[hobbit] curves went to zero but didn't have a report?

Steve Holmes sholmes42 at mac.com
Tue Jun 24 17:03:36 CEST 2008


2008/6/24 Andrew Chen <Andrew.Chen at ehealth-china.com>:

>  Hi Hubbard,
>         Thanks for your reply.  I have checked the conn, it  only stopped
> 10m(13:45~13:55).  I  want to know if the hobbit can check the server's CPU
> and Memory when they Zero. If I can recevie some email from hobbit. So I
> first know it. Can you give me some advice for hobbit setting? I am learning
> hobbitJ
>  ------------------------------
> *From:* Hubbard, Greg L [mailto:greg.hubbard at eds.com]
> *Sent:* 2008年6月24日 21:26
> *To:* hobbit at hswn.dk
> *Subject:* RE: [hobbit] curves went to zero but didn't have a report?
> Looking at this graph, there is always some memory utilization and some CPU
> utilization (seen via load average).  I think the real problem is that
> something went wrong with the agent on this machine, or it could no longer
> communicate with the Hobbit server during this time period. You should
> review the alert history for this node and then make sure that you configure
> alerts appropriately.  I suspect that you will find that all of the
> agent-based tests went "purple" at about 1:30.  The other thing to check is
> the "conn" column -- if the system was not reachable, then the purple alarms
> for the agent-based tests would have been suppressed in favor of the
> reachability alarm.
>  ------------------------------
I think the answer to your question is: not without some programming. I.e.
you are looking for a parameter in hobbit-client.cfg similar to the PROCS
config with which you can specify both a minimum and a maximum allowable
number of processes, but in the memory case you want to be able to specify a
minimum as well as a maximum on memory usage (ditto for cpu).
To do this you would have to write your own script. Note, this says nothing
about whether the usage *really* is dropping to zero or not. I think Greg is
probably right about the agent.

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