Hi all,
I am using the Download Service Client Configs feature in Ambari APIs and I
realized that in some of the configuration files the ${hdp.version} parameter
has not been resolved.
This token needs to be replaced by the right hdp version value in order to
properly use some of the properties.
Is it a bug in Ambari or it is the expected behavior?
In case it is expected, how/where is the best way to obtain the value for
{hdp.version}?
A good example is: mapred-site.xml configuration file form MapReduce2 service
where multiple property values downloaded maintain the parameter ${hdp.version}
These are two of them:
<property>
<name>mapreduce.application.classpath</name>
<value>$PWD/mr-framework/hadoop/share/hadoop/mapreduce/*:$PWD/mr-framework/hadoop/share/hadoop/mapreduce/lib/*:$PWD/mr-framework/hadoop/share/hadoop/common/*:$PWD/mr-framework/hadoop/share/hadoop/common/lib/*:$PWD/mr-framework/hadoop/share/hadoop/yarn/*:$PWD/mr-framework/hadoop/share/hadoop/yarn/lib/*:$PWD/mr-framework/hadoop/share/hadoop/hdfs/*:$PWD/mr-framework/hadoop/share/hadoop/hdfs/lib/*:$PWD/mr-framework/hadoop/share/hadoop/tools/lib/*:/usr/hdp/${hdp.version}/hadoop/lib/hadoop-lzo-0.6.0.${hdp.version}.jar:/etc/hadoop/conf/secure:/usr/hdp/current/ext/hadoop/*</value>
</property>
<property>
<name>mapreduce.application.framework.path</name>
<value>/hdp/apps/${hdp.version}/mapreduce/mapreduce.tar.gz#mr-framework</value>
</property>
Also I have seen tokens that get replaced in the UI but not in the
configuration file downloaded, for example:
The property yarn.nodemanager.aux-services.spark2_shuffle.classpath in advanced
yarn-site.xml (YARN service) shows this value in the UI:
{{stack_root}}/${hdp.version}/spark2/aux/*
While in the client configurations obtained after downloaded
<property>
<name>yarn.nodemanager.aux-services.spark2_shuffle.classpath</name>
<value>/usr/hdp/${hdp.version}/spark2/aux/*</value>
</property>
{{stack_root}} gets properly replaced but ${hdp.version} remains as a string
not resolved
How that? Can not the same logic applied to both parameters?
I would appreciate some answers and more details on this topic
Thanks
