[jira] [Updated] (HADOOP-19131) WrappedIO to export modern filesystem/statistics APIs in a reflection friendly form

["Steve Loughran (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HADOOP-19131?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Loughran updated HADOOP-19131:
------------------------------------
    Summary: WrappedIO to export modern filesystem/statistics APIs in a reflection friendly form  (was: Assist reflection IO with WrappedOperations class)

> WrappedIO to export modern filesystem/statistics APIs in a reflection friendly form
> -----------------------------------------------------------------------------------
>
>                 Key: HADOOP-19131
>                 URL: https://issues.apache.org/jira/browse/HADOOP-19131
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: fs, fs/azure, fs/s3
>    Affects Versions: 3.4.0
>            Reporter: Steve Loughran
>            Assignee: Steve Loughran
>            Priority: Major
>              Labels: pull-request-available
>
> parquet, avro etc are still stuck building with older hadoop releases. 
> This makes using new APIs hard (PARQUET-2171) and means that APIs which are 5 years old such as HADOOP-15229 just aren't picked up.
> This lack of openFIle() adoption hurts working with files in cloud storage as
> * extra HEAD requests are made
> * read policies can't be explicitly set
> * split start/end can't be passed down
> Proposed
> # create class org.apache.hadoop.io.WrappedOperations
> # add methods to wrap the apis
> # test in contract tests via reflection loading -verifies we have done it properly.



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