Alternatively, you could also try using the convention used elsewhere in
hadoop: username/_HOST@domain. _HOST is generally replaced at runtime with
the host name. Most applications currently honor that convention (Internally
calling SecurityUtil.getServerPrincipal(String principalConfig,String hostname))
> On Jun 1, 2015, at 12:36 PM, Gour Saha <gs...@hortonworks.com> wrote:
>
> Have you tried using ${THIS_HOST} in appConfig? Did it not work?
>
> -Gour
>
> On 6/1/15, 9:14 AM, "Nathaniel Braun" <n.br...@criteo.com> wrote:
>
>> Hi everyone,
>>
>> We are currently working on the configuration files with Kerberos
>> principals in them, and it turns out that the Kerberos principal is
>> linked to the hostname, so we need it.
>>
>> What we would like to do is something like that:
>>
>>
>> 1. In appConfig.json
>>
>> Set the global hostname: "site.global.hostname": "${THIS_HOST}"
>>
>>
>> 2. In our default httpfs-site configuration file:
>>
>> Read that value using the following piece of code:
>>
>> <name>httpfs.authentication.kerberos.principal</name><value>HTTP/${@//site
>> /global/hostname}</value>
>> <name>httpfs.hadoop.authentication.kerberos.principal</name><value>HTTP/${
>> @//site/global/hostname}</value>
>>
>> For this to work, we need the THIS_HOST variable to work in the
>> appConfig.json file.
>>
>> How can we achieve such a feature?
>>
>> Thanks & regards,
>> Nathaniel
>>
>
