Aster is a lightweight, fast but powerful cache proxy written in rust.
It supports memcache/redis singleton/redis cluster protocol all in one. Aster can proxy with two models:
- proxy mode: the same as twemproxy.
- cluster mode: proxy for redis cluster. You can use non-cluster redis client access the redis cluster.(Inspired with Corvus)
cargo build --all --release && RUST_LOG=libaster=info RUST_BACKTRACE=1 ./target/release/aster default.toml[[clusters]]
# name of the cluster. Each cluster means one front-end port.
name="test-redis-cluster"
# listen_addr means the cluster font end serve address.
listen_addr="0.0.0.0:9001"
# cache_type only support memcache|redis|redis_cluster
cache_type="redis_cluster"
# servers means cache backend. support two format:
# for cache_type is memcache or redis, you can set it as:
#
# servers = [
# "127.0.0.1:7001:10 redis-1",
# "127.0.0.1:7002:10 redis-2",
# "127.0.0.1:7003:10 redis-3"]
#
# as you can see, the format is consisted with:
#
# "${addr}:hash_weight ${node_alias}"
#
# And, for redis_cluster you can set the item as:
#
# servers = ["127.0.0.1:7000", "127.0.0.1:7001"]
#
# which means the seed nodes to connect to redis cluster.
servers = ["127.0.0.1:7000", "127.0.0.1:7001"]
# Work thread number, it's suggested as the number of your cpu(hyper-thread) number.
thread = 1
# ReadTimeout is the socket read timeout which effects all in the socket in millisecond
read_timeout = 2000
# WriteTimeout is the socket write timeout which effects all in the socket in millisecond
write_timeout = 2000
############################# Cluster Mode Special #######################################################
# fetch means fetch interval for backend cluster to keep cluster info become newer.
# default 10 * 60 seconds
fetch = 600
# read_from_slave is the feature make slave balanced readed by client and ignore side effects.
read_from_slave = true
############################# Proxy Mode Special #######################################################
# ping_fail_limit means when ping fail reach the limit number, the node will be ejected from the cluster
# until the ping is ok in future.
# if ping_fali_limit == 0, means that close the ping eject feature.
ping_fail_limit=3
# ping_interval means the interval of each ping was send into backend node in millisecond.
ping_interval=10000
see CHANGELOG.md