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Aljoscha Krettek commented on FLINK-15557: ------------------------------------------ [~cmichels] do you know if updating to Kafka 2.2.2 would also work for your case? I doubt it but it might be worth a try since it's very hard (impossible) to update past 2.2.x with the current design of our exactly-once sink. > Cannot connect to Azure Event Hub/Kafka since Jan 5th 2020. Kafka version > issue > ------------------------------------------------------------------------------- > > Key: FLINK-15557 > URL: https://issues.apache.org/jira/browse/FLINK-15557 > Project: Flink > Issue Type: Bug > Components: Connectors / Kafka > Environment: Java 8, Flink 1.9.1, Azure Event Hub > Reporter: Chris > Priority: Blocker > > As of Jan 5th we can no longer consume messages from azure event hub using > Flink 1.9.1. I was able to fix the issue on several of our spring boot > projects by upgrading to spring boot 2.2.2, kafka 2.3.1, and kafka-clients > 2.3.1 > > 2020-01-10 19:36:30,364 WARN org.apache.kafka.clients.NetworkClient - > [Consumer clientId=consumer-1, groupId=****] Bootstrap broker > *****.servicebus.windows.net:9093 (id: -1 rack: null) disconnected -- This message was sent by Atlassian Jira (v8.3.4#803005)