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| author | Yu Watanabe <watanabe.yu+github@gmail.com> | 2023-04-04 14:19:51 +0900 |
|---|---|---|
| committer | Yu Watanabe <watanabe.yu+github@gmail.com> | 2023-04-04 18:32:12 +0900 |
| commit | 1f06ea747b5939a1083c436dd7dae97b37bedee7 (patch) | |
| tree | c25d0c6fe82898e1a06bde0e6db4146b75adf516 /docs | |
| parent | 2360352ef02548723ac0c8eaf5ff6905eb9eeca5 (diff) | |
| download | systemd-1f06ea747b5939a1083c436dd7dae97b37bedee7.tar.gz | |
sd-journal: allow to specify compression algorithm through env
Fixes RHBZ#2183546 (https://bugzilla.redhat.com/show_bug.cgi?id=2183546).
Previously, journal file is always compressed with the default algorithm
set at compile time. So, if a newer algorithm is used, journal files
cannot be read by older version of journalctl that does not support the
algorithm.
Co-authored-by: Colin Walters <walters@verbum.org>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/ENVIRONMENT.md | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/ENVIRONMENT.md b/docs/ENVIRONMENT.md index 3ec5573ff9..a77992d2be 100644 --- a/docs/ENVIRONMENT.md +++ b/docs/ENVIRONMENT.md @@ -513,6 +513,14 @@ SYSTEMD_HOME_DEBUG_SUFFIX=foo \ journal. Note that journal files in compact mode are limited to 4G to allow use of 32-bit offsets. Enabled by default. +* `$SYSTEMD_JOURNAL_COMPRESS` – Takes a boolean, or one of the compression + algorithms "XZ", "LZ4", and "ZSTD". If enabled, the default compression + algorithm set at compile time will be used when opening a new journal file. + If disabled, the journal file compression will be disabled. Note that the + compression mode of existing journal files are not changed. To make the + specified algorithm takes an effect immediately, you need to explicitly run + `journalctl --rotate`. + `systemd-pcrphase`, `systemd-cryptsetup`: * `$SYSTEMD_FORCE_MEASURE=1` — If set, force measuring of resources (which are |