OS:RockyLinux9.3
Zabbix: 6.0.27
DB:MySQL 8.0.36

今回、CentOS8.3上でZabbixサーバー(4.0.15)利用していましたが、上記環境へUpdateしたのはいいのですが、
Zabbixサーバーが起動しないという事態になっており苦慮しています。
内容としてはwebブラウザでZabbixサーバーにアクセスしますと以下が表示されます。
--------------------------------
Database error
The Zabbix database version does not match current requirements. Your database version: 4000000. Required version: 6000000. Please contact your system administrator.

また、zabbix_server.logを確認しても途中で4.0.50にUpdateされていましたが、
logとしては抜粋のところが最後でそのあとは全く残っていない状態です。

mysqlそのものは問題なく起動されていて、コマンドラインでもmysqlへのアクセスは出来ます。

何が問題なのかがわからないため、皆様にご相談したく投稿しました。
以上、よろしくお願いいたします。

zabbix_server.logの抜粋
--------------------------------------
1804:20240318:153306.179 [Z3005] query failed: [2006] MySQL server has gone away [insert into history (itemid,clock,ns,value) values (33966,1710743586,121452194,0.004167),(38946,1710743586,122489484,0.083333),(33486,1710743586,124961083,0.008333),(33546,1710743586,126195064,0.000000),(40566,1710743586,128877803,13.269402),(33066,1710743586,131500901,0.000000),(32346,1710743586,133288142,0.000000),(40596,1710743586,133438909,7.679903),(29586,1710743586,133796625,139431.283927),(33906,1710743586,133905949,67.672219),(29406,1710743586,135710951,0.000000);
]
1804:20240318:153306.179 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1804:20240318:153306.179 database is down: reconnecting in 10 seconds
1809:20240318:153306.180 [Z3005] query failed: [2006] MySQL server has gone away [commit;]
1809:20240318:153306.180 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [rollback;]
1809:20240318:153306.180 cannot perform transaction rollback, connection will be reset
1809:20240318:153306.180 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1809:20240318:153306.180 database is down: reconnecting in 10 seconds
1891:20240318:153306.206 [Z3005] query failed: [1053] Server shutdown in progress [select h.hostid,h.status,h.tls_accept,h.tls_issuer,h.tls_subject,h.tls_psk_identity,a.host_metadata,a.autoreg_hostid from hosts h left join autoreg_host a on a.proxy_hostid is null and a.host=h.host where h.host='%hostname%' and h.status in (0,1) and h.flags<>2 and h.proxy_hostid is null]
1891:20240318:153306.206 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1891:20240318:153306.206 database is down: reconnecting in 10 seconds
1790:20240318:153306.242 [Z3005] query failed: [1053] Server shutdown in progress [select a.alertid,a.mediatypeid,a.sendto,a.subject,a.message,a.status,a.retries,e.source,e.object,e.objectid from alerts a left join events e on a.eventid=e.eventid where alerttype=0 and a.status=3 order by a.alertid]
1810:20240318:153307.181 [Z3005] query failed: [2006] MySQL server has gone away [insert into history (itemid,clock,ns,value) values (33394,1710743584,306562968,0.000537),(33393,1710743584,306562968,0.000000),(33431,1710743584,306562968,0.000514),(33504,1710743584,306562968,0.000000),(33653,1710743584,306562968,0.000491),(33985,1710743584,306562968,0.000000),(34023,1710743584,306562968,0.000451),(33689,1710743584,306562968,0.000000),(34022,1710743584,306562968,0.000000),(29059,1710743584,306562968,0.000000),(33615,1710743584,306562968,0.000000),(33690,1710743584,306562968,0.000574),(29060,1710743584,306562968,0.000341),(34060,1710743584,306562968,0.000441),(33764,1710743584,306562968,0.000562),(34059,1710743584,306562968,0.000000),(29291,1710743584,306562968,0.000342),(33467,1710743584,306562968,0.000000),(33616,1710743584,306562968,0.000500),(33763,1710743584,306562968,0.000000),(29290,1710743584,306562968,0.000000),(33800,1710743584,306562968,0.000000),(33542,1710743584,306562968,0.000500),(33801,1710743584,306562968,0.000514),(33837,1710743584,306562968,0.000000),(33430,1710743584,306562968,0.000000),(33468,1710743584,306562968,0.000708),(33541,1710743584,306562968,0.000000),(33838,1710743584,306562968,0.000506),(33874,1710743584,306562968,0.000000),(33579,1710743584,306562968,0.000493),(33875,1710743584,306562968,0.000483),(33911,1710743584,306562968,0.000000),(33505,1710743584,306562968,0.000531),(33578,1710743584,306562968,0.000000),(33912,1710743584,306562968,0.000483),(33948,1710743584,306562968,0.000000),(33652,1710743584,306562968,0.000000),(33949,1710743584,306562968,0.000488),(33986,1710743584,306562968,0.000570),(34027,1710743587,139018534,0.000000),(29587,1710743587,142235148,132458.760639),(33967,1710743587,144802175,0.008333),(40597,1710743587,145780055,9.903338),(32347,1710743587,148519911,0.000148),(33547,1710743587,149217020,0.000138),(33067,1710743587,150022445,146684.914350),(30127,1710743587,150070357,89.263805),(40567,1710743587,150987312,13.923754),(38947,1710743587,151922507,0.022500);
