Hi, If the camel sftp component creates a connection to a server (when a message is sent to an SFTP endpoint) and then the server closes the connection (e.g. because the server is restarted or it closes the connection for other reasons (like a timeout)) the next message sent to this endpoint will fail. Camel will then notice that the connection has closed and try to re-open the connection with the next message.
All camel versions are affected. I have created a jira ticket for that (https://issues.apache.org/jira/browse/CAMEL-6591) and attached a test and a patch (which is pretty trivial). Best regards Stephan