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ApsaraCache is a Redis branch originated from Alibaba Group.
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What is ApsaraCache ?

ApsaraCache is based on the Redis official release 4.0 and has many features and performance enhancements. ApsaraCache has proven to be very stable and efficient in production environment.

There are many features in ApsaraCache, the following two are included in this release and the other features will be gradually released in the subsequent, so stay tuned.

  • ApsaraCache supports two main protocols of Memcached: the classic ASCII, and the newer binary. You can use ApsaraCache just as Memcached, and no client code need to be modified. You can persist your data by using ApsaraCache in Memcached mode just like Redis.
  • In short connection scenario, ApsaraCache makes 30% performance increase compared with the vanilla version.

Building ApsaraCache

It is as simple as:

% make

Running ApsaraCache

In default, ApsaraCache run in Redis mode. If you want ApsaraCache to run in Memcached mode, just add option

   protocol  memcache

to redis.conf.

To run ApsaraCache with the default configuration just type:

% cd src
% ./redis-server

If you want to provide your redis.conf, you have to run it using an additional parameter (the path of the configuration file):

% cd src
% ./redis-server /path/to/redis.conf

It is possible to alter the ApsaraCache configuration by passing parameters directly as options using the command line. Examples:

% ./redis-server --port 9999 --slaveof 6379
% ./redis-server /etc/redis/6379.conf --loglevel debug

All the options in redis.conf are also supported as options using the command line, with exactly the same name.

Playing with ApsaraCache in Redis mode

You can use redis-cli to play with ApsaraCache. Start a redis-server instance, then in another terminal try the following:

% cd src
% ./redis-cli
redis> ping
redis> set foo bar
redis> get foo
redis> incr mycounter
(integer) 1
redis> incr mycounter
(integer) 2

You can find the list of all the available commands at

Playing with ApsaraCache in Memcached mode

You can use telnet to visit ApsaraCache(telnet use the classic ASCII protocol).

 % telnet your-host your-port(usually 11211)
   set key 10 3600 2
   get key
   VALUE key 10 2


Test new persistence mechanism and PITR

Test log based replication(AOF PSYNC)



See ApsaraCache Contributing Guide for more information.

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