[jira] [Commented] (HADOOP-19559) S3A: Analytics accelerator for S3 to be enabled by default

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/HADOOP-19559?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=18004148#comment-18004148 ] 

ASF GitHub Bot commented on HADOOP-19559:
-----------------------------------------

fuatbasik commented on code in PR #7763:
URL: https://github.com/apache/hadoop/pull/7763#discussion_r2195000463


##########
hadoop-tools/hadoop-aws/src/main/java/org/apache/hadoop/fs/s3a/impl/streams/AnalyticsRequestCallback.java:
##########
@@ -0,0 +1,30 @@
+package org.apache.hadoop.fs.s3a.impl.streams;

Review Comment:
   we probably can now resolve this. 





> S3A: Analytics accelerator for S3 to be enabled by default
> ----------------------------------------------------------
>
>                 Key: HADOOP-19559
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19559
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: fs/s3
>    Affects Versions: 3.5.0, 3.4.2
>            Reporter: Ahmar Suhail
>            Priority: Major
>              Labels: pull-request-available
>
> Make "analytics" the default input stream in S3A. 
> Goals
> * Parquet performance through applications running queries over the data (spark etc)
> * Performance for other formats good as/better than today. Examples: avro manifests in iceberg, ORC in hive/spark
> * Performance for other uses as good as today (whole-file/sequential reads of parquet data in distcp etc)
> * better resilience to bad uses (incomplete reads not retaining http streams, buffer allocations on long-retained data)
> * efficient on applications like Impala, which caches parquet footers itself, and uses unbuffer() to discard all stream-side resources. Maybe just throw alway all state on unbuffer() and stop trying to be sophisticated, or support some new openFile flag which can be used to disable footer parsing



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