Redis Cluster構築メモ
同一ホスト内にRedis Cluster構築してみたのでメモ。
version:Redis 3.2.6
インストール
動作確認のためなのでインストールの細かい設定は気にしない。適当に動作するように設定。
- ダウンロード
mkdir /redis wget http://download.redis.io/releases/redis-3.2.6.tar.gz tar zxvf redis-3.2.6.tar.gz make make install
- 起動スクリプト
Redisを複数起動するため起動スクリプト編集
# vim utils/redis_init_script REDISPORT=6379 → REDISPORT=$2
- 設定ファイル変更
6台構成で作成するため、6つ設定ファイル作成
vim /redis/redis-3.2.6/redis.conf 編集 daemonize no → yes port 6379 → PORTBANGOU protected-mode yes → no pidfile /var/run/redis_6379.pid → /var/run/redis_PORTBANGOU.pid dir ./ → /redis dbfilename dump.rdb dump_PORTBANGOU.rdb bind 127.0.0.1 → #bind 127.0.0.1 追加 cluster-enabled yes cluster-config-file nodes_PORTBANGOU.conf cluster-node-timeout 15000 cluster-require-full-coverage yes
- ポート番号7001 - 7006までの設定ファイル配置
# mkdir /etc/redis
# for ii in `seq 7001 7006`; do cat /redis/redis-3.2.6/redis.conf | sed -e "s/PORTBANGOU/${ii}/g" > /etc/redis/${ii}.conf ; done
# ls -ltr /etc/redis/
total 288
-rw-r--r-- 1 root root 46823 Dec 8 02:03 7001.conf
-rw-r--r-- 1 root root 46823 Dec 8 02:03 7002.conf
-rw-r--r-- 1 root root 46823 Dec 8 02:03 7003.conf
-rw-r--r-- 1 root root 46823 Dec 8 02:03 7004.conf
-rw-r--r-- 1 root root 46823 Dec 8 02:03 7005.conf
-rw-r--r-- 1 root root 46823 Dec 8 02:03 7006.conf
- 起動
# for ii in `seq 7001 7006`; do /redis/redis-3.2.6/utils/redis_init_script start $ii; done [root@80efe0c08de2 redis-3.2.6]# ps aux | grep redis root 3727 0.0 0.0 40788 2620 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7001 [cluster] root 3732 0.0 0.0 40788 2624 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7002 [cluster] root 3737 0.0 0.0 40788 2620 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7003 [cluster] root 3742 0.0 0.0 40788 2624 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7004 [cluster] root 3747 0.0 0.0 40788 2620 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7005 [cluster] root 3752 0.0 0.0 40788 2620 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7006 [cluster]
6台構成でクラスター作成する
↓を作成する。
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
- ポート番号7001,7003,7005をマスターとするクラスターを作成
# yum install rubygems -y # gem install redis # redis-trib.rb create 172.17.0.4:7001 172.17.0.4:7003 172.17.0.4:7005 # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481164053943 2 connected 5461-10922 abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481164054945 3 connected 10923-16383
- 各マスターに対してスレーブ作成
# redis-trib.rb add-node --slave 172.17.0.4:7002 172.17.0.4:7001 # redis-trib.rb add-node --slave 172.17.0.4:7004 172.17.0.4:7003 # redis-trib.rb add-node --slave 172.17.0.4:7006 172.17.0.4:7005 # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481164102029 1 connected 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481164103031 2 connected 5461-10922 e924857295ad43ccf9f2d792872e4d41293cab07 172.17.0.4:7004 slave 7d2e412e417f4d077bf50372f472f9103c480501 0 1481164105034 2 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481164104033 3 connected 10923-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481164100229 3 connected
これでクラスター作成完了。
ノードを追加してみる
- 今こういう状態
| slot | master | slave | master_nodeid | slave_nodeid |
|---|---|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 | 1b6d03569f09e6009a25b941887ac1275759d172 | c17a5b65fb4ab1b802995ef8769edbe3290d7a03 |
| 5461-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 | 7d2e412e417f4d077bf50372f472f9103c480501 | e924857295ad43ccf9f2d792872e4d41293cab07 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 | abe6531b02045b6e16cf51849ba6f7ff22300aa5 | 89bc1da3bc8417e4513d33d7a175fc48764ec70a |
ここに172.17.0.4:7007 と 172:17.0.1:7008を追加してリシャードさせる
- 7007と7008のノードの設定ファイル作成して起動
# for ii in 7007 7008; do cat /redis/redis-3.2.6/redis.conf | sed -e "s/PORTBANGOU/${ii}/g" > /etc/redis/${ii}.conf ; done
# ls /etc/redis
7001.conf 7002.conf 7003.conf 7004.conf 7005.conf 7006.conf 7007.conf 7008.conf
# for ii in 7007 7008; do /redis/redis-3.2.6/utils/redis_init_script start $ii; done
# ps aux | grep edis
root 3727 9.4 0.0 40788 3612 ? Ssl 02:26 1:14 /usr/local/bin/redis-server *:7001 [cluster]
