pubsub stops subscribing messages till failed message gets succeeded

[venkateshmech19]

we have implemented pubsub with orderingkey enabled. we are trying to publish 1, 2, 3, 4, 5 and the message 3 is not acknowledged. Normally the 4 and 5 should be subscribed till the message 3 retry. But pubsub stops reading other messages till the 3rd message gets succeeded. Can someone please help us on this issue. 

[Eduardo_Ortiz]

To know information on how pub/sub handles message failures you could check this document since it explains how the queue works and how the retry’s are handled by pub/sub