Open HDFS file with FileStatus when readily available#3765
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This commit takes advantage of the changes in HDFS-17593 and Accumulo PR #6460 to reduce calls to the NameNode when opening a file if the FileStatus is already available. These changes won't compile until Accumulo 2.1.7 is released and this project is updated to use it. Likewise, to realize the performance optimization in Hadoop, a version of Hadoop that includes HDFS-17593 will need to be used (at least 3.5.1).
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This commit takes advantage of the changes in HDFS-17593 and Accumulo PR #6460 to reduce calls to the NameNode when opening a file if the FileStatus is already available.
These changes won't compile until Accumulo 2.1.7 is released and this project is updated to use it. Likewise, to realize the performance optimization in Hadoop, a version of Hadoop that includes HDFS-17593 will need to be used (at least 3.5.1).