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Merge pull request #2713 from matrix-org/rav/no_upsert_forever
Avoid retrying forever on IntegrityError
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commit
84b31a3e7a
@ -495,6 +495,7 @@ class SQLBaseStore(object):
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Deferred(bool): True if a new entry was created, False if an
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Deferred(bool): True if a new entry was created, False if an
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existing one was updated.
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existing one was updated.
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"""
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"""
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attempts = 0
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while True:
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while True:
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try:
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try:
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result = yield self.runInteraction(
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result = yield self.runInteraction(
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@ -504,6 +505,12 @@ class SQLBaseStore(object):
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)
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)
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defer.returnValue(result)
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defer.returnValue(result)
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except self.database_engine.module.IntegrityError as e:
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except self.database_engine.module.IntegrityError as e:
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attempts += 1
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if attempts >= 5:
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# don't retry forever, because things other than races
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# can cause IntegrityErrors
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raise
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# presumably we raced with another transaction: let's retry.
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# presumably we raced with another transaction: let's retry.
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logger.warn(
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logger.warn(
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"IntegrityError when upserting into %s; retrying: %s",
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"IntegrityError when upserting into %s; retrying: %s",
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