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https://issues.apache.org/jira/browse/HADOOP-13650?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15706113#comment-15706113
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Allen Wittenauer commented on HADOOP-13650:
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Based upon this patch, you don't need separate scripts/separate command.
There's not enough here to warrant polluting the shell path. (The single case
statement is a dead give away.) Use a shell profile to add the s3guard command
to bin/hadoop dynamically. See, e.g., distcp, hadoop-archives, etc.
Also:
{code}
if declare -f hadoop_subcommand_
{code}
(plus a few other spots)
This isn't bin/hadoop, so doing this will conflict.
{code}
+hadoop_debug "Appending hadoop-aws jars"
+hadoop_add_classpath "${HADOOP_TOOLS_HOME}/${HADOOP_TOOLS_LIB_JARS_DIR}/*"
{code}
This adds way way way more than you need and should be specifically avoided in
trunk. So don't do that. Besides, if hadoop-aws is enabled as a supported tool,
the AWS bits are already present in the classpath. If you want to forcibly
load them regardless of the HADOOP_OPTIONAL_TOOLS setting, then call
_hadoop-aws_hadoop_classpath directly. If the hadoop-aws support has been
already added, hadoop_add_classpath will skip adding the jars a second time.
> S3Guard: Provide command line tools to manipulate metadata store.
> -----------------------------------------------------------------
>
> Key: HADOOP-13650
> URL: https://issues.apache.org/jira/browse/HADOOP-13650
> Project: Hadoop Common
> Issue Type: Sub-task
> Components: fs/s3
> Reporter: Lei (Eddy) Xu
> Assignee: Lei (Eddy) Xu
> Attachments: HADOOP-13650-HADOOP-13345.000.patch,
> HADOOP-13650-HADOOP-13345.001.patch, HADOOP-13650-HADOOP-13345.002.patch
>
>
> Similar systems like EMRFS has the CLI tools to manipulate the metadata
> store, i.e., create or delete metadata store, or {{import}}, {{sync}} the
> file metadata between metadata store and S3.
> http://docs.aws.amazon.com//ElasticMapReduce/latest/ReleaseGuide/emrfs-cli-reference.html
> S3Guard should offer similar functionality.
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