You might also be interested to check out http://www.coolservlets.com/Maintenance/ -
the guys there have such a tool already built. It's GPL.
regards,
David.
On Thu, 25 Jan 2001, CPC Livelink Admin wrote:
>
> In the servlet container, you can start a thread and sleep there and do your
> check. You could build a servlet whose whole job is this, using the
> LoadOnStartup mechanism to get it to start automatically.
>
>
>
> -----Original Message-----
> From: [EMAIL PROTECTED]
> [mailto:[EMAIL PROTECTED]]On Behalf Of Aron Kramlik
> Sent: Wednesday, January 24, 2001 11:33 PM
> To: [EMAIL PROTECTED]
> Subject: Heartbeat/watchdog signal
>
>
> Hi,
>
> This is more concerned with servlet engines in general rather
> than Tomcat itself but I had hoped I could get some good ideas
> from you.
>
> What I would like to do is have something call a method, or a
> servlet in this case, at regular intervals. The reason for this
> is to be able to update this software components' health status.
> I guess it is sort of like an SNMP check to see when the last
> time some software component has said it is OK.
>
> I am not sure how to implement this inside a servlet container,
> or if it can be. UNIX cron could be setup to do a HTTP / GET
> on a servlet at regular intervals, or so could a separate JVM
> that slept for a period of time and then called a servlet but
> I am wondering if there are any other solutions out there that
> people are using to report status on certain components.
>
> Thanks as always,
>
> Aron.
>
> ----
> Aron Kramlik
> Software Engineer
> Tenzing Communications Inc
> [EMAIL PROTECTED]
>
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