Kegsay f8d3a762c4 Add a per-room mutex to federationapi when processing transactions (#1810) ... * Add a per-room mutex to federationapi when processing transactions This has numerous benefits: - Prevents us doing lots of state resolutions in busy rooms. Previously, room forks would always result in a state resolution being performed immediately, without checking if we were already doing this in a different transaction. Now they will queue up, resulting in fewer calls to `/state_ids`, `/g_m_e`, etc. - Prevents memory usage from growing too large as a result and potentially OOMing. And costs: - High traffic rooms will be slightly slower due to head-of-line blocking from other servers, though this has always been an issue as roomserver has a per-room mutex already. * Fix unit tests * Correct mutex lock ordering		2021-03-30 10:01:32 +01:00
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routing	Add a per-room mutex to federationapi when processing transactions (#1810)	2021-03-30 10:01:32 +01:00
federationapi.go	Gate peeking behind msc flags (#1731)	2021-01-22 16:08:47 +00:00
federationapi_test.go	NewClient and NewFederationClient updates (#1730)	2021-01-22 16:09:05 +00:00