enable_environment_macros performance

[Steffen Poulsen]

> I tried to test enable_environment_macros=1 on my Nagios 
> 3.0rc2 installation with about 1000 hosts and 5000 services. 
> When enabled, the nagios server is under a 5.0  load 
> permanently with peaks at 20.  
> Disabled, the server load is about 0.1 to 0.5. It seems that 
> enable_environment_macros has a great impact on performance 
> so use it with caution for now on big install.
> 
> Has anyone had the same issue with enable_environment_macros ?

Yes, we had to disable the option as well.

In our case it took 20+ seconds to setup the environment pr. system
call, and it made notifications and other serialized options (including
event handlers) impossible. There are some information in earlier posts
on the subject.

This was at Solaris SPARC (T1000 platform), ~400 hosts, ~4000 services.

Best regards,
Steffen Poulsen

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