On Mon, Jun 5, 2023 at 3:07 AM Nick Holland <nick@holland-consulting.net> wrote:
>
> =-------------------------
> PREVIOUS=(find previous backup)
> TODAY=(today's date)
> OLDEST=(find oldest backup in the set)
> REMOTE=(machine we are backing up)
>
> # remove oldest backup
> rm -r $OLDEST &
>
> mkdir $TODAY
>
> # make new backup
> rsync --link-dest $PREVIOUS $REMOTE $TODAY
> =-------------------------
>
> [REDACTED]
>
> Here's where it gets weird -- removing the '&' after the rm -r $OLDEST
> line seems to have FIXED THE PROBLEM. No problems in 18 days, which is
> a pretty good record.
>
Just spitballing here... you were running the removal of the oldest in
the background while bringing in new data for the backup. Maybe it
was hitting an I/O ceiling of some kind under those conditions? May
still warrant investigation since it could still hit this "ceiling"
under a big enough I/O load.
--
Aaron Mason - Programmer, open source addict
I've taken my software vows - for beta or for worse
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