watchdog issues

Hello Guys'

I have implement a pgpool-II cluster and the standby service want not to
add on the watchdog info..
Some issues for help?

[root(at)tes01 ~]# /usr/pgpool-10/bin/pcp_watchdog_info -p 9898 -U pgpool
Password:
2 YES test01.adm.test.ch:5432 Linux test01 test01.test.cacc.ch

test01.adm.test.ch:5432 Linux pgpool01 test01.test.cacc.ch 5432 9000 4
MASTER
Not_Set test02.test.cacc.ch 9999 9000 0 DEAD

-----
test01 active

├─12725 pgpool: wait for connection request
├─12784 pgpool: wait for connection request
└─14564 pgpool: wait for connection request

Jul 17 09:55:59 test01 pgpool[2925]: [431-1] 2018-07-17 09:55:59: pid 2925:
LOG: new connection received
Jul 17 09:55:59 test01 pgpool[2925]: [431-2] 2018-07-17 09:55:59: pid 2925:
DETAIL: connecting host=test01 port=59438
Jul 17 09:55:59 test01 pgpool[2925]: [432-1] 2018-07-17 09:55:59: pid 2925:
ERROR: backend authentication failed
Jul 17 09:55:59 test01 pgpool[2925]: [432-2] 2018-07-17 09:55:59: pid 2925:
DETAIL: backend response with kind 'E' when expecting 'R'
Jul 17 09:55:59 test01 pgpool[2925]: [432-3] 2018-07-17 09:55:59: pid 2925:
HINT: This issue can be caused by version mismatch (current version 3)
Jul 17 09:55:59 test01 pgpool[2166]: [222-1] 2018-07-17 09:55:59: pid 2166:
LOG: new connection received
Jul 17 09:55:59 test01 pgpool[2166]: [222-2] 2018-07-17 09:55:59: pid 2166:
DETAIL: connecting host=test01 port=59442
Jul 17 09:55:59 test01 pgpool[2166]: [223-1] 2018-07-17 09:55:59: pid 2166:
ERROR: backend authentication failed
Jul 17 09:55:59 test01 pgpool[2166]: [223-2] 2018-07-17 09:55:59: pid 2166:
DETAIL: backend response with kind 'E' when expecting 'R'
Jul 17 09:55:59 test01 pgpool[2166]: [223-3] 2018-07-17 09:55:59: pid 2166:
HINT: This issue can be caused by version mismatch (current version 2)
[root(at)test01 pgpool-II-10]#

-----
test02 standby

pgpool-log in my standby test02 :

Jul 13 11:38:08 test02 pgpool[824]: [7-1] 2018-07-13 11:38:08: pid 824:
FATAL: Add to watchdog cluster request is rejected by node "
pgpool01.adm.cacc.ch:9000"
Jul 13 11:38:08 test02 pgpool[824]: [7-2] 2018-07-13 11:38:08: pid 824:
HINT: check the watchdog configurations.
Jul 13 11:38:08 test02 pgpool[824]: [8-1] 2018-07-13 11:38:08: pid 824:
LOG: Watchdog is shutting down
Jul 13 11:38:08 test02 pgpool[776]: [2-1] 2018-07-13 11:38:08: pid 776:
LOG: watchdog child process with pid: 824 exits with status 768
Jul 13 11:38:08 test02 pgpool[776]: [3-1] 2018-07-13 11:38:08: pid 776:
FATAL: watchdog child process exit with fatal error. exiting pgpool-II
Jul 13 11:38:08 test02 systemd[1]: pgpool-II-10.service: main process
exited, code=exited, status=3/NOTIMPLEMENTED
Jul 13 11:38:08 test02 pgpool[830]: [1-1] 2018-07-13 11:38:08: pid 830:
FATAL: could not read pid file
Jul 13 11:38:08 test02 systemd[1]: pgpool-II-10.service: control process
exited, code=exited status=3
Jul 13 11:38:08 test02 systemd[1]: Unit pgpool-II-10.service entered failed
state.
Jul 13 11:38:08 test02 systemd[1]: pgpool-II-10.service failed

Thanks in advance,
Jean