Zenoss Core Graphs Aren't showing

Hello,

I got some problems in Zenoss core. I am using version 6.2.1 at the moment and the graphs aren't showing any data. I tried rebooting the server and zenoss.core several times but it then works for a few hours.

The first thing was that some of the services where using more memory than they had. I fixed that problem by giving them more memory. But there a still 2 services who are failing the health check.

As you can see the following two services.

Does anyone have the same problem or does someone know how to fix it.