root 3732 0.0 0.0 40788 3252 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7002 [cluster]
root 3737 0.1 0.0 40788 3604 ? Ssl 02:26 0:01 /usr/local/bin/redis-server *:7003 [cluster]
root 3742 0.0 0.0 40788 3228 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7004 [cluster]
root 3747 0.1 0.0 40788 3608 ? Ssl 02:26 0:01 /usr/local/bin/redis-server *:7005 [cluster]
root 3752 0.0 0.0 40788 3212 ? Ssl 02:26 0:00 /usr/local/bin/redis-server *:7006 [cluster]
root 22474 0.0 0.0 36692 2560 ? Ssl 02:39 0:00 /usr/local/bin/redis-server *:7007 [cluster]
root 22479 0.0 0.0 36692 2568 ? Ssl 02:39 0:00 /usr/local/bin/redis-server *:7008 [cluster]
- クラスターに追加する
ここではまだハッシュスロットの割当はない
# redis-trib.rb add-node 172.17.0.4:7007 172.17.0.4:7001 # redis-trib.rb add-node --slave 172.17.0.4:7008 172.17.0.4:7007 # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481164803460 1 connected 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481164798952 2 connected 5461-10922 e924857295ad43ccf9f2d792872e4d41293cab07 172.17.0.4:7004 slave 7d2e412e417f4d077bf50372f472f9103c480501 0 1481164805463 2 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481164801455 3 connected 10923-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481164804460 3 connected 0c55b1cba923d063cb7566b80f098c7dddea8f96 172.17.0.4:7007 master - 0 1481164802958 0 connected 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 172.17.0.4:7008 slave 0c55b1cba923d063cb7566b80f098c7dddea8f96 0 1481164802457 0 connected
- リシャード
- 16384のハッシュスロットに分かれてるので４シャードで割る。16384/4=4096
- 追加したマスター(port:7007)のノードIDを指定する
# redis-trib.rb reshard 172.17.0.4:7007 How many slots do you want to move (from 1 to 16384)? 4096 What is the receiving node ID? 0c55b1cba923d063cb7566b80f098c7dddea8f96 Please enter all the source node IDs. Type 'all' to use all the nodes as source nodes for the hash slots. Type 'done' once you entered all the source nodes IDs. Source node #1:all # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 1 connected 1365-5460 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481165063925 1 connected 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481165061923 2 connected 6827-10922 e924857295ad43ccf9f2d792872e4d41293cab07 172.17.0.4:7004 slave 7d2e412e417f4d077bf50372f472f9103c480501 0 1481165061923 2 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481165060921 3 connected 12288-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481165062924 3 connected 0c55b1cba923d063cb7566b80f098c7dddea8f96 172.17.0.4:7007 master - 0 1481165058918 4 connected 0-1364 5461-6826 10923-12287 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 172.17.0.4:7008 slave 0c55b1cba923d063cb7566b80f098c7dddea8f96 0 1481165058918 4 connected
| slot | master | slave |
|---|---|---|
| 1365-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 6827-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 |
| 12288-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
| 0-1364 5461-6826 10923-12287 | 172.17.0.4:7007 | 172.17.0.4:7008 |
完了
ノードを撤去してみる
- 今の状態
| slot | master | slave | master_nodeid | slave_nodeid |
|---|---|---|---|---|
| 1365-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 | 1b6d03569f09e6009a25b941887ac1275759d172 | c17a5b65fb4ab1b802995ef8769edbe3290d7a03 |
| 6827-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 | 7d2e412e417f4d077bf50372f472f9103c480501 | e924857295ad43ccf9f2d792872e4d41293cab07 |
| 12288-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 | abe6531b02045b6e16cf51849ba6f7ff22300aa5 | 89bc1da3bc8417e4513d33d7a175fc48764ec70a |
| 0-1364 5461-6826 10923-12287 | 172.17.0.4:7007 | 172.17.0.4:7008 | 0c55b1cba923d063cb7566b80f098c7dddea8f96 | 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 |
ここから172.17.0.4:7003と172.17.0.4:7004を取り除く
今のハッシュスロットの割合はノード単位で4096なので4096/3=1365,1365,1366でそれぞれのノードに割り振る
- 7001のノードに割当
