https://bz.apache.org/bugzilla/show_bug.cgi?id=66209

--- Comment #6 from John Engebretson <jeng...@amazon.com> ---
(In reply to Vladimir Sitnikov from comment #5)
> As the set of entries in Jar is known in advance, and the entries are not
> modified, Xor Filter might be better.
> 
> See 
> http://web.stanford.edu/class/archive/cs/cs166/cs166.1216/lectures/13/
> Slides13.pdf#page=49
> 
> https://github.com/FastFilter/xorfilter

Thank you for the links!  It appears to me that Xor has lower memory usage but
increases the cost of a lookup.  For our applications, that is the wrong
tradeoff, however it may work as another value of "archiveIndexing".

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