Empirically, this helped my server considerably when handling gaps in Matrix HQ. The problem was that we would repeatedly call have_seen_events for the same set of (50K or so) auth_events, each of which would take many minutes to complete, even though it's only an index scan.
==============================
Bugfixes
--------
- Fix a bug introduced in v1.35.0rc1 when calling the spaces summary API via a GET request. ([\#10079](https://github.com/matrix-org/synapse/issues/10079))
-----BEGIN PGP SIGNATURE-----
iQFEBAABCgAuFiEEBTGR3/RnAzBGUif3pULk7RsPrAkFAmCvpZMQHGVyaWtAbWF0
cml4Lm9yZwAKCRClQuTtGw+sCdPwCACQIlIWd6eIoXLUc+wDcrd+k5xL376EdYah
x7ABswiYSm+9C4xr58gJD3xc6eiD2PCIWdZN0rsQDLIOfSXW6x1lyKD+Ds0HySok
MaVpsoxbb9o/Zf9qtXF2bLSArZUQwfoNaA45NLgNzfUIijf1e+bd2wNEgHlRSoMz
m10GggOFU0Ds/CCYZpxZw/eXDbLWL7eaHR30vw/jQ1cEsV+S4ucnUmLHFCF7YCyI
Np80pnywH5cYKerecldFWenL4YZJswVbx+AW9e3lBzq5jOrRZkmLkaHg10mCR2f6
CV03ie65Ce+7x5UU6v6nHA0DYUTQGIjlJBtyCN3tFglUduQ8Gpu0
=Mfsf
-----END PGP SIGNATURE-----
Merge tag 'v1.35.0rc2' into develop
Synapse 1.35.0rc2 (2021-05-27)
==============================
Bugfixes
--------
- Fix a bug introduced in v1.35.0rc1 when calling the spaces summary API via a GET request. ([\#10079](https://github.com/matrix-org/synapse/issues/10079))
* Make `invalidate` and `invalidate_many` do the same thing
... so that we can do either over the invalidation replication stream, and also
because they always confused me a bit.
* Kill off `invalidate_many`
* changelog
`keylen` seems to be a thing that is frequently incorrectly set, and we don't really need it.
The only time it was used was to figure out if we had removed a subtree in `del_multi`, which we can do better by changing `TreeCache.pop` to return a different type (`TreeCacheNode`).
Commits should be independently reviewable.
* Fix /upload 500'ing when presented a very large image
Catch DecompressionBombError and re-raise as ThumbnailErrors
* Set PIL's MAX_IMAGE_PIXELS to match homeserver.yaml
to get it to bomb out quicker, to load less into memory
in the case of super large images
* Add changelog entry for 10029
Fixes: https://github.com/matrix-org/synapse/issues/9962
This is a fix for above problem.
I fixed it by swaping the order of insertion of new records and deletion of old ones. This ensures that we don't delete fresh database records as we do deletes before inserts.
Signed-off-by: Marek Matys <themarcq@gmail.com>
Also add support for giving a callback to generate the JSON object to
verify. This should reduce memory usage, as we no longer have the event
in memory in dict form (which has a large memory footprint) for extend
periods of time.
Instead of parsing the full response to `/send_join` into Python objects (which can be huge for large rooms) and *then* parsing that into events, we instead use ijson to stream parse the response directly into `EventBase` objects.
To be more consistent with similar code. The check now automatically
raises an AuthError instead of passing back a boolean. It also absorbs
some shared logic between callers.
