eredis_pool¶ ↑

eredis_pool is Pool of Redis clients, using eredis and poolboy.

eredis: github.com/jdavisp3/eredis

poolboy: github.com/devinus/poolboy

Setup¶ ↑

$ git clone git://github.com/hiroeorz/eredis_pool.git
$ cd eredis_pool
$ make get-deps
$ make

Testing¶ ↑

$ make check

Settings¶ ↑

edit src/eredis_pool.app.src

{application, eredis_pool,
 [
  {description, ""},
  {vsn, "1"},
  {registered, []},
  {applications, [
                  kernel,
                  stdlib
                 ]},
  {mod, { eredis_pool_app, []}},
  {env, [
          {pools, [
                   {default, [
                              {size, 10},
                              {max_overflow, 20}
                             ]}
                  ]}
        ]}
 ]}.

add new pools.

{env, [
        {pools, [
                 {default, [
                            {size, 10},
                            {max_overflow, 20}
                           ]},
                 {pool1, [
                            {size, 30},
                            {max_overflow, 20},
                            {host, "127.0.0.1"},
                            {port, 6379}
                           ]},
                 {pool2, [
                            {size, 20},
                            {max_overflow, 20},
                            {host, "127.0.0.1"},
                            {port, 6379},
                            {database, "user_db"},
                            {password, "abc"},
                            {reconnect_sleep, 100}
                           ]}
                ]}
      ]}

Examples¶ ↑

application start.

eredis_pool:start().
ok

key-value set and get

eredis_pool:q({global, dbsrv}, ["SET", "foo", "bar"]).
{ok,<<"OK">>}

eredis_pool:q({global, dbsrv}, ["GET", "foo"]).       
{ok,<<"bar">>}

Redis Pipeline

Pipeline = [["SET", a, "1"],
     ["LPUSH", b, "3"],
     ["LPUSH", b, "2"]].
eredis_pool:qp({global,dbsrv}, Pipeline).

create new pool with default settings.

eredis_pool:create_pool(pool1, 10).
{ok,<0.64.0>}

and omissible argments(host, port, database, password reconnect_sleep).

eredis_pool:create_pool(pool1, 10, "127.0.0.1", 6379, "user_db", "abc", 100).
{ok,<0.64.0>}

using new pool

eredis_pool:q(pool1, ["GET", "foo"]).
{ok,<<"bar">>}

delete pool

eredis_pool:delete_pool(pool1).    
ok

Other commands is here. redis.io/commands