redis cluster
practice
1. create three instance
folder: 9001,9002,9003,folder
name as redis
instance port
2.Store
configuration files
redis-server,
redis.conf
to the three folders
3.Change
redis.conf file, keep below setting：
daemonize yes
port
9001
cluster-enabled yes
cluster-config-file
nodes.conf
cluster-node-timeout 5000
appendonly yes
note:
port need to change into
folder name
4.start
up the three instances：
zhaoguihuadediannao:~
zhaogh$ cd applications/dev/redis-cluster
zhaoguihuadediannao:redis-cluster
zhaogh$ cd 9001
zhaoguihuadediannao:9001
zhaogh$ ./redis-server ./redis.conf
zhaoguihuadediannao:9003
zhaogh$ cd ../9002
zhaoguihuadediannao:9002
zhaogh$ ./redis-server ./redis.conf
zhaoguihuadediannao:9002
zhaogh$ cd ../9003
zhaoguihuadediannao:9003
zhaogh$ ./redis-server ./redis.conf
zhaoguihuadediannao:9003
zhaogh$
5.create
clusters on the three instances
zhaoguihuadediannao:src
zhaogh$ ./redis-trib.rb create --replicas 0 127.0.0.1:9001 127.0.0.1:9002
127.0.0.1:9003
>>>
Creating cluster
Connecting
to node 127.0.0.1:9001: OK
Connecting
to node 127.0.0.1:9002: OK
Connecting
to node 127.0.0.1:9003: OK
>>>
Performing hash slots allocation on 3 nodes...
Using
3 masters:
127.0.0.1:9001
127.0.0.1:9002
127.0.0.1:9003
M:
92c9912cb1ccf657c886ecd839dd32c66efd8762 127.0.0.1:9001
slots:0-5460
(5461 slots) master
M:
b6d46fcb8b0e6ee373b09a4f2cbcec744d1a259b 127.0.0.1:9002
slots:5461-10922
(5462 slots) master
M:
44ab30c7c589ffb15b9b04dd827c72cfaeedacb2 127.0.0.1:9003
slots:10923-16383
(5461 slots) master
Can
I set the above configuration? (type ‘yes‘ to accept): yes
>>>
Nodes configuration updated
>>>
Assign a different config epoch to each node
>>>
Sending CLUSTER MEET messages to join the cluster
Waiting
for the cluster to join..
>>>
Performing Cluster Check (using node 127.0.0.1:9001)
M:
92c9912cb1ccf657c886ecd839dd32c66efd8762 127.0.0.1:9001
slots:0-5460
(5461 slots) master
M:
b6d46fcb8b0e6ee373b09a4f2cbcec744d1a259b 127.0.0.1:9002
slots:5461-10922
(5462 slots) master
M:
44ab30c7c589ffb15b9b04dd827c72cfaeedacb2 127.0.0.1:9003
slots:10923-16383
(5461 slots) master
[OK]
All nodes agree about slots configuration.
>>>
Check for open slots...
>>>
Check slots coverage...
[OK]
All 16384 slots covered.
zhaoguihuadediannao:src
zhaogh$
6.
command redis-trib.rb
needs ruby
env.,
may install it from https://rubygems.org/gems/redis
sudo
gem install redis-3.0.7.gem --local
7.
test in redis
client
zhaoguihuadediannao:src
zhaogh$ ./redis-cli -c -p 9001
127.0.0.1:9001>
get testkey001
->
Redirected to slot [12786] located at 127.0.0.1:9003
(nil)
127.0.0.1:9003>
set testkey002 testvalue002
->
Redirected to slot [401] located at 127.0.0.1:9001
OK
127.0.0.1:9001>
get testkey002
"testvalue002"
127.0.0.1:9001>
set testkey003 testvalue003
OK
127.0.0.1:9001>
8.
even connect 9001 port,
whenretrievetestkey001,redis cluster will auto redirect to
port9003 .
When
set 9003 with
testkey002,redis cluster auto redirect to
9001
source:
http://www.cnblogs.com/zhaoguihua/p/redis-005.html
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