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https://issues.apache.org/jira/browse/PARQUET-2374?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17854478#comment-17854478
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Parth Chandra commented on PARQUET-2374:
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Getting the File IO stats would be immensely useful (especially the cloud
storage use cases). If we can get this into Parquet via the
ParqquetMetricsCallback interface, I can work on getting this into Spark. Still
waiting for Spark to upgrade Parquet though.
> Add metrics support for parquet file reader
> -------------------------------------------
>
> Key: PARQUET-2374
> URL: https://issues.apache.org/jira/browse/PARQUET-2374
> Project: Parquet
> Issue Type: Improvement
> Components: parquet-mr
> Affects Versions: 1.13.1
> Reporter: Parth Chandra
> Assignee: Parth Chandra
> Priority: Major
> Fix For: 1.14.0
>
>
> ParquetFileReader is used by many engines - Hadoop, Spark among them. These
> engines report various metrics to measure performance in different
> environments and it is usually useful to be able to get low level metrics out
> of the file reader and writers.
> It would be very useful to allow a simple interface to report the metrics.
> Callers can then implement the interface to record the metrics in any
> subsystem they choose.
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