Add support for S3 Access Points. This provides extra security as it ensures applications are not working with buckets belong to third parties. To bind a bucket to an access point, set the access point (ap) ARN, which must be done for each specific bucket, using the pattern fs.s3a.bucket.$BUCKET.accesspoint.arn = ARN * The global/bucket option `fs.s3a.accesspoint.required` to mandate that buckets must declare their access point. * This is not compatible with S3Guard. Consult the documentation for further details.
HADOOP-18048. [branch-3.3] Dockerfile_aarch64 build fails with fatal error: Python.h: No such file or directory (#3801)
HDFS-16043. Add markedDeleteBlockScrubberThread to delete blocks asynchronously (#3882). Contributed by Xiangyi Zhu.
YARN-8234. Improve RM system metrics publisher's performance by pushing events to timeline server in batch (#3793)
HADOOP-17925. BUILDING.txt should not encourage to activate docs profile on building binary artifacts. (#3509)
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