Recommended zabbix 6.0 server configuration parameters

[RKZabbix]

We are upgrading from 3.4 to 6.0. and would like to know the recommended values for the below zabbix server configuration parameters?

CacheSize
CacheUpdateFrequency
DebugLevel
HistoryCacheSize
HistoryIndexCacheSize
LogFileSize
LogSlowQueries
MaxHousekeeperDelete
ProxyConfigFrequency
ProblemHousekeepingFrequency
ProxyDataFrequency
ServiceManagerSyncFrequency
SNMPTrapperFile
StartAlerters
StartDBSyncers
StartDiscoverers
StartEscalators
StartHistoryPollers
StartHTTPPollers
StartIPMIPollers
StartJavaPollers
StartLLDProcessors
StartODBCPollers
StartPingers
StartPollersUnreachable
StartPollers
StartPreprocessors
StartProxyPollers
StartReportWriters
StartSNMPTrapper
StartTimers
StartTrappers
StartVMwareCollectors
Timeout
TrapperTimeout
TrendCacheSize
TrendFunctionCacheSize
UnavailableDelay
UnreachableDelay
UnreachablePeriod
ValueCacheSize
VMwareCacheSize
VMwareFrequency
VMwarePerfFrequency
VMwareTimeout
WebServiceURL

[tim.mooney]

Many of the settings would be tuned based on specifics about your environment, so without knowing even the basics like NVPS, and what type of monitoring you do (lots of ping? lots of SNMP? almost exclusively passive agent?), it's not really useful to guess at tuning settings.

My recommendation is that you leave all of the settings at defaults, but make sure the appropriate Zabbix server template is applied to your server and watch for any warnings about pollers or other subsystems being too busy.

[cyber]

I don't see any reason to increase values, if something changed, then possibly for the better performing. Leave the parameters as they are for your 3.4... And for those parameters, that do not exist in 3.4, just leave to defaults and tune later, if there is a need...Observe, as tim.mooney said, and adapt..