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https://issues.apache.org/jira/browse/HDFS-8053?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14905583#comment-14905583
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Mingliang Liu commented on HDFS-8053:
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Thank you [~wheat9] for the comments. I'll address them as following briefly
(unordered).
1. I filed new jira [HDFS-9130] to replace code that casts {{Log4JLogger}} with
{{GenericTestUtils#setLogLevel}} for all tests in {{hadoop-hdfs}}.
3. I also filed new jira [HDFS-9131] to move related config keys like
{{DFS_CLIENT_HTRACE_PREFIX}} from {{DFSConfigKeys}} to {{HdfsClientConfigKeys}}.
2. As to the second comment about {{IOUtilsClient#cleanup}}, I'll address them
later after this patch.
> Move DFSIn/OutputStream and related classes to hadoop-hdfs-client
> -----------------------------------------------------------------
>
> Key: HDFS-8053
> URL: https://issues.apache.org/jira/browse/HDFS-8053
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: build
> Reporter: Haohui Mai
> Assignee: Mingliang Liu
> Attachments: HDFS-8053.000.patch
>
>
> This jira tracks the effort of moving the {{DFSInputStream}} and
> {{DFSOutputSream}} classes from {{hadoop-hdfs}} to {{hadoop-hdfs-client}}
> module.
> Guidelines:
> * As the {{DFSClient}} is heavily coupled to these two classes, we should
> move it together.
> * Related classes should be addressed in separate jiras if they're
> independent and complex enough.
> * The checkstyle warnings can be addressed in [HDFS-8979 |
> https://issues.apache.org/jira/browse/HDFS-8979]
> * Removing the _slf4j_ logger guards when calling {{LOG.debug()}} and
> {{LOG.trace()}} can be addressed in [HDFS-8971 |
> https://issues.apache.org/jira/browse/HDFS-8971].
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