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Revert "Add experimental support for sharding event persister. (#8170)" (#8242)

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* Revert "Add experimental support for sharding event persister. (#8170)"

This reverts commit 82c1ee1c22.

* Changelog
This commit is contained in:
Brendan Abolivier 2020-09-04 10:19:42 +01:00 • committed by GitHub
parent be16ee59a8
commit 9f8abdcc38
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19 changed files with 78 additions and 206 deletions
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synapse/storage/util/id_generators.py
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@ -231,12 +231,8 @@ class MultiWriterIdGenerator:
# gaps should be relatively rare it's still worth doing the book keeping
# that allows us to skip forwards when there are gapless runs of
# positions.
#
# We start at 1 here as a) the first generated stream ID will be 2, and
# b) other parts of the code assume that stream IDs are strictly greater
# than 0.
self._persisted_upto_position = (
min(self._current_positions.values()) if self._current_positions else 1
min(self._current_positions.values()) if self._current_positions else 0
)
self._known_persisted_positions = [] # type: List[int]
@ -366,7 +362,9 @@ class MultiWriterIdGenerator:
equal to it have been successfully persisted.
"""
return self.get_persisted_upto_position()
# Currently we don't support this operation, as it's not obvious how to
# condense the stream positions of multiple writers into a single int.
raise NotImplementedError()
def get_current_token_for_writer(self, instance_name: str) -> int:
"""Returns the position of the given writer.