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This modifies the configuration of structured logging to be usable from the standard Python logging configuration. This also separates the formatting of logs from the transport allowing JSON logs to files or standard logs to sockets.
71 lines
2.5 KiB
YAML
71 lines
2.5 KiB
YAML
# Log configuration for Synapse.
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#
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# This is a YAML file containing a standard Python logging configuration
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# dictionary. See [1] for details on the valid settings.
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#
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# Synapse also supports structured logging for machine readable logs which can
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# be ingested by ELK stacks. See [2] for details.
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#
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# [1]: https://docs.python.org/3.7/library/logging.config.html#configuration-dictionary-schema
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# [2]: https://github.com/matrix-org/synapse/blob/master/docs/structured_logging.md
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version: 1
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formatters:
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precise:
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format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
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handlers:
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file:
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class: logging.handlers.TimedRotatingFileHandler
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formatter: precise
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filename: /var/log/matrix-synapse/homeserver.log
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when: midnight
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backupCount: 3 # Does not include the current log file.
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encoding: utf8
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# Default to buffering writes to log file for efficiency. This means that
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# will be a delay for INFO/DEBUG logs to get written, but WARNING/ERROR
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# logs will still be flushed immediately.
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buffer:
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class: logging.handlers.MemoryHandler
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target: file
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# The capacity is the number of log lines that are buffered before
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# being written to disk. Increasing this will lead to better
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# performance, at the expensive of it taking longer for log lines to
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# be written to disk.
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capacity: 10
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flushLevel: 30 # Flush for WARNING logs as well
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# A handler that writes logs to stderr. Unused by default, but can be used
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# instead of "buffer" and "file" in the logger handlers.
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console:
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class: logging.StreamHandler
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formatter: precise
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loggers:
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synapse.storage.SQL:
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# beware: increasing this to DEBUG will make synapse log sensitive
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# information such as access tokens.
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level: INFO
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twisted:
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# We send the twisted logging directly to the file handler,
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# to work around https://github.com/matrix-org/synapse/issues/3471
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# when using "buffer" logger. Use "console" to log to stderr instead.
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handlers: [file]
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propagate: false
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root:
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level: INFO
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# Write logs to the `buffer` handler, which will buffer them together in memory,
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# then write them to a file.
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#
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# Replace "buffer" with "console" to log to stderr instead. (Note that you'll
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# also need to update the configuration for the `twisted` logger above, in
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# this case.)
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#
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handlers: [buffer]
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disable_existing_loggers: false
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