19/06/19 00:30:01,152 ERROR [@sync-executor-0] [StatisticsReporter            ] [] Unsuccessful sending statistics because of java.net.ConnectException: Connection refused (Connection refused) Size 2709
19/06/19 05:30:01,103 ERROR [@sync-executor-0] [StatisticsReporter            ] [] Unsuccessful sending statistics because of java.net.ConnectException: Connection refused (Connection refused) Size 2709
19/06/19 10:30:01,058 ERROR [@sync-executor-0] [StatisticsReporter            ] [] Unsuccessful sending statistics because of java.net.ConnectException: Connection refused (Connection refused) Size 2709
19/06/19 15:30:01,369 ERROR [@sync-executor-0] [StatisticsReporter            ] [] Unsuccessful sending statistics because of java.net.ConnectException: Connection refused (Connection refused) Size 2708
19/06/19 20:30:01,204 ERROR [@sync-executor-0] [StatisticsReporter            ] [] Unsuccessful sending statistics because of java.net.ConnectException: Connection refused (Connection refused) Size 2708