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Posted to common-issues@hadoop.apache.org by "Bhalchandra Pandit (Jira)" <ji...@apache.org> on 2021/11/29 16:13:00 UTC
[jira] [Created] (HADOOP-18028) improve S3 read speed using prefetching & caching
Bhalchandra Pandit created HADOOP-18028:
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Summary: 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
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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