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Support any process writing to cache invalidation stream.#7436
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erikjohnston merged 9 commits intodevelopfrom May 7, 2020
Merged
Support any process writing to cache invalidation stream.#7436erikjohnston merged 9 commits intodevelopfrom
erikjohnston merged 9 commits intodevelopfrom
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This is now superfluous due to being able to write to the cache invalidation stream from any process.
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@erikjohnston Looks like this has a conflict! |
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But it didn't just now 😭 |
clokep
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May 6, 2020
synapse/storage/data_stores/main/schema/delta/58/cache_instance.sql.postgres
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| DROP TABLE IF EXISTS cache_invalidation_stream; | ||
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| CREATE TABLE cache_invalidation_stream ( |
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I don't know if we care, but re-using this table name means it will be hard to downgrade.
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Good point, I've renamed it and truncated the old table.
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I think this looks OK, modulo the couple of comments I left.
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This is done via two big changes:
MultiWriterIdGeneratorStream.current_tokento accept an instance name parameter, which allows us to support the idea of there being multiple writers and so multiple positions to keep track of.Its probably worth going through commit by commit, as there is a bit of boiler plate refactoring going on.