Why do I get these socket timeouts?!?!

[Greg Cope]

Thanks for all the replies.

I'll reset the check_nrpe -t timeout to 20 or 30 secs to see if it goes
away.

These hosts are running Oracle rac so often have a load of up to 10,
mostly due to IO wait on disks. Rarely CPU.  I know an SSL chat will
take some CPU, but not 10 secs worth on a dual proc host.  Even if it is
running RAC.

Thanks again.

Greg


On Wed, 2006-07-26 at 09:51 +1200, Steve Shipway wrote:
>  > > CHECK_NRPE: Socket timeout after 10 seconds.
> 
> This is the check_nrpe timing out.  There are 3 or 4 timeouts to check
> --
> 
> 1)Service checks have a global timeout in nagios.cfg.  This is usually
> about 30sec
> 2)check_nrpe has a timeout specified by -t.  This is usually 10sec.
> 3)The remote nrpe agent has a timeout, command_timeout in nrpe.cfg.
> This is usually about 20sec.
> 4)The plugin being run remotely may have its own timeout specified on
> the command line.
> 
> Normally, (1) should be the largest number. (3) should always be greater
> than (4), and (2) should be greater than (4).  (3) should be larger than
> the biggest (4) you have.  This will mean that you get timeout messages
> from the plugins rather than from the Nagios server.
> 
> In your case, the timeout is coming from (2).  This would normally
> indicate that your remote NRPE is having problems, but it may also mean
> that your (2) timeout is smaller than your (3) or (4) timeouts.
> 
> On our server, (1) is set to 60sec, (2) is usually 20sec, (3) is 19sec
> and (4) is 10sec.  This means that we receive more helpful timeout
> messages, as we know at which point the problem is.
> 
> Steve


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