Server is unreachable
После случайного удаления таблиц trends и trends_uint перестали опрашиваться хосты "Server is unreachable". Был старый дамп 20 дневной давности этих двух таблиц - восстановил. Server is unreachable 
Не подскажите в чем может быть проблема и куда копать?
ОС: centos7
БД: mariadb
Не подскажите в чем может быть проблема и куда копать?
ОС: centos7
БД: mariadb
Code:
9251:20210825:145340.724 Starting Zabbix Server. Zabbix 4.4.0 (revision cfac660b25). 9251:20210825:145340.724 ****** Enabled features ****** 9251:20210825:145340.724 SNMP monitoring: YES 9251:20210825:145340.724 IPMI monitoring: YES 9251:20210825:145340.724 Web monitoring: YES 9251:20210825:145340.724 VMware monitoring: YES 9251:20210825:145340.724 SMTP authentication: NO 9251:20210825:145340.724 ODBC: YES 9251:20210825:145340.724 SSH2 support: YES 9251:20210825:145340.724 IPv6 support: YES 9251:20210825:145340.724 TLS support: YES 9251:20210825:145340.724 ****************************** 9251:20210825:145340.724 using configuration file: /etc/zabbix/zabbix_server.conf 9251:20210825:145340.728 current database version (mandatory/optional): 04040000/04040000 9251:20210825:145340.728 required mandatory version: 04040000 9251:20210825:145401.772 server #0 started [main process] ... 12337:20210825:145404.687 server #1856 started [icmp pinger #24] 12338:20210825:145404.687 server #1857 started [icmp pinger #25] 12370:20210825:145404.690 server #1877 started [preprocessing manager #1] 12339:20210825:145404.697 server #1858 started [icmp pinger #26] 12373:20210825:145405.183 server #1878 started [preprocessing worker #1] 12374:20210825:145405.184 server #1879 started [preprocessing worker #2] 12375:20210825:145405.184 server #1880 started [preprocessing worker #3] ... ... 12379:20210825:145404.686 server #1883 started [lld worker #2] 12380:20210825:145404.686 server #1884 started [alert syncer #1] 12343:20210825:145404.687 server #1861 started [icmp pinger #29] 12337:20210825:145404.687 server #1856 started [icmp pinger #24] 12338:20210825:145404.687 server #1857 started [icmp pinger #25] 12370:20210825:145404.690 server #1877 started [preprocessing manager #1] 12339:20210825:145404.697 server #1858 started [icmp pinger #26] 12373:20210825:145405.183 server #1878 started [preprocessing worker #1] 12374:20210825:145405.184 server #1879 started [preprocessing worker #2] 12375:20210825:145405.184 server #1880 started [preprocessing worker #3]
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