Check_MK: lib-mothership01 errors

[acozine]

We see this notification frequently:

Service PROBLEM notification
Host: lib-mothership01 (IP: 128.112.201.27)
Service: DotNet Memory Management Global
State: CRITICAL
Additional Info
Time in GC: 15.00% (warn/crit at 12.00%/15.00%)

CheckMK seems to be unhappy that this Windows machine is spending a lot of time doing garbage collection. We did not set this limit, so it is a standard from CheckMK. We have seen performance issues on this box. A few months ago, CheckMK was warning about memory usage being high, so we added more memory. This GC warning may be legit.