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| author | Erik Johnston <erik@matrix.org> | 2020-10-07 15:15:57 +0100 |
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| committer | Erik Johnston <erik@matrix.org> | 2020-10-07 17:08:58 +0100 |
| commit | fa8934b175467d589dd34fae18639cac0d738fc9 (patch) | |
| tree | b47f6e6628a61a5b6689ed576c98ec59b3542a8d /synapse/__init__.py | |
| parent | Add Ubuntu 20.10 (Groovy Gorilla) to build scripts. (#8475) (diff) | |
| download | synapse-fa8934b175467d589dd34fae18639cac0d738fc9.tar.xz | |
Reduce serialization errors in MultiWriterIdGen (#8456)
We call `_update_stream_positions_table_txn` a lot, which is an UPSERT that can conflict in `REPEATABLE READ` isolation level. Instead of doing a transaction consisting of a single query we may as well run it outside of a transaction.
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