When I try to use hadd command to merge some DAOD files, I got an error “ *** Break *** segmentation violation”
asetup 23.6.51,AthGeneration to create EVENT.root
asetup Athena,main,latest to create DAOD.root TRUTH3
Now the latest verison is Athena/25.0.44
Under the environment Athena,main,latest, I can open the root file successfully.
Then when I want to merge several DAOD files, hadd got an error *** Break *** segmentation violation
My files are smaller enough~ 100MB
I can attach two files link:
Hi,
these are obviously ATLAS-specific files in an ATLAS-specific environment. Generally it’s not a good idea to merge them with hadd. Why do you need to do that at all? If this is really necessary, try doing so with the AODMerge_tf.py transform (for more details, see AODMerge_tf.py --help).