# redis-trib.rb reshard --from 7d2e412e417f4d077bf50372f472f9103c480501 --to 1b6d03569f09e6009a25b941887ac1275759d172 --slots 1365 --yes 172.17.0.4:7001 # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 5 connected 1365-5460 6827-8191 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481165235210 5 connected 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481165233208 2 connected 8192-10922 e924857295ad43ccf9f2d792872e4d41293cab07 172.17.0.4:7004 slave 7d2e412e417f4d077bf50372f472f9103c480501 0 1481165236211 2 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481165236713 3 connected 12288-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481165238213 3 connected 0c55b1cba923d063cb7566b80f098c7dddea8f96 172.17.0.4:7007 master - 0 1481165237212 4 connected 0-1364 5461-6826 10923-12287 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 172.17.0.4:7008 slave 0c55b1cba923d063cb7566b80f098c7dddea8f96 0 1481165234209 4 connected
- 7005のノードに割当
# redis-trib.rb reshard --from 7d2e412e417f4d077bf50372f472f9103c480501 --to abe6531b02045b6e16cf51849ba6f7ff22300aa5 --slots 1365 --yes 172.17.0.4:7005 # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 5 connected 1365-5460 6827-8191 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481165279296 5 connected 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481165282804 2 connected 9557-10922 e924857295ad43ccf9f2d792872e4d41293cab07 172.17.0.4:7004 slave 7d2e412e417f4d077bf50372f472f9103c480501 0 1481165283305 2 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481165278294 6 connected 8192-9556 12288-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481165282303 6 connected 0c55b1cba923d063cb7566b80f098c7dddea8f96 172.17.0.4:7007 master - 0 1481165284306 4 connected 0-1364 5461-6826 10923-12287 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 172.17.0.4:7008 slave 0c55b1cba923d063cb7566b80f098c7dddea8f96 0 1481165281300 4 connected
- 7007のノードに割当
# redis-trib.rb reshard --from 7d2e412e417f4d077bf50372f472f9103c480501 --to 0c55b1cba923d063cb7566b80f098c7dddea8f96 --slots 1366 --yes 172.17.0.4:7007 # redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 5 connected 1365-5460 6827-8191 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481165327396 5 connected 7d2e412e417f4d077bf50372f472f9103c480501 172.17.0.4:7003 master - 0 1481165323386 2 connected e924857295ad43ccf9f2d792872e4d41293cab07 172.17.0.4:7004 slave 7d2e412e417f4d077bf50372f472f9103c480501 0 1481165324390 2 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481165322386 6 connected 8192-9556 12288-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481165325392 6 connected 0c55b1cba923d063cb7566b80f098c7dddea8f96 172.17.0.4:7007 master - 0 1481165321383 7 connected 0-1364 5461-6826 9557-12287 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 172.17.0.4:7008 slave 0c55b1cba923d063cb7566b80f098c7dddea8f96 0 1481165326394 7 connected
| 元slot | reshard1回目slot | reshard2回目slot | reshard3回目slot | master | slave |
|---|---|---|---|---|---|
| 1365-5460 | 1365-5460 6827-8191 | 1365-5460 6827-8191 | 1365-5460 6827-8191 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 6827-10922 | 8192-10922 | 9557-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 | |
| 12288-16383 | 12288-16383 | 8192-9556 12288-16383 | 8192-9556 12288-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
| 0-1364 5461-6826 10923-12287 | 0-1364 5461-6826 10923-12287 | 0-1364 5461-6826 10923-12287 | 0-1364 5461-6826 9557-12287 | 172.17.0.4:7007 | 172.17.0.4:7008 |
7003と7004のノードへのハッシュスロットの割当がなくなった。
- ノードの削除
# redis-trib.rb del-node 172.17.0.4:7004 e924857295ad43ccf9f2d792872e4d41293cab07 # redis-trib.rb del-node 172.17.0.4:7003 7d2e412e417f4d077bf50372f472f9103c480501
# redis-cli -p 7001 cluster nodes | sort -k2 1b6d03569f09e6009a25b941887ac1275759d172 172.17.0.4:7001 myself,master - 0 0 5 connected 1365-5460 6827-8191 c17a5b65fb4ab1b802995ef8769edbe3290d7a03 172.17.0.4:7002 slave 1b6d03569f09e6009a25b941887ac1275759d172 0 1481165531737 5 connected abe6531b02045b6e16cf51849ba6f7ff22300aa5 172.17.0.4:7005 master - 0 1481165530735 6 connected 8192-9556 12288-16383 89bc1da3bc8417e4513d33d7a175fc48764ec70a 172.17.0.4:7006 slave abe6531b02045b6e16cf51849ba6f7ff22300aa5 0 1481165529732 6 connected 0c55b1cba923d063cb7566b80f098c7dddea8f96 172.17.0.4:7007 master - 0 1481165532739 7 connected 0-1364 5461-6826 9557-12287 3ed3899c6ba3ca1371235f91cd8502297c3a46b9 172.17.0.4:7008 slave 0c55b1cba923d063cb7566b80f098c7dddea8f96 0 1481165533739 7 connected
| slot | master | slave |
