Check behavior during the notification event

[Yu Watanabe]

Thank you for the reply.

So the length of Notfication depends on the command which you use...

>some ticketing and tracking systems, and some pagers).. At the height of
>the "bad times" Nagios would block for 40 or so seconds, sending out
>every single notification serially. Just dumping out a spool file for

  Do you mean by 40 second per Notfication event or took 40 seconds to send 
  20 contacts?

Thanks,
Yu Watanabe

Mike Lindsey さんは書きました:
>On 1/5/11 11:27 PM, Yu Watanabe wrote:
>> Thank you for the reply.
>>
>> I understood that notification events will hang up the normal service check events.
>>
>> I was bit curious about your comment.
>>
>>> A lot of people end up writing external notification handlers to take the load off of Nagios so the scheduled checks can continue whilst the external 
app 
>> queues and processes the notifications.
>>
>>   If you could share your knowledge it would be helpful. 
>>   Does people create external application that scans the nagios.log without using 
>>   any of Event Handlers or Notification Events of Nagios? Or perhaps event broker?
>>
>What I ended up doing was having notification commands that drop a spool
>file that contains the Nagios environment macros, into a directory. A
>second daemon reads in the spool files for the notification event,
>collects all the meta data (product dependencies, runbook links, ticket
>links, etc), caches it for the subsequent contacts.
>
>The spool file write is very quick, letting Nagios get back to dealing
>with check submission handling, and the secondary daemon takes a serial,
>blocking process, and does all the heavy lifting for notification
>generation and email in a fairly parallel process. A notification for us
>will include upwards of 20 contacts (some email lists, some individuals,
>some ticketing and tracking systems, and some pagers).. At the height of
>the "bad times" Nagios would block for 40 or so seconds, sending out
>every single notification serially. Just dumping out a spool file for
>each contact happens in a small fraction of a second. Pager contacts are
>still straight Nagios to postfix, because simple is better for anything
>where you're actually waking someone up at 3am.
>
>-- 
>Mike Lindsey
>
>


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