snvijaya opened a new pull request #1898: Report read-ahead error back URL: https://github.com/apache/hadoop/pull/1898 Currently errors in read-ahead are silently ignored, thus failing to highlight any issues and causing slowness to the overall read request. Any new read request in-turn triggers n num of read-aheads and all of them will silently fail. This PR will report back error from the read-ahead issued by the active read call. Also, cause subsequent reads to only retry the respective read position based on the failure seen for the previous read-ahead failure on same position.
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