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https://issues.apache.org/jira/browse/HADOOP-18028?focusedWorklogId=687471&page=com.atlassian.jira.plugin.system.issuetabpanels:worklog-tabpanel#worklog-687471
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ASF GitHub Bot logged work on HADOOP-18028:
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Author: ASF GitHub Bot
Created on: 29/Nov/21 17:26
Start Date: 29/Nov/21 17:26
Worklog Time Spent: 10m
Work Description: bhalchandrap opened a new pull request #3736:
URL: https://github.com/apache/hadoop/pull/3736
### Description of PR
I work for Pinterest. I developed a technique for vastly improving read
throughput when reading from the S3 file system. It not only helps the
sequential read case (like reading a SequenceFile) but also significantly
improves read throughput of a random access case (like reading Parquet). This
technique has been very useful in significantly improving efficiency of the
data processing jobs at Pinterest.
I would like to contribute that feature to Apache Hadoop. More details on
this technique are available in this blog I wrote recently:
https://medium.com/pinterest-engineering/improving-efficiency-and-reducing-runtime-using-s3-read-optimization-b31da4b60fa0
### How was this patch tested?
Tested against S3 in us-east-1 region.
There are a small number of test failures (most within s3guard). I can
attach test output if it helps.
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Issue Time Tracking
-------------------
Worklog Id: (was: 687471)
Remaining Estimate: 0h
Time Spent: 10m
> improve S3 read speed using prefetching & caching
> -------------------------------------------------
>
> Key: HADOOP-18028
> URL: https://issues.apache.org/jira/browse/HADOOP-18028
> Project: Hadoop Common
> Issue Type: Improvement
> Components: fs/s3
> Reporter: Bhalchandra Pandit
> Priority: Major
> Labels: pull-request-available
> Time Spent: 10m
> Remaining Estimate: 0h
>
> I work for Pinterest. I developed a technique for vastly improving read
> throughput when reading from the S3 file system. It not only helps the
> sequential read case (like reading a SequenceFile) but also significantly
> improves read throughput of a random access case (like reading Parquet). This
> technique has been very useful in significantly improving efficiency of the
> data processing jobs at Pinterest.
>
> I would like to contribute that feature to Apache Hadoop. More details on
> this technique are available in this blog I wrote recently:
> [https://medium.com/pinterest-engineering/improving-efficiency-and-reducing-runtime-using-s3-read-optimization-b31da4b60fa0]
>
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