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https://issues.apache.org/jira/browse/HADOOP-16077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16763188#comment-16763188
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Brahma Reddy Battula commented on HADOOP-16077:
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{quote}bq. The extra RPC case shall come only in case of if -sp and -e
parameter are used together. Else it shall be only one . And Introducing in the
getContentSummary isn't a problem but thats part of Hadoop Common and usually
we should prefer to refrain from introducing into the common segment just for
pourpose of HDFS and moreover getContentSummary is quite an heavy operation as
compared to getStoaragePolicy. For ec policy it was added in the content
summary since we don't have getECpolicy in FileSystem it is only in HDFS.
{quote}
Already getContentSummary() is called for EC policy, so it will not be
additional. And ECPolicy added in contensummary for Policy summarization(see
HDFS-11647).
{quote}The big enemy there is someone doing a "hadoop fs -ls -sp /" .
{quote}
I was talking about this recursive call only.
> Add an option in ls command to include storage policy
> -----------------------------------------------------
>
> Key: HADOOP-16077
> URL: https://issues.apache.org/jira/browse/HADOOP-16077
> Project: Hadoop Common
> Issue Type: Improvement
> Components: common
> Affects Versions: 3.3.0
> Reporter: Ayush Saxena
> Assignee: Ayush Saxena
> Priority: Major
> Attachments: HADOOP-16077-01.patch, HADOOP-16077-02.patch,
> HADOOP-16077-03.patch, HADOOP-16077-04.patch, HADOOP-16077-05.patch,
> HADOOP-16077-06.patch, HADOOP-16077-07.patch
>
>
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