Woops, an amendment to look up the 'data' parameter of class 'foo' in Hiera:
# hiera -c /etc/puppet/hiera.yaml -y
/var/lib/puppet/yaml/facts/nodename.domain.yaml environment=production foo::data
----- Original Message -----
From: "Luke Bigum" <luke.bi...@lmax.com>
To: puppet-users@googlegroups.com
Sent: Thursday, 9 July, 2015 9:38:29 AM
Subject: Re: [Puppet Users] Re: Hiera auto binding
Hi DJ,
In general the more Hiera calls you make the slower your manifests will
compile. However, the difference between 1 and 10 is negligible, between 1 and
a 1000 you might loose a few seconds. If you use hiera-gpg it will take a
little longer (hiera-eyaml should be faster), and if you add more levels of
depth it will take a little longer as well. As for the time difference between
a data binding hiera lookup and a in-manifest function call, I'd say the
difference is pretty much zero.
As for tracing where the data is coming from, it will only be coming from one
of three places. The highest priority is an explicit value passed to class
parameter:
class { 'foo':
data => "explicit",
}
The second highest priority is a Hiera data binding, and you can use Hiera on
the command line to figure that out:
# hiera -c /etc/puppet/hiera.yaml -y
/var/lib/puppet/yaml/facts/nodename.domain.yaml environment=production data
And the lowest priority is a class parameter default:
class foo($data = "defaultstring") {...}
--
Luke Bigum
----- Original Message -----
From: "DJ" <d.josh...@gmail.com>
To: puppet-users@googlegroups.com
Sent: Wednesday, 8 July, 2015 4:59:22 PM
Subject: [Puppet Users] Re: Hiera auto binding
Sorry correction, it's "Data binding"
On Wednesday, 8 July 2015 21:27:44 UTC+5:30, DJ wrote:
>
> Hello,
>
> i was reading this doc "
> http://garylarizza.com/blog/2014/10/24/puppet-workflows-4-using-hiera-in-anger";
>
> which says it's not good idea to use Hiera auto binding feature, can you
> guys suggest if you are using this feature and you have noticed any
> performance issues or any issues related to not able to find from where
> data is coming?
>
> Any feedback please.
>
> Regards,
> DJ
>
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http://www.LMAX.com/
#1 Fastest Growing Tech Company in the UK - Sunday Times Tech Track 100 (2014)
2015 Best Margin Sector Platform - Profit & Loss Readers' Choice Awards
2015 Best FX Trading Venue - ECN/MTF - WSL Institutional Trading Awards
2014 Best Margin Sector Platform - Profit & Loss Readers' Choice Awards
2014 Best FX Trading Venue - ECN/MTF - WSL Institutional Trading Awards
2014 Best Infrastructure/Technology Initiative - WSL Institutional Trading
Awards
2013 #15 Fastest Growing Tech Company in the UK - Sunday Times Tech Track 100
2013 Best Overall Testing Project - The European Software Testing Awards
2013 Best Margin Sector Platform - Profit & Loss Readers' Choice Awards
2013 Best FX Trading Platform - ECN/MTF - WSL Institutional Trading Awards
2013 Best Executing Venue - Forex Magnates Awards
---
FX and CFDs are leveraged products that can result in losses exceeding your
deposit. They are not suitable for everyone so please ensure you fully
understand the risks involved.
This message and its attachments are confidential, may not be disclosed or used
by any person other than the addressee and are intended only for the named
recipient(s). This message is not intended for any recipient(s) who based on
their nationality, place of business, domicile or for any other reason, is/are
subject to local laws or regulations which prohibit the provision of such
products and services. This message is subject to the following terms
(http://lmax.com/pdf/general-disclaimers.pdf), if you cannot access these,
please notify us by replying to this email and we will send you the terms. If
you are not the intended recipient, please notify the sender immediately and
delete any copies of this message.
LMAX Exchange is the trading name of LMAX Limited. LMAX Limited operates a
multilateral trading facility. LMAX Limited is authorised and regulated by the
Financial Conduct Authority (firm registration number 509778) and is a company
registered in England and Wales (number 6505809).
LMAX Hong Kong Limited is a wholly-owned subsidiary of LMAX Limited. LMAX Hong
Kong is licensed by the Securities and Futures Commission in Hong Kong to
conduct Type 3 (leveraged foreign exchange trading) regulated activity with CE
Number BDV088.
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