From: Brian Aker <brian@tangent.org>
Date: Thu, 29 Nov 2007 21:38:46 +0000 (-0800)
Subject: Updating documentation on consistent hashing.
X-Git-Tag: 0.13~62
X-Git-Url: https://git.m6w6.name/?a=commitdiff_plain;h=c6f53a5dccd7ca93a369d2e4dffa846eacf265e2;p=m6w6%2Flibmemcached

Updating documentation on consistent hashing.
---

diff --git a/docs/memcached_behavior.pod b/docs/memcached_behavior.pod
index cd3288da..e6547785 100755
--- a/docs/memcached_behavior.pod
+++ b/docs/memcached_behavior.pod
@@ -51,6 +51,14 @@ environments).
 
 Makes the default hashing algorithm for keys use MD5. The value can be set to either MEMCACHED_HASH_DEFAULT, MEMCACHED_HASH_MD5, MEMCACHED_HASH_CRC, MEMCACHED_HASH_FNV1_64, MEMCACHED_HASH_FNV1A_64, MEMCACHED_HASH_FNV1_32, MEMCACHED_HASH_FNV1A_32, MEMCACHED_HASH_KETAMA. The behavior for all hashes but MEMCACHED_HASH_DEFAULT is identitical to the Java driver written by Dustin Sallings.
 
+=item MEMCACHED_BEHAVIOR_DISTRIBUTION
+
+Using this you can enable different means of distributing values to servers.
+The default method is MEMCACHED_DISTRIBUTION_MODULO. You can enable
+consistent hashing by setting MEMCACHED_DISTRIBUTION_CONSISTENT. 
+Consistent hashing delivers better distribution and allows servers to be 
+added to the cluster with minimal cache losses. 
+
 =item MEMCACHED_BEHAVIOR_CACHE_LOOKUPS
 
 Memcached can cache named lookups so that DNS lookups are made only once.