best hashing algorithm

tencent2012 Pen question additional questionProblem Description: For example, a mobile friend network has n servers, in order to facilitate user access will be cached on the server data, so the user each time access to the best to maintain the same

In this paper, we share the principle of--consistent hashing algorithm and Java implementation, as well as the effect test, in order to realize some key techniques used in distributed task scheduling system.Background introductionConsistency hashing

Copy CodeThe code is as follows: APR_DECLARE_NONSTD (unsigned int) apr_hashfunc_default (const char *char_key, apr_ssize_t *klen) { unsigned int hash = 0; Const unsigned char *key = (const unsigned char *) Char_key; const unsigned char *p; apr_ssize_

Consistent hashing algorithm, when I first heard the name, it felt particularly advanced. And it tends to be related to distributed systems, which, to be exact, are distributed caches.In Web services, caching is a thing between a database and a

Java Advanced (57)-Phash image registration algorithm based on perceptual hashing algorithm?? After the submission of the graduation thesis, the teacher gave himself a task: image registration, that is, to give you two images, through the system to

1. IntroductionIn the traditional LSH, SSH, PCA-ITQ and other hashing algorithms, the essence is to use the ultra-flat face data points division, but in D-dimensional space, at least the need to d+1 a super plane to form a closed, compact area. The

Find--understanding hashing algorithms and implementing hash tables We like to use arrays for data lookup, because the array is a "random access" data structure, we can directly calculate the storage location of each array element based on the

We like to use arrays for data lookup, because the array is a "random access" data structure, we can directly calculate the storage location of each array element based on the starting address and the subscript values of the arrays, so its lookup

This blog is written because of a previous interview question:What happens to data on other machines if the memcached cluster needs to increase the machine or reduce the machine?Finally learned that the use of consistent hash algorithm can be solved,

PrefaceRecently reading Dr. Wu's > This book, got a lot of inspiration and thought, which mentioned a concept---information fingerprint. General normal people refer to this concept, the first thought of the word should be a hash mapping algorithm,