文章简单介绍基于redis-shake的redis数据同步，该工具基于每个节点同步数据，即每个主节点需同步一次，才能完成整个redis集群的数据同步。
1、redis节点操作
### 查看redis版本
./bin/redis-server --version
### 登录redis
./bin/redis-cli -c -h *.*.*.142 -p 17001 -a '******'
### 查看数据量
> info keyspace
### 批量删除keys
./bin/redis-cli -c -h *.*.*.142 -p 17001 -a '******' keys "*@_@*" | xargs -r -t -n1 ./bin/redis-cli -c -h *.*.*.142 -p 17001 -a '******' del
./bin/redis-cli -c -h *.*.*.144 -p 17001 -a '******' keys "auth-dw*" | xargs -r -t -n1 ./bin/redis-cli -c -h *.*.*.144 -p 17001 -a '******' del
### 删除所有keys
> flushall
### 查看set类型变量的内容
smembers "auth-ds:446fc...@24cfd7b0..."
2、redis-shake 配置与启动
编辑配置文件 vim ./sync.toml
type = "sync"
[source]
version = 7.0 # redis version, such as 2.8, 4.0, 5.0, 6.0, 6.2, 7.0, ...
address = "*.*.*.93:17001"
username = "" # keep empty if not using ACL
password = "******" # keep empty if no authentication is required
tls = false
elasticache_psync = "" # using when source is ElastiCache. ref: https://github.com/alibaba/RedisShake/issues/373
[target]
type = "standalone" # "standalone" or "cluster"
version = 7.0 # redis version, such as 2.8, 4.0, 5.0, 6.0, 6.2, 7.0, ...
# When the target is a cluster, write the address of one of the nodes.
# redis-shake will obtain other nodes through the `cluster nodes` command.
address = "*.*.*.142:17001"
username = "" # keep empty if not using ACL
password = "******" # keep empty if no authentication is required
tls = false
[advanced]
dir = "data"
ncpu = 4 # runtime.GOMAXPROCS, 0 means use runtime.NumCPU() cpu cores
pprof_port = 0 # pprof port, 0 means disable
metrics_port = 0 # metric port, 0 means disable
log_file = "redis-shake.log"
log_level = "info" # debug, info or warn
log_interval = 5 # in seconds
rdb_restore_command_behavior = "skip" # panic, rewrite or skip
pipeline_count_limit = 1024 # pipeline
target_redis_client_max_querybuf_len = 1024_000_000
target_redis_proto_max_bulk_len = 512_000_000
启动redis-shake同步数据
nohup ./redis-shake sync.toml 1>> redis-shake.log 2>> redis-shake.log &
