2017-10-08 01:32:25 error : Loading database names for service Write Service encountered error when querying database privileges: Lost connection to MySQL server during query.

2017-10-08 01:32:25 error : Fatal: MaxScale 2.0.5 received fatal signal 11. Attempting backtrace.

2017-10-08 01:32:25 error : Commit ID: 60c69d0f7f461a1773a4e848e87fa3fcc7b0e421 System name: Linux Release string: Red Hat Enterprise Linux Server release 6.9 (Santiago)

2017-10-08 01:32:25 error : /usr/bin/maxscale() [0x403b9c]

2017-10-08 01:32:25 error : /lib64/libpthread.so.0() [0x394360f7e0]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(hashtable_fetch+0x88) [0x3946a3fae2]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libMySQLAuth.so.1.0.0(check_db_name_after_auth+0x68) [0x7fbd3ccf2f27]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libMySQLAuth.so.1.0.0(+0x1fe0) [0x7fbd3ccf2fe0]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libMySQLAuth.so.1.0.0(+0x1261) [0x7fbd3ccf2261]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libMySQLClient.so(+0x254a) [0x7fbd3cef654a]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libMySQLClient.so(+0x248c) [0x7fbd3cef648c]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0() [0x3946a4ceff]

2017-10-08 01:32:25 error : /usr/lib64/maxscale/libmaxscale-common.so.1.0.0(poll_waitevents+0x5fc) [0x3946a4c7a4]

2017-10-08 01:32:25 error : /usr/bin/maxscale(worker_thread_main+0x2a) [0x404a5f]

2017-10-08 01:32:25 error : /lib64/libpthread.so.0() [0x3943607aa1]

2017-10-08 01:32:25 error : /lib64/libc.so.6(clone+0x6d) [0x39432e8bcd]

[maxscale]

threads=auto

maxlog=1

logdir=/opt/hd/db/var/

datadir=/opt/hd/db/datadir1

cachedir=/opt/hd/db/tmp/maxscale_cache

[e47]

type=server

address=XXX.XX.XXX.25

port=3306

protocol=MySQLBackend

[e48]

type=server

address=XXX.XX.XXX.26

port=3306

protocol=MySQLBackend

[e49]

type=server

address=XXX.XX.XXX.27

port=3306

protocol=MySQLBackend

[MySQL Monitor]

type=monitor

module=mysqlmon

servers=e47,e48,e49

user=maxscale

passwd=YYY

#monitor_interval=10000

monitor_interval=1000

backend_connect_timeout=9

detect_stale_master=true

[Write Service]

type=service

router=readconnroute

router_options=master

servers=e47,e48,e49

user=maxscale

passwd=YYY

enable_root_user=true

[Read Service]

type=service

router=readconnroute

servers=e47,e48,e49

user=maxscale

passwd=YYY

enable_root_user=true

[MaxAdmin Service]

type=service

router=cli

[MaxInfo Service]

type=service

router=maxinfo

user=maxscale

passwd=YYY

[MaxInfo Listener]

type=listener

service=MaxInfo Service

protocol=MySQLClient

port=9003

[Write Listener]

type=listener

service=Write Service

protocol=MySQLClient

port=3306

[Read Listener]

type=listener

service=Read Service

protocol=MySQLClient

port=4307

[MaxAdmin Unix Listener]

type=listener

service=MaxAdmin Service

protocol=maxscaled

socket=default

[MaxAdmin TCP Listener]

address=0.0.0.0

type=listener

service=MaxAdmin Service

protocol=maxscaled

port=6603