massakam commented on issue #2401: Consumer often discards received messages URL: https://github.com/apache/incubator-pulsar/issues/2401#issuecomment-415382210 @ivankelly > Do you have a reliable repro, or do you just see it happening regularly in production? In our environment, it can be reproduced by using the [OpenMessaging benchmark tool](https://github.com/openmessaging/openmessaging-benchmark) and applying the following load: ``` topics: 1 partitionsPerTopic: 1 messageSize: 1024 payloadFile: "payload/payload-1Kb.data" subscriptionsPerTopic: 100 producersPerTopic: 1 producerRate: 1000 consumerBacklogSizeGB: 0 testDurationMinutes: 2 ``` It seems that it tends to occur when there are many subscriptions. It also occurred several times in production. > Is TLS auth enabled, or just TLS transport? We are not using TLS auth.
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