As I understand combination of suggested option should work. Can see it
being used in Kerberos service as well in Ambari repository:
<property require-input="false">
<name>domains</name>
<display-name>Domains</display-name>
<description>
A comma-separated list of domain names used to map server host names
to the Realm name (e.g. .example.com,example.com). This is optional
</description>
<value/>
<value-attributes>
<empty-value-valid>true</empty-value-valid>
<overridable>false</overridable>
</value-attributes>
</property>
But for some reason doesn't work for it. It still marks config parameters
are required. I am using Ambari version 2.0, is there any known issue?
-Priyanka
On Mon, Jun 27, 2016 at 10:14 PM, Juanjo Marron <[email protected]>
wrote:
> Hi Priyanka,
>
> Could this property option help on your goal: <property
> require-input="false"> ?
>
>
>
>
> On Friday, June 24, 2016 8:52 AM, priyanka gugale <
> [email protected]> wrote:
>
>
> Hi,
>
> I am still facing the problem. Here is my updated configuration:
>
> <property>
> <name>datatorrent.config_file.path</name>
> <value></value>
> <description>Full path to existing dt-site.xml file to use for new
> installation. Overrides default and previous dt-site.xml</description>
> <value-attributes>
> <empty-value-valid>true</empty-value-valid>
> </value-attributes>
> </property>
>
> Even after adding this configuration it shows me the config is required.
>
> -Priyanka
>
> On Fri, Jun 24, 2016 at 1:24 PM, priyanka gugale <[email protected]>
> wrote:
>
> Thanks Alejandro fro response.
>
> -Priyanka
>
> On Thu, Jun 23, 2016 at 9:40 PM, Alejandro Fernandez <
> [email protected]> wrote:
>
> <property>
> <name>foo</name>
> <value></value>
> <description>bar</description>
> * <value-attributes>*
> * <empty-value-valid>true</empty-value-valid>*
> * </value-attributes>*
> <on-ambari-upgrade add="true"/>
> </property>
>
> From: priyanka gugale <[email protected]>
> Reply-To: "[email protected]" <[email protected]>
> Date: Thursday, June 23, 2016 at 6:06 AM
> To: "[email protected]" <[email protected]>
> Subject: Specify optional service config parameter without default value
>
> Hi,
>
> I would like to specify couple of service parameters which are optional
> and don't have a default value.
>
> I have specified my parameter in following way in config file:
>
> <property>
> <name>datatorrent.config_file.path</name>
> <value></value>
> <description>Full path to existing dt-site.xml file to use for new
> installation. Overrides default and previous dt-site.xml</description>
> </property>
>
> Ambari doesn't allow the blank config value. Please check attached
> screenshot.
> Is there any xml tag in property which will allow me to skip optional
> parameters?
>
> -Priyanka
>
>
>
>
>
>
