I'm seeing messages like the following in my systemd journal:systemd-journald[52]: Vacuuming done, freed 0 bytessystemd-journald[52]: Vacuuming done, freed 0 bytessystemd-journald[52]: Vacuuming done, freed 0 bytessystemd-journald[52]: Vacuuming done, freed 4198400 bytessystemd-journald[52]: Vacuuming done, freed 4198400 bytessystemd-journald[52]: Vacuuming done, freed 4198400 bytessystemd-journald[52]: Vacuuming done, freed 4198400 bytessystemd-journald[52]: Vacuuming done, freed 4198400 bytesWhat do these messages mean?
What do systemd Vacuuming done, freed 0 bytes messages mean?
linux;logs;systemd
Well, it's more of a journald log than a systemd log, here's what journalctl says about vacuum size:journalctl(1) wrote:         --vacuum-size=, --vacuum-time=             Removes archived journal files until the disk space they use falls below the specified size (specified with the usual K, M,  G, T suffixes), or all journal files contain no data older than  the specified timespan (specified with the usual s, min, h,  days, months, weeks, years suffixes). Note that running  --vacuum-size= has only indirect effect on the output shown by --disk-usage as the latter includes active journal files, while the former only operates on archived journal files.  --vacuum-size= and  --vacuum-time= may be combined in a single invocation to enforce both a size and time limit on the archived journal files.