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Clarification: a pg backend is coming to Conduit

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Rohan Kumar 2022-11-15 12:26:14 -08:00
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content/notes/matrix-performance-problems.md
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@ -11,6 +11,6 @@ Synapse is incredibly slow, which is why I run the [Conduit matrix server](https
This also gives Matrix a spam DDoS problem: sometimes people mass-create accounts on hundreds of servers with open registration, and mass-join rooms. The flood of thousands of join-events will <abbr title="Out Of Memory">OOM</abbr> most connected servers. My Conduit server (RocksDB backend, 1 vCPU, 1GB RAM) is actually fast and light enough to ride some of these out and go back to normal speeds a couple hours after the floods die down. This also gives Matrix a spam DDoS problem: sometimes people mass-create accounts on hundreds of servers with open registration, and mass-join rooms. The flood of thousands of join-events will <abbr title="Out Of Memory">OOM</abbr> most connected servers. My Conduit server (RocksDB backend, 1 vCPU, 1GB RAM) is actually fast and light enough to ride some of these out and go back to normal speeds a couple hours after the floods die down.
You generally don't want to join a room like Matrix-HQ unless you have good hardware. A new Postgres backend is coming soon, which should improve the situation. You generally don't want to join a room like Matrix-HQ unless you have good hardware. A new Postgres backend is coming to Conduit soon, which should improve the situation.
Once Conduit implements a few missing features (federated backfill, spaces hierarchy and room discovery), and once better spam controls roll out (e.g. automatically restricting joins to under <var>N</var> per second and/or automatically blocking open-registration servers during high join frequencies), I'd say the worst performance problems will be gone. Once Conduit implements a few missing features (federated backfill, spaces hierarchy and room discovery), and once better spam controls roll out (e.g. automatically restricting joins to under <var>N</var> per second and/or automatically blocking open-registration servers during high join frequencies), I'd say the worst performance problems will be gone.