|---|---|---|
| 1365-5460 6827-8191 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 8192-9556 12288-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
| 0-1364 5461-6826 9557-12287 | 172.17.0.4:7007 | 172.17.0.4:7008 |
ノードを移動してみる
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
↓こうしたい
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7007 | 172.17.0.4:7008 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
- 事前準備
先程作成したクラスター構成を作り直す
ノード停止 # for ii in `seq 7001 7008`; do /redis/redis-3.2.6/utils/redis_init_script stop $ii; done rdbファイルとクラスター構成ファイルを削除する # ls /redis/ dump_7001.rdb dump_7002.rdb dump_7003.rdb dump_7004.rdb dump_7005.rdb dump_7006.rdb dump_7007.rdb dump_7008.rdb nodes_7001.conf nodes_7002.conf nodes_7003.conf nodes_7004.conf nodes_7005.conf nodes_7006.conf nodes_7007.conf nodes_7008.conf redis-3.2.6 redis-3.2.6.tar.gz # rm -f /redis/*.rdb /redis/nodes*.conf
6台構成でクラスター作成するに戻って再作成
こういう状態にする。ポート7007と7008のノードはクラスターに参加していない状態。
# redis-cli -p 7001 cluster nodes | sort -k2 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 f7b36ed09baeae6d65004e066f11c1b0552cffe7 172.17.0.4:7002 slave 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 0 1481166155471 1 connected 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 172.17.0.4:7003 master - 0 1481166157474 2 connected 5461-10922 77d3ce18b67647392b753bbbf1148870b3581d42 172.17.0.4:7004 slave 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 0 1481166156472 2 connected c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 172.17.0.4:7005 master - 0 1481166152466 3 connected 10923-16383 40d5b8e1241560b53d114b4e363935de66fe5646 172.17.0.4:7006 slave c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 0 1481166156973 3 connected # ps aux | grep redis root 22562 0.0 0.0 38740 3092 ? Rsl 03:01 0:00 /usr/local/bin/redis-server *:7001 [cluster] root 22565 0.0 0.0 36692 2840 ? Ssl 03:01 0:00 /usr/local/bin/redis-server *:7002 [cluster] root 22572 0.0 0.0 38740 3036 ? Ssl 03:01 0:00 /usr/local/bin/redis-server *:7003 [cluster] root 22576 0.0 0.0 36692 2828 ? Ssl 03:01 0:00 /usr/local/bin/redis-server *:7004 [cluster] root 22582 0.0 0.0 38740 3056 ? Ssl 03:01 0:00 /usr/local/bin/redis-server *:7005 [cluster] root 22585 0.0 0.0 36692 2816 ? Ssl 03:01 0:00 /usr/local/bin/redis-server *:7006 [cluster] root 22604 0.0 0.0 36692 2564 ? Ssl 03:02 0:00 /usr/local/bin/redis-server *:7007 [cluster] root 22607 0.0 0.0 36692 2564 ? Ssl 03:02 0:00 /usr/local/bin/redis-server *:7008 [cluster] root 22615 0.0 0.0 6440 696 ? S+ 03:03 0:00 grep redis
- 7007のノードを7003のノードのスレーブにする
# redis-trib.rb add-node --slave 172.17.0.4:7007 172.17.0.4:7003 # redis-cli -p 7001 cluster nodes | sort -k2 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 f7b36ed09baeae6d65004e066f11c1b0552cffe7 172.17.0.4:7002 slave 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 0 1481166293708 1 connected 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 172.17.0.4:7003 master - 0 1481166294710 2 connected 5461-10922 77d3ce18b67647392b753bbbf1148870b3581d42 172.17.0.4:7004 slave 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 0 1481166290702 2 connected c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 172.17.0.4:7005 master - 0 1481166291704 3 connected 10923-16383 40d5b8e1241560b53d114b4e363935de66fe5646 172.17.0.4:7006 slave c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 0 1481166290201 3 connected eaa0636eaa96d62b20a6440d132ec57addf07109 172.17.0.4:7007 slave 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 0 1481166289700 2 connected 追加された
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7003 | 172.17.0.4:7004 |
| 172.17.0.4:7007 | ||
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
- 7004のノードを抜く
