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https://issues.apache.org/jira/browse/TEZ-3540?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15709575#comment-15709575
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Hitesh Shah commented on TEZ-3540:
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How useful is this when the FS is an object store such as s3, azure wasb/adls,
etc?
> Eliminate inefficient use of FileSystem API
> -------------------------------------------
>
> Key: TEZ-3540
> URL: https://issues.apache.org/jira/browse/TEZ-3540
> Project: Apache Tez
> Issue Type: Bug
> Reporter: Zhiyuan Yang
> Assignee: Zhiyuan Yang
> Attachments: TEZ-3540.1.patch
>
>
> As said in HADOOP-13427, there are certain inefficient call pattern on
> FileSystem like exists+open, exists+delete causing unnecessary RPC call to
> HDFS. Let's refactor them.
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