Changeset 2ab823 for memcached_hash/ngx_http_upstream_memcached_hash_module.c

Timestamp:

04/12/08 17:10:40 (4 years ago)

Author:

Tomash Brechko <tomash.brechko@…>

Branches:

master-v0.7, master-v0.6, memcached_hash, upstream_count_limit

Children:

a1f117

Parents:

36798d

git-author:

Tomash Brechko <tomash.brechko@…> (04/12/08 16:36:01)

git-committer:

Tomash Brechko <tomash.brechko@…> (04/12/08 17:10:40)

Message:

Fix key distribution bug in compatible mode.

Because of accumulated rounding error some keys were mapped
to the different server than with Cache::Memcached. Now
we round toward zero, and depend on the fact that the error
can't be too big to cover the whole interval.

This change corresponds to commit
98421be6b7767f81c8d5b24d394d35ecd478fe2 in the
Cache::Memcached::Fast tree.

File:

• memcached_hash/ngx_http_upstream_memcached_hash_module.c (modified) (1 diff)

memcached_hash/ngx_http_upstream_memcached_hash_module.c

@@ -317 +317 @@
                 (memd->buckets[j].point
                  - ((uint64_t) memd->buckets[j].point * server[i].weight
-                    + total_weight / 2) / total_weight);
+                    / total_weight));
             }