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https://issues.apache.org/jira/browse/HDFS-7023?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14226705#comment-14226705
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Colin Patrick McCabe commented on HDFS-7023:
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bq. Seems that you forget to modify CMake file to add libexpat.
Good catch, I will take a look at that.
bq. I wonder, are there any interests on creating a configuration that does not
depend on XML parser at all? What we can do is to create a Options class which
captures all configuration parameters directly. The XML parser can set the
configuration parameters accordingly.
Hmm. Maybe I'm misunderstanding your comment, but I think this is already
implemented. The {{Config}} class doesn't depend on the XML parser, in my
patch... you can create a {{Config}} programmatically and set the values to
whatever you want. {{XmlConfigParser}} is just a helper class that just fills
in a {{Config}} class, by calling the normal setter methods. If we want to add
another helper class that fills it in by a different method later, we can.
> use libexpat instead of libxml2 for libhdfs3
> --------------------------------------------
>
> Key: HDFS-7023
> URL: https://issues.apache.org/jira/browse/HDFS-7023
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: hdfs-client
> Reporter: Zhanwei Wang
> Assignee: Colin Patrick McCabe
> Attachments: HDFS-7023.001.pnative.patch
>
>
> As commented in HDFS-6994, libxml2 may has some thread safe issue.
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