parmi
Contributor
Contributor

Hyperic Apache HTTPD Monitoring

I'm using mod_snmp and mod_status monitoring Apache HTTPD. I'm getting some data for metric "Number of Concurrent Connections". However, the metric values appear to be too low when compared against statistics from analysis of Apache HTTPD logs.

What does "Number of Concurrent Connections" show? How is it determined? How often mod_snmp take the measurement? Does mod_snmp take snapshots every so often to determine the number of concurrent connections and average them out for the collection interval?

Also, is it possible to monitor accept queue length? A long queue, is a good measure to indicate build up in latency.

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2 Replies

Hi parmi,

I think you may need to enable the log-track info in order to get the info right on number of concurrent users. The metrics are collected directly from the Apache setup - nothing is averaged for a single datapoint by Hyperic directly. (at least I can't think of a scenario where it is).

I would say though that mod_snmp and mod_status is a little frustrating - but today its the only way to monitor apache. VMware just introduced a new module mod_bmx that is built into the vFabric Web Server - and later this quarter we'll see a Hyperic upgrade with it built in. Check out the blog announcing mod_bmx and stay tuned for more info in this forum.

Cheers,

-Stacey

parmi
Contributor
Contributor

Hi Stacey,

Thanks for your response. Could you please clarify following point from your response?

> enable the log-track info in order to get the info right on number of concurrent users

What is log-track info? How can it be enabled?

Thanks,

Parminder

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