2019-07-19 08:46:03   info   : Servers and connection counts:

2019-07-19 08:46:03   info   : MaxScale connections : 0 (0) in  127.0.0.1:4006 RUNNING (only)

2019-07-19 08:46:03   info   : MaxScale connections : 0 (0) in  127.0.0.1:4009 RUNNING (only)

2019-07-19 08:46:03   info   : Connected RUNNING (only) in      127.0.0.1:4006

2019-07-19 08:46:03   info   : Connected RUNNING (only) in      127.0.0.1:4009

2019-07-19 08:46:03   info   : Started SchemaRouter-Router client session [23] for 'maxuser' from ::ffff:127.0.0.1

2019-07-19 08:46:03   info   : (23) > Command: COM_QUERY, stmt: select @@version_comment limit 1 

2019-07-19 08:46:03   info   : (23) Route query to      s1 [127.0.0.1]:4006 <

2019-07-19 08:46:10   info   : (23) > Command: COM_QUIT, stmt:  

2019-07-19 08:46:10   info   : (23) Session write, routing to all servers.

2019-07-19 08:46:10   info   : (23) Route query to slave        127.0.0.1:4006

2019-07-19 08:46:10   error  : (23) debug assert at backend.cc:104 failed: !is_waiting_result()