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Tim Fox commented on KAFKA-3702: -------------------------------- Just looking at the code and it seems SSLEngine.closeOutbound is called _before_ the connection is flushed. Is this deliberate? According to the javadoc for closeOutBound: "Signals that no more outbound application data will be sent on thisĀ {{SSLEngine}}." https://docs.oracle.com/javase/7/docs/api/javax/net/ssl/SSLEngine.html#closeOutbound() > SslTransportLayer.close() does not shutdown gracefully > ------------------------------------------------------ > > Key: KAFKA-3702 > URL: https://issues.apache.org/jira/browse/KAFKA-3702 > Project: Kafka > Issue Type: Bug > Affects Versions: 0.10.0.0 > Reporter: Rajini Sivaram > Assignee: Rajini Sivaram > Priority: Major > > The warning "Failed to send SSL Close message" occurs very frequently when > SSL connections are closed. Close should write outbound data and shutdown > gracefully. -- This message was sent by Atlassian Jira (v8.3.4#803005)