Improve acl operations performance.

Azure / data-lake-adlstool

Azure Data Lake Store command-line tools in Java

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Improve acl operations performance. #8

Closed akharit closed 4 years ago

akharit commented 5 years ago

This pr adds method to improve acl modify and remove performance in terms of memory usage if run on root with very high number of files. Also removes some dead code.

And change LinkedList to ArrayDeque or ArrayList where appropriate to take advantage of memory caching.