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This is the the preview release of the HADOOP-18028 S3A performance input stream. It is still stabilizing, but ready to test. Contains HADOOP-18028. High performance S3A input stream (#4109) Contributed by Bhalchandra Pandit. HADOOP-18180. Replace use of twitter util-core with java futures (#4115) Contributed by PJ Fanning. HADOOP-18177. Document prefetching architecture. (#4205) Contributed by Ahmar Suhail HADOOP-18175. fix test failures with prefetching s3a input stream (#4212) Contributed by Monthon Klongklaew HADOOP-18231. S3A prefetching: fix failing tests & drain stream async. (#4386) * adds in new test for prefetching input stream * creates streamStats before opening stream * updates numBlocks calculation method * fixes ITestS3AOpenCost.testOpenFileLongerLength * drains stream async * fixes failing unit test Contributed by Ahmar Suhail HADOOP-18254. Disable S3A prefetching by default. (#4469) Contributed by Ahmar Suhail HADOOP-18190. Collect IOStatistics during S3A prefetching (#4458) This adds iOStatisticsConnection to the S3PrefetchingInputStream class, with new statistic names in StreamStatistics. This stream is not (yet) IOStatisticsContext aware. Contributed by Ahmar Suhail HADOOP-18379 rebase feature/HADOOP-18028-s3a-prefetch to trunk HADOOP-18187. Convert s3a prefetching to use JavaDoc for fields and enums. HADOOP-18318. Update class names to be clear they belong to S3A prefetching Contributed by Steve Loughran |
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