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https://issues.apache.org/jira/browse/HDFS-9117?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14981582#comment-14981582
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James Clampffer commented on HDFS-9117:
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"The principle is that the C++ APIs should be able to solely rely on the
Options class for all configurations. The class is strongly-typed and has clear
schema. From the dependency point of view there are strong desires and use
cases that running libhdfspp without depending XML configuration. I'll be -1 if
the C++ APIs are bundled with XML configurations."
I just want to clarify, when you say the C++ APIs do you mean the lower level
wire protocol and continuation stuff currently living mostly in /fs and
/reader? Or does this also include the FileHandle/HadoopFileSystem objects
that were added with the C API but are useful on their own?
>From my point of view I think it's useful to be able to use this from the
>HadoopFileSystem object. I'm working on retry stuff now and I'd like to be
>able to pull in values for things like time to reset the DN errors from a
>configuration object. From an application level or user point of view I think
>it's important to be able to do this:
HadoopFileSystem *myfs = new HadoopFileSystem(some_configuration_object)
> Config file reader / options classes for libhdfs++
> --------------------------------------------------
>
> Key: HDFS-9117
> URL: https://issues.apache.org/jira/browse/HDFS-9117
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Affects Versions: HDFS-8707
> Reporter: Bob Hansen
> Assignee: Bob Hansen
> Attachments: HDFS-9117.HDFS-8707.001.patch,
> HDFS-9117.HDFS-8707.002.patch, HDFS-9117.HDFS-8707.003.patch,
> HDFS-9117.HDFS-8707.004.patch, HDFS-9117.HDFS-8707.005.patch,
> HDFS-9117.HDFS-8707.006.patch, HDFS-9117.HDFS-8707.008.patch,
> HDFS-9117.HDFS-8707.009.patch, HDFS-9117.HDFS-8707.010.patch,
> HDFS-9117.HDFS-9288.007.patch
>
>
> For environmental compatability with HDFS installations, libhdfs++ should be
> able to read the configurations from Hadoop XML files and behave in line with
> the Java implementation.
> Most notably, machine names and ports should be readable from Hadoop XML
> configuration files.
> Similarly, an internal Options architecture for libhdfs++ should be developed
> to efficiently transport the configuration information within the system.
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