One one of my backuppc servers (running on a RPI4), I get the following daily error:
2022-01-05 01:05:49 Running BackupPC_rrdUpdate (pid=968) 2022-01-05 01:05:49 admin-1 : ERROR: unknown data acquisition function '' 2022-01-05 01:05:49 Finished admin-1 (BackupPC_rrdUpdate) And running 'rrdtool dump /var/lib/backuppc/log/poolUsage.rrd' gives the same error: ERROR: unknown data acquisition function '' If remove '/var/lib/backuppc/log/poolUsage.rrd' and run BackupPC_rrdUpdate manually, the problem goes away #rm /var/lib/backuppc/log/poolUsage.rrd #sudo -u backuppc uBackupPC_rrdUpdate RRD updated: date 1641427200; cpoolKb 0.000000; total 14345328797.155273; poolKb 0.000000; pool4Kb 0.000000; cpool4Kb 736297088.000000 And 'rrdtool dump /var/lib/backuppc/log/poolUsage.rrd' runs without error. It seems that somehow the rrd file (poolUsage.rrd) got corrupted... Not sure what caused this... but - It might be helpful to add a more descriptive/helpful error message to BackupPC_rrdUpdate as this was not simple to track down - Regardless, hope this helps others who may be encountering this error _______________________________________________ BackupPC-users mailing list BackupPC-users@lists.sourceforge.net List: https://lists.sourceforge.net/lists/listinfo/backuppc-users Wiki: https://github.com/backuppc/backuppc/wiki Project: https://backuppc.github.io/backuppc/