steveloughran commented on pull request #3499:
URL: https://github.com/apache/hadoop/pull/3499#issuecomment-930298150
Quick review.
* needs filesystem spec
* and a contract test
* test to include
-overlapping ranges
-beyond file length
-negative values
-on heap and off heap buffers
* be good to have a PoC of the s3a one, so that we can happy the API xfers
to the store
* and some ORC/parquet branch which shows it can be used
* is there any API we'd want, e.g an fs command which does a single async
ranged get
```
hadoop fs ranged -start 0 -end 345 -out output.txt s3a://file
```
would be good for QE tests
* and we should have a path capability. Anything which supports seek will
also do this (so ftp won't)
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