[smokeping-users] Smokeping, master-slave, slave targets on master host
Andrew Anderson
makeconfig at gmail.com
Fri Oct 4 17:17:24 CEST 2013
I get it, thank you again !
2013/10/4, Gregory Sloop <gregs at sloop.net>:
> I've been working on a "usual-screw-ups" FAQ:
>
> I think it applies here:
>
> ---
> 3) Master-slave setups:
>
> B) Why are my graphs empty for the slaves?
> As per 1 & 2 above
>
> ---
> Usually when there's an "empty" graph the problem is one of two things:
> 1) smokeping can't write the data to the RRD.
> 2) the web-server can't read it.
>
> If you've really debugged things and you're sure it's successfully writing
> to the RRD, then you'd want to watch the web-server logs and see if it's
> really reading them.
> ---
>
> But master-slave has one additional wrinkle - though the principles are the
> same.
>
> For *slaves*, smokeping IS NOT *writing* the data to the RRD files - they're
> getting pushed there by the web-server.
> So, in master-slave mode you need to be sure that the user your web-server
> is running as [apache perhaps] has *WRITE* permissions to the RRD files.
>
> Also, if you simply go mod the permissions and then you add *new* slave
> targets, those new slave RRD files won't have the right permissions.
> So you either have to simply handle that, or tweak things so the new RRD's
> get created with the appropriate level of permissions.
>
> ---
>
> AA> The master is not checks the target which assigned to the slave. But
> AA> the graph is still blank, and the slave sends data to the master
> AA> successfuly:
>
> AA> FPing: Executing /usr/local/sbin/fping -C 20 -q -B1 -r1 -b1000 -i10
> 2.2.2.2
> AA> FPing: Got fping output: '2.2.2.2 : 6.94 4.08 4.26 4.13 4.61 4.18 4.26
> AA> 3.47 5.15 7.07 7.03 3.48 3.90 6.60 4.74 3.42 3.20 6.61 3.72 3.54'
> AA> Sent data to Server. Server said OK
>
> AA> 2013/10/4, Andrew Anderson <makeconfig at gmail.com>:
>>> Thank you !
>>>
>
>
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