I’ve been wrestling with a BackupPC 4 install since March (updating to each successive release as they come). All but one of my servers backs up perfectly fine. One of my 3 file servers (all software-identical)
routinely encounters “rsync error: error in rsync protocol data stream (code 12) at io.c(226)” where it then sits until the timeout period has passed (though, the past few backups have hung well beyond the timeout period).
I’ve tried changing the backup method to tar from rsync, moving directories from filesystem to filesystem, and looking for/fixing messed up file attributes. These have offered temporary relief from the problem,
but it seems that the second incremental backup after the ‘fix’ is attempted will hang indefinitely.
Does anyone have any thoughts about how to troubleshoot this kind of problem?
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