Memory is slowly leaking and not recovering until the server is rebooted.

upgrade from 3.2 to 4.2.3

Proxy:

      Redhat 7, 8 cores, 12gb memory

No vmware host monitored by this proxy, FYI I have other proxies with the same config and there are no memory leaks on them, memory goes up and down as processing happens.

287 agents reporting to the proxy, 19780 items.

StartPollers=350
StartIPMIPollers=10
StartPollersUnreachable=300
StartTrappers=10
StartPingers=50
StartDiscoverers=10
StartDBSyncers=10
StartHTTPPollers=50
StartVMwareCollectors=5
VMwareFrequency=60
VMwareCacheSize=768M
CacheSize=768M
HistoryCacheSize=512M