Constant Change in Server Availability

[admin]

Hi Guys,

I have recently set up Hyperic to monitor a couple of remote offices

as a trial to see whether it would work within our organization.

For each search I set up an availability alert that emails me when

availability state changes and hence emails me with the notification.

It seems to have run fine for the first couple of weeks, however what

I am finding now is that 5 of the servers seem to be changing

availability every minute. I am getting 5 emails a minute telling me

that availability is at 0%.

I am not super experienced with Hyperic, and am wondering whether

anyone could give me some pointers as to why this happens?

Thank you

Gary

[staceyeschneide]

My guess is that you are having some time drift - do you have NTP installed on those machines (assuming they are Linux)?

[oizik]

Hi

Thank you for the reply they are Windows Servers mix of 2003/2008 and SBS2011. I can easily set up NTP on each one of them, do you think that would solve the problem?

Gary

[staceyeschneide]

Yes, availability is driven by timestamps of the server's agent checking in. If there is a drift, it appears the agent has gone offline, but if it pings back in it may get in the acceptable window again of time replied and come back online. I would try that first.

[oizik]

Looks like this was the solution, the moment the Hyperic Server was set up to sync with a remote NTP and the servers with the Hyperic Agents installed were also set up to sync up an NTP Server the alerts disappeared.

Thank you for your assistance.

Gary