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MaxScale produces warnings for clients when backend connections are abruptly closed (abruptly in the sense that the client doesn't initiate the process). For Java connections they look as follows:
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2018-06-11 15:50:14,953 WARN [org.jboss.jca.adapters.jdbc.local.LocalManagedConnectionFactory] (Timer-8) IJ030027: Destroying connection that is not valid, due to the following exception: org.mariadb.jdbc.MariaDbConnection@6529b7ed: java.sql.SQLNonTransientConnectionException: (conn:848) Connection killed by MaxScale
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Caused by: java.sql.SQLException: Connection killed by MaxScale
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Query is: SELECT 1
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These warnings may be considered as exceptions and require restarts.
So, I'd like to request some option for MaxScale to NOT produce these warnings.
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