MurmurHash - Wikipedia

MurmurHash is a non-cryptographic hash function suitable for general hash-based lookup.[1][2][3] It was created by Austin Appleby in 2008[4] and, as of 8 January 2016,[5] is hosted on GitHub along with its test suite named SMHasher. It also exists in a number of variants,[6] all of which have been released into the public domain. The name comes from two basic operations, multiply (MU) and rotate (

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"a non-cryptographic hash function suitable for general hash-based lookup"hadoopのハッシュのデフォルト値