Hi John,
I provided the complete code which contains the rm_hosts in my original
post; see role/wh/hadoop.pp . I tried your suggestion but I was getting
errors in the role/wh/hadoop.pp file. Do you believe your code will work in
the role/wh/hadoop.pp above? If so can you be a little more explicit and
show me what you mean? I am still trying to solve the problem.
Thanks,
Colin
On Friday, September 5, 2014 8:45:07 PM UTC, jcbollinger wrote:
>
>
>
> On Friday, September 5, 2014 1:37:21 PM UTC-5, Colin Kincaid Williams
> wrote:
>>
>> I'm going to try your suggestion. Thanks for the response! I'm curious
>> however if $rm_hosts is available where you suggest.
>>
>
>
> I made no suggestion about where $rm_hosts is available in your code. You
> were proposing to use it in some scope where apparently you were confident
> it was available, and I gave you a way you could use it in that scope to
> achieve what you appeared to be trying to do. I relied on your evaluation
> of its availability.
>
> Inasmuch as you raise the question, however, you should note that resource
> declarations do not establish scopes, and moreover that parameter bindings
> in resource declarations do not add *anything* to the scope in which the
> declaration appears. The parameter bindings in a given parameter list are
> not available elsewhere in that list nor in the surrounding scope -- they
> are available only in the body of the declared resource.
>
>
>
>> E.G.
>>
>> class role::wh::hadoop::production {
>> $is_rm = $::hostname in $rm_hosts
>>
>>
>> When the relevant lines from the provided hadoop.pp pasted above :
>>
>> class role::wh::hadoop::production {
>>
>> class { 'cdh5::hadoop':
>> namenode_hosts => [
>> 'us3sm2nn010r07.comp.prod.local',
>> 'us3sm2nn011r08.comp.prod.local',
>> ],
>> rm_hosts => [
>>
>> 'us3sm2nn010r07.comp.prod.local',
>>
>> 'us3sm2nn011r08.comp.prod.local',
>> ],
>>
>>
>>
>
> You would probably want to pull the value being bound to class parameter
> cdh5::hadoop::rm_hosts out to a local variable in the role class:
>
> $rm_hosts = [
> 'us3sm2nn010r07.comp.prod.local',
> 'us3sm2nn011r08.comp.prod.local',
> ]
>
> $is_rm = $::hostname in $rm_hosts
>
> class { 'cdh5::hadoop':
> # ...
> rm_hosts => $rm_hosts,
> # ...
> }
>
>
> John
>
>
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