steveloughran opened a new issue, #15353: URL: https://github.com/apache/iceberg/issues/15353
### Feature Request / Improvement The class HadoopFileIO uses the hadoop 2 APIs for opening and creating files. By moving to the newer createFile/openFile APIs and passing in information, it should be possible to * Eliminate head requests when opening files (s3a, abfs) * Switch the cloud connector to an optimal read policy for the known file type (random, sequential,..) (s3a, gcs) * Have the s3a connector skip checks that creating a file won't overwrite a directory. This is consistent with S3OutputFile and relies on iceberg creating unique filenames, or at least not creating files above other objects. There are some other minor tunings. Constraints 1. All of this shall use APIs in Hadoop 3.3.5 so there's no need to use reflection for spark 3.4+ use. 2. There shall not be any adverse consequences when running against hdfs or local fs. ### Query engine None ### Willingness to contribute - [ ] I can contribute this improvement/feature independently - [ ] I would be willing to contribute this improvement/feature with guidance from the Iceberg community - [ ] I cannot contribute this improvement/feature at this time -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected] --------------------------------------------------------------------- To unsubscribe, e-mail: [email protected] For additional commands, e-mail: [email protected]
