我可以使用连接的redis-cli复制密钥吗,redis中是否预定义了任何命令?
将FSS_SYSAGENT复制到FSS_SYSAGENTDuplicate。
10.44.112.213:6403> hgetall FSS_SYSAGENT
1)“ SYSTEM_01” 2)“ {\” port \“:\” 4407 \“,\” ipAddress \“:\” 10.44.112.213 \“,\” symbolicName \“:\” SYSTEM_01 \“,\” eventLogEnabled \“:\” 1110 \“,\”状态\“:1,\” wcPort \“:\” 6029 \“,\” activeSystem \“:\” N \“,\” createdBy \“:\” \“,\” createdDate \“:\” 2018-11-20 13:11:16 \“,\” modifiedBy \“:\” \“,\” modifiedDate \“:\” \“,\”机构\“:\” FSS \ “,\” delFlag \“:0,\” accessID \“:0,\” rowCount \“:0,\” endCount \“:0}”“
答案 0 :(得分:1)
DUMP
命令序列化密钥的值。RESTORE
命令将序列化的值恢复到另一个键。您可以将以下两个步骤包装到Lua脚本中:
-- duplicate.lua
local src = KEYS[1]
local dest = KEYS[2]
local val = redis.call('DUMP', src)
if val == false then
return 0
else
-- with RESTORE command, you can also set TTL for the new key, and use the [REPLACE] option to set the new key forcefully.
redis.call('RESTORE', dest, 0, val)
return 1
end
使用redis-cli运行Lua脚本:./redis-cli --eval duplicate.lua FSS_SYSAGENT FSS_SYSAGENTDuplicate ,