Open for Voting

Rapid status change

When a node in NPM has been down and then comes back up, because of the length of polling it takes a very long time before the status changes to 100% up.

It leads the casual observer to think that there is still a problem with the node - particularly a problem during destructive testing.

It would be nice therefore that either

  • when NPM first detects that a node that has been down is now responding again that it polls more frequently so that it's status can change more quickly. Or
  • there is an option to turn on some sort of rapid polling for a period of time.

I can understand that in normal polling it may be a good idea to 'smooth' out any irregularities but there are times that it would be much more useful to have the node change instantly between up or down.

  • It would be against polling concept and I doubt that requested feature will come implemented. I understand that you need to be aware of status for few nodes. So you may use 'Poll now' option in node details which brings particular node to top of nodes to poll next polling cycle. You can also use PerfStack for those nodes in real time mode - place the PerfStack widget into Node Details view for necessary nodes. You can also create ad hoc PerfStack widget in real time mode.

    Another idea is to use Engineers Toolset (ETS) to poll particular nodes using different conditions/polling intervals or to poll the nodes in real time, or just to ping the node (using Web ETS).