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2025年07月06日 16:01:57 JST - 3 minute read - Linux

Navidrome(journald)ログの容量を確認し、削除して、制限する

Navidromeのログは Where are the logs?にあるとおりjournalctl -u navidrome.serviceで確認することができる。しかし、いつ私が確認するとnavidromeをインストールした時から延々と残り続けている。どうやって容量の削減や制限を加えたら良いのか分からなかったのでメモしておく。

そもそもjournaldについて良く知らなかったので、 第546回　journaldとsyslogの関係 | gihyo.jpの解説を読んでおく。

そして、 journalctlログを削除する | mebeeとまさにジャストなサイトがあったので、そのとおりに実行しただけの内容だ。

journalctl -u サービス名.serviceでログを見る。

arimasou16@ubuntu:~$ journalctl -u navidrome.service
 4月 02 13:40:52 ubuntu navidrome[1637]: time="2024-04-02T13:40:52+09:00" level=warning msg="HTTP: GET http://ap.wakamonth272.uk/navidrome/api/song?_end=1&_order=ASC&_sort=>
 4月 02 13:41:18 ubuntu navidrome[1637]: time="2024-04-02T13:41:18+09:00" level=info msg="Now Playing" artist="タイナカ彩智, YUKA" player="Feishin [feishin/Linux]" requestI>
 4月 02 13:41:18 ubuntu navidrome[1637]: time="2024-04-02T13:41:18+09:00" level=info msg="Streaming file" artist="タイナカ彩智, YUKA" bitRate=0 cached=false format=raw orig>
 4月 02 13:41:33 ubuntu navidrome[1637]: time="2024-04-02T13:41:33+09:00" level=info msg="Streaming file" artist="NEKOMESHI(222)" bitRate=0 cached=false format=raw original>
 4月 02 13:46:31 ubuntu navidrome[1637]: time="2024-04-02T13:46:31+09:00" level=info msg="Streaming file" artist="NEKOMESHI(222)" bitRate=0 cached=false format=raw original>

容量確認

journalctl --disk-usageでログ容量を確認できる。

arimasou16@ubuntu:~$ journalctl --disk-usage
Archived and active journals take up 2.9G in the file system.

ログ削除(日時)

sudo journalctl --vacuum-time=日数daysで日数に合わせてログを削除する。

arimasou16@ubuntu:~$ sudo journalctl --vacuum-time=365days
[sudo] arimasou16 のパスワード: 
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001bfed28-0006140b01934cab.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001c139b2-000615094f19a8fa.journal (64.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c1ad35-00061568bee3f2cc.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001c1483c-00061515b6030a75.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001c27ba1-00061611f460b239.journal (64.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c28307-000616176f6e169f.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001c27e5d-000616144b1cb22a.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001c3bfd3-0006171133250b28.journal (72.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001c3ca07-00061719d4110d99.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c3d713-00061722bda168ba.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001c50fe7-0006180c6cd92592.journal (64.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c5136f-0006180f8002c53d.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001c50fe8-0006180c6d61b0a8.journal (16.0M).
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Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c67da1-0006191d7de55917.journal (8.0M).
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Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001c7b4eb-00061a0d6c8867f8.journal (80.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c7f62c-00061a428bf89f0e.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001c7c3d1-00061a19c9afa710.journal (16.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001c8fddf-00061c67d2c315b1.journal (72.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001c8fde0-00061c67d75af5d1.journal (16.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001c90357-00061c76cd191169.journal (8.0M).
Vacuuming done, freed 632.0M of archived journals from /var/log/journal/abcbbd30d83e799658bbc394571bd208.
Vacuuming done, freed 0B of archived journals from /var/log/journal.
Vacuuming done, freed 0B of archived journals from /run/log/journal.
arimasou16@ubuntu:~$ journalctl --disk-usage
Archived and active journals take up 2.3G in the file system.
arimasou16@ubuntu:~$ journalctl -u navidrome.service
 8月 03 21:03:48 ubuntu navidrome[1612]: time="2024-08-03T21:03:48+09:00" level=info msg="Now Playing" artist="明日の叙景" player="Symfonium [Symfonium/Android]" requestId=>

2024/07/06からになると思いきや、2024/08/03からとなるのは何故だ…

ログ削除(容量)

sudo journalctl --vacuum-size=制限メガ数Mでログ容量に合わせて削除する。

arimasou16@ubuntu:~$ sudo journalctl --vacuum-size=200M
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001ca3427-00061ec588b1b9e9.journal (72.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001ca34f6-00061ec63c8a53cd.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001ca4adf-00061ed818df5533.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@c7b994e93c984d0e8d4cb70b0a473e07-0000000001cb760b-00061fc3bc824263.journal (72.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001cb7a92-00061fc79c43af53.journal (16.0M).
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Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001e5887e-000633e4136795c1.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@ae8f5c2b6f4f45c29fea5999e11bd2e6-0000000001e6cc3b-000634d5b3550fea.journal (72.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1000@a6e727b942ca4534b9a9511f017206c0-0000000001e6cc83-000634d5ec0bce22.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/user-1002@e3a67587b62f4a44a7069f1cd4a7e9c3-0000000001e736bd-000635275e0d2ffe.journal (8.0M).
Deleted archived journal /var/log/journal/abcbbd30d83e799658bbc394571bd208/system@ae8f5c2b6f4f45c29fea5999e11bd2e6-0000000001e82a68-000635cb5c3a5f48.journal (72.0M).
Vacuuming done, freed 2.0G of archived journals from /var/log/journal/abcbbd30d83e799658bbc394571bd208.
Vacuuming done, freed 0B of archived journals from /var/log/journal.
Vacuuming done, freed 0B of archived journals from /run/log/journal.
arimasou16@ubuntu:~$ 
arimasou16@ubuntu:~$ journalctl --disk-usage
Archived and active journals take up 272.0M in the file system.
Archived and active journals take up 272.0M in the file system.
arimasou16@ubuntu:~$ journalctl -u navidrome.service
 5月 24 05:23:58 ubuntu navidrome[1548]: time="2025-05-24T05:23:58+09:00" level=error msg="SQL: `SELECT value FROM user_props WHERE (user_id = {:p0} AND key = {:p1})`" args>
 5月 24 05:23:58 ubuntu navidrome[1548]: time="2025-05-24T05:23:58+09:00" level=error msg="SQL: `SELECT value FROM user_props WHERE (user_id = {:p0} AND key = {:p1})`" args>
 5月 24 16:24:06 ubuntu navidrome[1548]: time="2025-05-24T16:24:06+09:00" level=error msg="SQL: `SELECT value FROM user_props WHERE (user_id = {:p0} AND key = {:p1})`" args>
 5月 24 16:24:07 ubuntu navidrome[1548]: time="2025-05-24T16:24:07+09:00" level=error msg="SQL: `SELECT value FROM user_props WHERE (user_id = {:p0} AND key = {:p1})`" args>

こちらも200.0Mに容量が減ると思いきや、272.0M…WHY?

容量制限

良く分からん部分はあるが、とりあえず、ログ容量の制限を付けておく。

/etc/systemd/journald.conf

-#SystemMaxUse=
+SystemMaxUse=400M

ついでに、Navidromeのログレベルを上げておく。

Navidrome Configuration Options | Navidrome

/var/lib/navidrome/navidrome.toml

+LogLevel = 'warn'

これで様子見。