Zabbix server: More than 75% used in the trends cache

[G0nz0uk]

Hello,

I'm pretty new to Zabbix and it's been running well until I added 30 Cisco switches today. I already had 20 in there. However now I've getting this:

Zabbix server: More than 75% used in the trends cache

On my Zabbix server I have never set this, should I and what would you use?

### Option: TrendCacheSize
# Size of trend write cache, in bytes.
# Shared memory size for storing trends data.
#
# Mandatory: no
# Range: 128K-16G
# Default:
# TrendCacheSize=4M

Here is the rest of that section:

#

## Option: HistoryCacheSize
#Size of history cache, in bytes.
#Shared memory size for storing history data.
#
# Mandatory: no
# Range: 128K-16G
# Default:
# HistoryCacheSize=16M

### Option: HistoryIndexCacheSize
#Size of history index cache, in bytes.
#Shared memory size for indexing history cache.
#
# Mandatory: no
# Range: 128K-16G
# Default:
# HistoryIndexCacheSize=4M

### Option: TrendCacheSize
#Size of trend write cache, in bytes.
#Shared memory size for storing trends data.
#
# Mandatory: no
# Range: 128K-16G
# Default:
# TrendCacheSize=4M

### Option: TrendFunctionCacheSize
#Size of trend function cache, in bytes.
#Shared memory size for caching calculated trend function data.
#
# Mandatory: no
# Range: 128K-2G
# Default:
# TrendFunctionCacheSize=4M

### Option: ValueCacheSize
#Size of history value cache, in bytes.
#Shared memory size for caching item history data requests.
#Setting to 0 disables value cache.
#
# Mandatory: no
# Range: 0,128K-64G
# Default:
ValueCacheSize=512M

I was wondering what tweaks or graphs I should be looking at to help?


This is what I have in my setup:
1 x Zabbix server (v7.4.8)
1 x Postgres TSDB server
3 x Proxy servers

On my proxy servers I have this below set, is this too low?

ProxyMemoryBufferSize=16M

All linux Ubuntu. CPU, Disk and Memory look ok.





Thanks