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Improve logging for cancelled requests (#12587)

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Don't log stack traces for cancelled requests and use a custom HTTP
status code of 499.

Signed-off-by: Sean Quah <seanq@element.io>
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Sean Quah 2022-05-04 13:38:55 +01:00 • committed by GitHub
parent 75dff3dc98
commit b2df0716bc
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3 changed files with 32 additions and 1 deletions
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docs/usage/administration/request_log.md
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@ -28,7 +28,7 @@ See the following for how to decode the dense data available from the default lo
| NNNN | Total time waiting for response to DB queries across all parallel DB work from this request |
| OOOO | Count of DB transactions performed |
| PPPP | Response body size |
| QQQQ | Response status code (prefixed with ! if the socket was closed before the response was generated) |
| QQQQ | Response status code<br/>Suffixed with `!` if the socket was closed before the response was generated.<br/>A `499!` status code indicates that Synapse also cancelled request processing after the socket was closed.<br/> |
| RRRR | Request |
| SSSS | User-agent |
| TTTT | Events fetched from DB to service this request (note that this does not include events fetched from the cache) |