Hi,
I upgraded from OS server 4.6 to OS server 4.6.6 a few days ago, now I can't view some charts (the chart area shows up blank, like below):
The attached stack trace is in bootstrap.log.
Some charts work fine, some don't. It appears to be charts where there are multiple items being graphed (e.g. viewing graphs of metrics from a grouped set of servers) where this problem happens most. In my case, Tomcat Heap Memory Used/Free don't work, but Apache requests served per minute do.
I don't want to delete the item and re-discover itif possible, because we'll lose all the history.
Can anyone assist with resolving this?