Output file corrupted

[nsjarvis]

One of my output root tree files is unreadable root /cache/halld/gluex_simulations/REQUESTED_MC/NSJ_phi_t_3_6_f_20210902102334pm/root/trees/tree_kpkm__B4_gen_amp_041110_001.root *** DISPLAY not set, setting it to login1.jlab.org:0.0 root [0] Attaching file /cache/halld/gluex_simulations/REQUESTED_MC/NSJ_phi_t_3_6_f_20210902102334pm/root/trees/tree_kpkm__B4_gen_amp_041110_001.root as _file0... Error in <TFile::ReadKeys>: reading illegal key, exiting after 1 keys Error in <TKey::ReadObjWithBuffer>: Unknown class ~??'???ފ?c??6]?_ ??ԺLp?.7????I쉾R[?:??K?5d?a:7?x?r???_Y Info in <TFile::GetStreamerInfoList>: cannot find the StreamerInfo record in file /cache/halld/gluex_simulations/REQUESTED_MC/NSJ_phi_t_3_6_f_20210902102334pm/root/trees/tree_kpkm__B4_gen_amp_041110_001.root (TFile *) nullptr The version on tape, when restored to disk, gives the same error. I'll resubmit the job for that particular run, just wanted to let you know that this happened.

[T-Britton]

thanks for letting us know. We have not seen this again and do not, at this time, believe this is an MCwrapper issue