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https://issues.apache.org/jira/browse/IMPALA-9332?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17186189#comment-17186189
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Sahil Takiar commented on IMPALA-9332:
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FYI there is a TODO to use this in HdfsTable#preloadPermissionsCache:
{code:java}
// TODO(todd): when HDFS-13616 (batch listing of multiple directories)
// is implemented, we could likely implement this with a single round
// trip. {code}
> Investigate and use the new batch listing API from HDFS-13616
> -------------------------------------------------------------
>
> Key: IMPALA-9332
> URL: https://issues.apache.org/jira/browse/IMPALA-9332
> Project: IMPALA
> Issue Type: Improvement
> Reporter: Vihang Karajgaonkar
> Assignee: Quanlong Huang
> Priority: Critical
>
> HDFS-13616 provides a new batch listing API which can potentially speed up
> the file listing on HDFS tables when reloading the table file metadata. We
> should investigate if this API is helpful for Impala and use it if there are
> any performance benefits.
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