFrameApp.d [cc3]
Making KanAccess.d [cc3]
Making KanCopyUtil.d [cc3]
Making KanCollUtil.d [cc3]
Making KanFileUtil.d [cc3]
Compiling KanBbrRoot.cc [libKanUtils.a] [cc-1]
Compiling KanUtils.cc [libKanUtils.a] [cc-1]
Compiling KanAccess.cc [KanAccess.o] [cc-3]
Linking KanAccess in KanUtils [link-1]
/afs/.slac.stanford.edu/package/gcc/i386_linux22/gcc-2.95.3/lib/gcc-lib/i686-pc-linux-gnu/2.95.3/libg2c.a(open.o): In function `f_open':
/u/sf/bartelt/RWPackage/gcc/build/gcc-2.95.3/i686-pc-linux-gnu/libf2c/libI77/../../../../../src/gcc-2.95.3/libf2c/libI77/open.c:213: the use of `tempnam' is dangerous, better use `mkstemp'
myrel>
then you should see it under your bin directory
myrel/workdir> which KanAccess
./bin/Linux24RH72_i386_gcc2953/KanAccess
myrel/workdir>
