Dear experts,
I am familiar with the issue of not being able to hadd files to make an output tree larger than 100Gb, but I just attempted to do so by accident and saw an error message that gave me hope there is a fix for this - pasted below. I wonder if this is in the pipeline, or should I give up these girlish dreams?
Thanks, Lily
Fill: Switching to new file: ./wjets_1.root
Fatal in <TFileMerger::RecursiveRemove>: Output file of the TFile Merger (targeting ./wjets.root) has been deleted (likely due to a TTree larger than 100Gb)
aborting
#0 0x00000037718ac68e in __libc_waitpid (pid=<value optimized out>, stat_loc=0x7fffffff82ac, options=0) at ../sysdeps/unix/sysv/linux/waitpid.c:32
#1 0x000000377183e609 in do_system (line=<value optimized out>) at ../sysdeps/posix/system.c:149
#2 0x00002aaaacedbc5a in TUnixSystem::StackTrace() () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libCore.so
#3 0x00002aaaace4bffa in DefaultErrorHandler(int, bool, char const*, char const*) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libCore.so
#4 0x00002aaaace4ba72 in ErrorHandler () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libCore.so
#5 0x00002aaaace31754 in TObject::Fatal(char const*, char const*, ...) const () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libCore.so
#6 0x00002aaaace57be3 in THashList::RecursiveRemove(TObject*) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libCore.so
#7 0x00002aaaace30e8a in TObject::~TObject() () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libCore.so
#8 0x00002aaaac4307f9 in TFile::~TFile () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libRIO.so
#9 0x00002aaaab08ab8f in TTree::ChangeFile(TFile*) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libTree.so
#10 0x00002aaaab091502 in TTree::CopyEntries(TTree*, long long, char const*) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libTree.so
#11 0x00002aaaab090b4d in TTree::Merge(TCollection*, TFileMergeInfo*) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libTree.so
#12 0x00002aaaac45d6f5 in TFileMerger::MergeRecursive(TDirectory*, TList*, int) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libRIO.so
#13 0x00002aaaac45c47a in TFileMerger::PartialMerge(int) () from /cvmfs/atlas.cern.ch/repo/ATLASLocalRootBase/x86_64/root/6.04.14-x86_64-slc6-gcc49-opt/lib/libRIO.so
#14 0x00000000004020b5 in main ()
Aborted