Commit Graph

4 Commits

Author SHA1 Message Date
Erik Johnston
0304ad0c3d Move setting of Filter into code.
We do this to prevent foot guns. The default config uses a MemoryFilter,
but users are free to change to logging to files directly. If they do
then they have to ensure to set the `filters: [context]` on the right
handler, otherwise records get written with the wrong context.

Instead we move the logic to happen when we generate a record, which is
when we *log* rather than *handle*.

(It's possible to add filters to loggers in the config, however they
don't apply to descendant loggers and so they have to be manually set on
*every* logger used in the code base)
2020-08-11 18:10:46 +01:00
Erik Johnston
db131b6b22
Change the default log config to reduce disk I/O and storage (#8040)
* Change default log config to buffer by default.

This batches up writes to the filesystem, which is more efficient for
disk I/O. This means that it can take some time for logs to get written
to disk. Note that ERROR logs (and above) immediately flush the buffer.

This only effects new installs, as we only write the log config if
started with `--generate-config` (in the same way we do for generating
signing keys).

* Default to keeping last 4 days of logs.

This hopefully reduces the amount of logs kept for new servers. Keeping
the last 1GB of logs is likely overkill for new servers, but equally may
not be enough for busy ones.

Instead, we keep the last four days worth of logs, enough so that admins
can investigate any problems that happened over e.g. a long weekend.
2020-08-11 18:09:46 +01:00
Richard van der Hoff
08815566bc
Automate generation of the sample and debian log configs (#6627) 2020-01-03 17:14:00 +00:00
Richard van der Hoff
f03c877b32 sample log config
TODO: automate generation of this
2019-12-24 17:39:58 +00:00