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Over-fetching of messages leads to many lease timeouts causing the transport to stall #351

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danielmarbach opened this Issue Feb 5, 2019 · 0 comments

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danielmarbach commented Feb 5, 2019

Who's affected

All customers with a high degree of concurrency and a high load of messages in the input queue are affected.

Symptoms

The transport prefetches too many messages which cause many messages to run into lease time-outs before the message is processed. The lease timeouts can cause the transport to stall

Workaround

Manually set the DegreeOfParallelism and the BatchSize on the transport configuration in accordance with the maximum concurrency of the endpoint

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