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From Konstantin Boudnik <...@apache.org>
Subject Re: possible bug in puppet installation?
Date Sat, 29 Nov 2014 01:35:11 GMT
That's what I said. if HA is disabled then you'll get the secondary node
installed/configured/started.

On Sat, Nov 29, 2014 at 01:23AM, Leidle, Rob wrote:
> Thank you for the reply. I would think that is how it would work. However,
> isn╧t that script starting the secondary-namenode service when ha is
> Ёdisabled╡? That╧s the behavior I am seeing. I have no configured for HA
> yet secondary namenode is being configured and started by the puppet
> scripts.
> 
> On 11/28/14, 4:07 PM, "Konstantin Boudnik" <cos@apache.org> wrote:
> 
> >The logic here is that in HA environment you can go without a secondary
> >node
> >because your standby will carry on a copy of your primary's editlogs. As
> >an
> >optimization you can cut off a checkpointing overhead.
> >
> >Hope it helps,
> >  Cos
> >
> >On Fri, Nov 28, 2014 at 08:06PM, Leidle, Rob wrote:
> >> I am running into an issue with the puppet installation, and I think it
> >>is a bug (although I don╧t want to submit a patch for it until I make
> >>sure I understand the issue completely). When I do not specify a
> >>secondary name node I am seeing both the namenode and the secondary name
> >>node being installed and configured. The bug, I believe, is in the
> >>cluster.pp file:
> >> 
> >> 
> >>https://github.com/apache/bigtop/blob/master/bigtop-deploy/puppet/manifes
> >>ts/cluster.pp
> >> 
> >> On line 224 the logic for secondary namenode is present:
> >> 
> >> if ($hadoop_ha == "disabled") { hadoop::secondarynamenode { "secondary
> >>namenode":
> >> namenode_host => $hadoop_namenode_host,
> >> namenode_port => $hadoop_namenode_port,
> >> auth => $hadoop_security_authentication,
> >> }
> >> }
> >> 
> >> So, I think this is in error and the code should only execute if
> >>$hadoop_ha is not equal to Ёdisabled╡. Ie change the equals to a not
> >>equals. Can someone who understands these puppet scripts chime in and
> >>let me know if this is the appropriate patch to make? Or am I not
> >>understanding something about these installations?
> 

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