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Store state groups separately from events (#2784)

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* Split state group persist into seperate storage func

* Add per database engine code for state group id gen

* Move store_state_group to StateReadStore

This allows other workers to use it, and so resolve state.

* Hook up store_state_group

* Fix tests

* Rename _store_mult_state_groups_txn

* Rename StateGroupReadStore

* Remove redundant _have_persisted_state_group_txn

* Update comments

* Comment compute_event_context

* Set start val for state_group_id_seq

... otherwise we try to recreate old state groups

* Update comments

* Don't store state for outliers

* Update comment

* Update docstring as state groups are ints
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Erik Johnston 2018-02-06 14:31:24 +00:00 • committed by GitHub
parent b31bf0bb51
commit 3d33eef6fc
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12 changed files with 341 additions and 204 deletions
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synapse/events/snapshot.py
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@ -25,7 +25,9 @@ class EventContext(object):
The current state map excluding the current event.
(type, state_key) -> event_id
state_group (int): state group id
state_group (int|None): state group id, if the state has been stored
as a state group. This is usually only None if e.g. the event is
an outlier.
rejected (bool|str): A rejection reason if the event was rejected, else
False