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https://issues.apache.org/jira/browse/HDFS-9538?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15051168#comment-15051168
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Bob Hansen commented on HDFS-9538:
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Proposed design:
* Add methods to LoadFromFile and OverlayResourceFile to Configuration and
HdfsConfiguration
* Have the concept of a search path to separate the concerns of what data is
needed (e.g. core-site.xml) vs. where to find it (e.g. HADOOP_CONF_DIR)
* Doing environmental substitution (HADOOP_CONF_DIR) will be part of HDFS-9385
* This implementation will look for files in the search paths, but will not
search inside of jar files. While the Java implementation _can_ distribute
config files in Jar files, is that commonly done in the field?
* We will handle implementing the default configuration values in HDFS-9539
> libhdfs++: load configuration from files
> ----------------------------------------
>
> Key: HDFS-9538
> URL: https://issues.apache.org/jira/browse/HDFS-9538
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: Bob Hansen
> Assignee: Bob Hansen
>
> One goal of the Configuration classes are to allow the consumers of the
> libhdfs++ library to deploy client applications into hadoop edge nodes and
> have them pick up the Hadoop configuration that has been deployed there.
> Note that we also need to support the use case where the consumer application
> will manage Hadoop configuration files itself, or will handle all
> configuration out-of-band.
> libhdfs++ should be able to read files that are found in the field and easily
> construct an instance that will communicate with the cluster.
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