]
1810:20240318:153307.181 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1810:20240318:153307.181 database is down: reconnecting in 10 seconds
1790:20240318:153307.243 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1790:20240318:153307.243 database is down: reconnecting in 10 seconds
1791:20240318:153307.245 failed to send email: Couldn't resolve host name: Could not resolve host: mail.xxxxx.com
1813:20240318:153307.539 [Z3005] query failed: [1053] Server shutdown in progress [select escalationid,actionid,triggerid,eventid,r_eventid,nextcheck,esc_step,status,itemid,acknowledgeid from escalations where triggerid is not null and nextcheck<=1710743590 order by actionid,triggerid,itemid,escalationid]
1813:20240318:153307.539 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1813:20240318:153307.539 database is down: reconnecting in 10 seconds
1806:20240318:153308.184 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [begin;]
1806:20240318:153308.184 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1806:20240318:153308.184 database is down: reconnecting in 10 seconds
1801:20240318:153309.267 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [select h.hostid,h.host,h.name,t.httptestid,t.name,t.agent,t.authentication,t.http_user,t.http_password,t.http_proxy,t.retries,t.ssl_cert_file,t.ssl_key_file,t.ssl_key_password,t.verify_peer,t.verify_host,t.delay from httptest t,hosts h where t.hostid=h.hostid and t.nextcheck<=1710743589 and mod(t.httptestid,1)=0 and t.status=0 and h.proxy_hostid is null and h.status=0 and (h.maintenance_status=0 or h.maintenance_type=0)]
1801:20240318:153309.267 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1801:20240318:153309.267 database is down: reconnecting in 10 seconds
1816:20240318:153310.780 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [select taskid,type,clock,ttl from task where status in (1,2) order by taskid]
1816:20240318:153310.780 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1816:20240318:153310.780 database is down: reconnecting in 10 seconds
1857:20240318:153313.172 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [select hostid,key_,state,evaltype,formula,error,lifetime from items where itemid=29657]
1857:20240318:153313.172 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1857:20240318:153313.172 database is down: reconnecting in 10 seconds
1853:20240318:153313.173 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [select hostid,key_,state,evaltype,formula,error,lifetime from items where itemid=29656]
1853:20240318:153313.173 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1853:20240318:153313.173 database is down: reconnecting in 10 seconds
1835:20240318:153313.174 [Z3005] query failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2) [select hostid,key_,state,evaltype,formula,error,lifetime from items where itemid=29658]
1835:20240318:153313.174 [Z3001] connection to database 'zabbix' failed: [2002] Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)
1835:20240318:153313.174 database is down: reconnecting in 10 seconds
1889:20240318:153313.964 cannot send list of active checks to "xxx.xxx.xxx.xxx": host [???.???.???.???] not found
1444:20240318:153314.061 Got signal [signal:15(SIGTERM),sender_pid:27532,sender_uid:0,reason:0]. Exiting ...
1853:20240318:153314.063 database connection re-established
1891:20240318:153314.063 database connection re-established
1816:20240318:153314.063 database connection re-established
1835:20240318:153314.063 database connection re-established
1801:20240318:153314.063 database connection re-established
1857:20240318:153314.063 database connection re-established
1813:20240318:153314.063 database connection re-established
1804:20240318:153316.181 database connection re-established
1809:20240318:153316.181 database connection re-established
1809:20240318:153316.181 syncing history data in progress...
1810:20240318:153317.182 database connection re-established
1806:20240318:153318.186 database connection re-established
1806:20240318:153318.198 syncing history data... 100.000000%
1806:20240318:153318.198 syncing history data done
1444:20240318:153318.208 syncing trend data...
1444:20240318:153318.390 syncing trend data done
1444:20240318:153318.391 Zabbix Server stopped. Zabbix 4.0.50 (revision c40ad3289ad).