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This commit is contained in:
Erik Johnston 2016-07-07 11:42:15 +01:00
parent c98e1479bd
commit b92e7955be
1 changed files with 3 additions and 0 deletions
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synapse/storage/events.py
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@ -1325,6 +1325,9 @@ class EventsStore(SQLBaseStore):
max_depth = max(row[0] for row in rows) max_depth = max(row[0] for row in rows)
if max_depth <= topological_ordering: if max_depth <= topological_ordering:
# We need to ensure we don't delete all the events from the datanase
# otherwise we wouldn't be able to send any events (due to not
# having any backwards extremeties)
raise SynapseError( raise SynapseError(
400, "topological_ordering is greater than forward extremeties" 400, "topological_ordering is greater than forward extremeties"
) )