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* 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 |
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.. | ||
caching | ||
eventutil | ||
hooks | ||
httputil | ||
sqlutil | ||
test | ||
transactions | ||
consumers.go | ||
log.go | ||
mutex.go | ||
version.go |