root@ebob2:~#cat /etc/systemd/journald.conf
[Journal]
Storage=persistent
SystemMaxUse=25M
root@ebob2:~#du /var/log/journal
4104 /var/log/journal/03c293bd986a453187665d14c363985f
4104 /var/log/journal/d28751c9522e4ac1967b57325d987ee7
8200 /var/log/journal/d72b1d712ee04aa3ab239a3d5180ef6c
4104 /var/log/journal/568baedd8f69439f92fb05a5909deaa4
4104 /var/log/journal/b55ede9d454e49a4ab50522d023efd5c
4104 /var/log/journal/05608df780e64b70b464b3e46aefda49
4104 /var/log/journal/a61127b7434c449b9ec3cea176cc7080
4104 /var/log/journal/06cd15ed69414a11ae3f3962ec8b4534
4104 /var/log/journal/1868bb848cfc445e8a38ceebae2398b5
4104 /var/log/journal/1f2b3f57a4234af98a63541337a3189d
4104 /var/log/journal/f77fc54f19ab47528a4d22e49de58653
4104 /var/log/journal/e0d7b0a34373438a8c34e5153cd9c085
4104 /var/log/journal/1975bb72e5dd407c993c661f3c2c0e0d
4 /var/log/journal/0dfec13bb88846948d0282a03d08d53c
4104 /var/log/journal/74c32200c3dc45fd8b8f29aaea4da313
4104 /var/log/journal/7d11f406690d41f0a0d9e13ce88a2689
4104 /var/log/journal/0c26d1616e5542c7b6f122288cf82a68
4104 /var/log/journal/739221ca40404f518e677b50b2018cd8
4104 /var/log/journal/09c21fe5e7ae4d4a8c23b79b33bc06da
4104 /var/log/journal/26d317e4ecb84a96a53198db128c8577
4104 /var/log/journal/c4106de49a7b43209308e31ed2de1aad
4104 /var/log/journal/1bf69bff7d7c45ba9accd41ba1045a17
90288 /var/log/journal
I know that there are issues being worked on with chatty services
journald seems to have overrun the 25M restraint.