In writing a large TTree to a file, my code produces this error message:
Fatal in <TBufferFile::WriteFastArray>: Not enough space left in the buffer (1GB limit). 4952997 elements is greater than the max left of 956626 aborting
A quick search told me that this is a hard limit, which I cannot really get around. That’s fine, but is there anyway to tell when I’m approaching that limit? That is something like:
if (myTTree->GetRemainingBuffer() <= someLimit)
{
closeTFileAndCreateNewOne();
}
Where GetRemainingBuffer() tells me how much space is left in the buffer? If this is a file or branch limit, a similar way to test those?
ROOT Version: 6.32.06
Platform: macosx
Compiler: Apple clang version 16.0.0 (clang-1600.0.26.4)