Expose DB Server stats

[AKlaus]

Idea
The current instance of yabt.ravendb.net is running on a free AWS instance. It's snappy and it's free, so it would be great if could showcase it.

Task [back-end]
Have an API end-point and an area on the UI (under "System") to show the following stats:

• Memory:
  • PhysicalMem: "4 GBytes",
  • FreeMem: "2.38 GBytes"
  • WorkingSet: "572.73 MBytes"
  • TotalMemoryMapped: "803.5 MBytes"
• CPU:
  • ProcessorAffinity: 3
  • UserProcessorTime: "00:46:21.9687500"
• DB stats:
  • CountOfIndexes: 4,
  • CountOfDocuments: 1080
  • SizeOnDisk: "259 MBytes"
• DB performance metrics:
  • RequestsPerSec (FiveMinuteRate): 0.2
  • IndexedPerSec (FiveMinuteRate): 0.2

Link to the docs.

Task [front-end]
Under the "System" area add another page with the DB stats

[yj7o5]

Been following this repo for some while. Can I take this issue and contribute to the repo @AKlaus ? :) Thanks

[AKlaus]

Hey mate!
Yes sure, any help would be appreciated. Are you thinking to take on the back-end implementation or also the front-end? If both, I'd suggest to submit a PR for the back-end first.
Happy to flesh out more details if needed

[yj7o5]

Sounds good, yea I have got the changes for back-end I'll go ahead and submit a PR just for that and then can submit a PR for front-end separately.