element-hq / element-hq/synapse
`get_missing_events` is quite expensive
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A-Messages-Endpoint
A-Performance
S-Minor
T-Enhancement
- Dominant language
- Python
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- Avg merge
- 5d 6h
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Description
This issue has been migrated from [#3526](https://github.com/matrix-org/synapse/issues/3526).
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... mostly because it does `filter_events_for_server`, which is itself expensive. It's quite easy to completely monopolise a server with `get_missing_events` requests.
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