[jira] [Created] (AVRO-3594) FsInput to use openFile() API for cloud storage read performance

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

Steve Loughran created AVRO-3594:
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             Summary: FsInput to use openFile() API for cloud storage read performance
                 Key: AVRO-3594
                 URL: https://issues.apache.org/jira/browse/AVRO-3594
             Project: Apache Avro
          Issue Type: Improvement
          Components: java
    Affects Versions: 1.11.2
            Reporter: Steve Loughran


avro can now use the FileSystem.openFile() API to open a file on a hadoop filesystem connector (HADOOP-15229).

by setting the file length and fadvise policy through opt() calls, the clients can
* skip a HEAD request when opening a file
* optimise the ranges of GET request for sequential access, even in clusters where s3a has been configured to use random iO (which some hive clusters do)

filesystems/releases which don't recognise the options added in HADOOP-16202 will ignore them; the api will fall back to classic open(path) API call if the connector doesn't have a custom implementation.



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