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diff --git a/docs/sample_log_config.yaml b/docs/sample_log_config.yaml
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+# Log configuration for Synapse.
+#
+# This is a YAML file containing a standard Python logging configuration
+# dictionary. See [1] for details on the valid settings.
+#
+# [1]: https://docs.python.org/3.7/library/logging.config.html#configuration-dictionary-schema
+
+version: 1
+
+formatters:
+    precise:
+        format: '%(asctime)s - %(name)s - %(lineno)d - %(levelname)s - %(request)s - %(message)s'
+
+filters:
+    context:
+        (): synapse.logging.context.LoggingContextFilter
+        request: ""
+
+handlers:
+    file:
+        class: logging.handlers.RotatingFileHandler
+        formatter: precise
+        filename: /var/log/matrix-synapse/homeserver.log
+        maxBytes: 104857600
+        backupCount: 10
+        filters: [context]
+        encoding: utf8
+    console:
+        class: logging.StreamHandler
+        formatter: precise
+        filters: [context]
+
+loggers:
+    synapse.storage.SQL:
+        # beware: increasing this to DEBUG will make synapse log sensitive
+        # information such as access tokens.
+        level: INFO
+
+root:
+    level: INFO
+    handlers: [file, console]
+
+disable_existing_loggers: false