Migrate from Redis to SSDB
Tools
The redis-import.php PHP script in the tools directory can be used to Data on the Redis server is copied to the SSDB server.
Usage:
php redis-import.php redis_host redis_port redis_db ssdb_host ssdb_port
Parameters:
- redis_host: the IP or host name where Redis runs
- redis_port: the port Redis listens on
- redis_db: the DB number of Redis
- ssdb_host: the IP or host name where SSDB runs
- ssdb_port: SSDB listening port
Please make sure your PHP Redis module https://github.com/nicolasff/phpredis has been installed.
Redis Tool Support
| Tool | Supported |
|---|---|
| redis- cli | Support |
| Support | |
| Not supported |
| Redis | SSDB |
|---|---|
| get | get |
| set | set |
| setex | setx(for kv type only) |
| del | del |
| incr/incrBy | incr |
| decr/decrBy | decr |
| mget/getMultiple | multi_get |
| setMultiple | multi_set |
| del(multiple) | multi_del |
| keys | keys(for kv type only) |
| getset | getset |
| setnx | setnx |
| exists | exists |
| ttl | ttl |
| expire | expire |
| getbit | getbit |
| setbit | setbit |
| bitcount | redis_bitcount, countbit |
| strlen | strlen |
| getrange | getrange |
Please read the instructions here very carefully:
- For Redis, the
substrcommand has long been abandoned, so you should not use thesubstrcommand in the Redis client (of course, you can do this Do, but youmustdo this) - If you are still thinking about Redis, then use the
getrangecommand - Pay attention to the difference between the two Difference:
substr(start, size),getrange(start, end) - When size is a negative number, if you are not familiar with the PHP language, then you will feel Somewhat strange
- The description of SSDB’s
substrcommand is here
Key-Map(Hash)
| Redis | SSDB |
|---|---|
| del(not supported) | hclear |
| hget | hget |
| hset | hset |
| hdel, hmdel | hdel, multi_hdel |
| hIncrBy | hincr |
| hDecrBy | hdecr |
| hKeys | hkeys |
| hVals | hscan |
| hMGet | multi_hget |
| hMSet | multi_hset |
| hLen | hsize |
| hExists | hexists |
| keys | hlist(for hash type only) |
If you want to delete the entire hash, then you must use the SSDB client to execute the hclear command. The entire hash cannot be deleted using the Redis client.
Key-Zset
| Redis | SSDB |
|---|---|
| del(not supported) | zclear |
| zScore | zget |
| zAdd | zset |
| zRem | zdel |
| zRange | zrange |
| zRevRange | zrrange |
| zRangeByScore | zscan |
| zRevRangeByScore | zrscan |
| zIncrBy | zincr |
| zDecrBy | zdecr |
| zCount | zcount |
| zSum | zsum |
| zAvg | zavg |
| zCard | zsize |
| zRank | zrank |
| zRemRangeByRank | zremrangebyrank |
| zRemRangeByScore | zremrangebyscore |
| keys | zlist(for zset type only) |
If you want to delete the entire zset, then you must use the SSDB client to execute the zclear command. The entire zset cannot be deleted using the Redis client.
Key-List(Queue)
| Redis | SSDB |
|---|---|
| del(not supported) | qclear |
| llen/lsize | qsize |
| lpush | qpush_front |
| rpush | qpush_back |
| lpop | qpop_front |
| rpop | qpop_back |
| lrange | qslice |
| lindex, lget | qget |
| lset | qset |
| keys | qlist(for queue/list type only) |
If you want to delete the entire list, then you must use the SSDB client to execute the qclear command. The entire list cannot be deleted using the Redis client.