# redis-trib.rb del-node 127.0.0.1:7004 77d3ce18b67647392b753bbbf1148870b3581d42 # redis-cli -p 7001 cluster nodes | sort -k2 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 f7b36ed09baeae6d65004e066f11c1b0552cffe7 172.17.0.4:7002 slave 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 0 1481166368835 1 connected 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 172.17.0.4:7003 master - 0 1481166366834 2 connected 5461-10922 c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 172.17.0.4:7005 master - 0 1481166365831 3 connected 10923-16383 40d5b8e1241560b53d114b4e363935de66fe5646 172.17.0.4:7006 slave c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 0 1481166369838 3 connected eaa0636eaa96d62b20a6440d132ec57addf07109 172.17.0.4:7007 slave 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 0 1481166370839 2 connected
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7003 | 172.17.0.4:7007 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
- 7003のマスターノード - 7007のスレーブノードをフェールオーバする スレーブ側で実施する
# redis-cli -p 7007 cluster failover # redis-cli -p 7001 cluster nodes | sort -k2 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 f7b36ed09baeae6d65004e066f11c1b0552cffe7 172.17.0.4:7002 slave 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 0 1481166471012 1 connected 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 172.17.0.4:7003 slave eaa0636eaa96d62b20a6440d132ec57addf07109 0 1481166467004 4 connected c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 172.17.0.4:7005 master - 0 1481166470010 3 connected 10923-16383 40d5b8e1241560b53d114b4e363935de66fe5646 172.17.0.4:7006 slave c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 0 1481166469008 3 connected eaa0636eaa96d62b20a6440d132ec57addf07109 172.17.0.4:7007 master - 0 1481166468006 4 connected 5461-10922
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7007 | 172.17.0.4:7003 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
- 7008のノードを7007のノードのスレーブにする
# redis-trib.rb add-node --slave 172.17.0.4:7008 172.17.0.4:7007 # redis-cli -p 7001 cluster nodes | sort -k2 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 f7b36ed09baeae6d65004e066f11c1b0552cffe7 172.17.0.4:7002 slave 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 0 1481166527103 1 connected 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 172.17.0.4:7003 slave eaa0636eaa96d62b20a6440d132ec57addf07109 0 1481166528104 4 connected c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 172.17.0.4:7005 master - 0 1481166526602 3 connected 10923-16383 40d5b8e1241560b53d114b4e363935de66fe5646 172.17.0.4:7006 slave c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 0 1481166524598 3 connected eaa0636eaa96d62b20a6440d132ec57addf07109 172.17.0.4:7007 master - 0 1481166522094 4 connected 5461-10922 13a4814123df21a1ead7616f2e801e2d47749396 172.17.0.4:7008 slave eaa0636eaa96d62b20a6440d132ec57addf07109 0 1481166529106 4 connected
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7007 | 172.17.0.4:7003 |
| 172.17.0.4:7008 | ||
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
- 7003のノードを抜く。
# redis-trib.rb del-node 127.0.0.1:7003 269d5a679b3bc24c47ecd0fc5cea911fbcc329b2 # redis-cli -p 7001 cluster nodes | sort -k2 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 172.17.0.4:7001 myself,master - 0 0 1 connected 0-5460 f7b36ed09baeae6d65004e066f11c1b0552cffe7 172.17.0.4:7002 slave 550a91f2f1a88e5630ee8e6c3d1d61970715de2b 0 1481166593220 1 connected c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 172.17.0.4:7005 master - 0 1481166587711 3 connected 10923-16383 40d5b8e1241560b53d114b4e363935de66fe5646 172.17.0.4:7006 slave c2fa1ae4060ad07ca30ea0c762e1e32d6e480360 0 1481166592219 3 connected eaa0636eaa96d62b20a6440d132ec57addf07109 172.17.0.4:7007 master - 0 1481166593721 4 connected 5461-10922 13a4814123df21a1ead7616f2e801e2d47749396 172.17.0.4:7008 slave eaa0636eaa96d62b20a6440d132ec57addf07109 0 1481166594223 4 connected
| slot | master | slave |
|---|---|---|
| 0-5460 | 172.17.0.4:7001 | 172.17.0.4:7002 |
| 5461-10922 | 172.17.0.4:7007 | 172.17.0.4:7008 |
| 10923-16383 | 172.17.0.4:7005 | 172.17.0.4:7006 |
