[dbal] handle gracefully concurrency issues or 3rd party interruptions. #640
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Tobion
reviewed
Nov 16, 2018
| @@ -73,8 +74,9 @@ protected function fetchMessage(array $queues, int $redeliveryDelay): ?DbalMessa | |||
| ->fetch() | |||
| ; | |||
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| // the message has been removed by a 3rd party, such as truncate operation. | |||
| if (false == $deliveredMessage) { | |||
Tobion
reviewed
Nov 16, 2018
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| $this->redeliverMessagesLastExecutedAt = microtime(true); | ||
| $this->redeliverMessagesLastExecutedAt = microtime(true); | ||
| } catch (DeadlockException $e) { |
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it would be better to use \Doctrine\DBAL\Exception\RetryableException that I created. this would also cover lock timeouts.
can also cause errors likely that you should catch. I'd suggest to put the whole fetchMessage logic into a try ... catch (RetryableException $e)
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fixes #638