This project is a parser for Redis' RDB files.
It provides utilities to:
- Generate memory report for rdb file
- Convert RDB files to JSON
- Convert RDB files to Redis Serialization Protocol (or AOF file)
- Customize data usage
Thanks sripathikrishnan for his redis-rdb-tools
If you have installed go on your compute, just simply use:
go get github.com/hdt3213/rdb
Or, you can download executable binary file from releases(https://github.com/HDT3213/rdb/releases) and put its path to PATH environment.
use rdb command in terminal, you can see it's manual
Usage:
rdb -c json -o <output_path> <source_path>
example:
rdb -c json -o intset_16.json cases/intset_16.rdb
You can get some rdb examples in cases
The examples for json result:
[
{"db":0,"key":"hash","size":64,"type":"hash","hash":{"ca32mbn2k3tp41iu":"ca32mbn2k3tp41iu","mddbhxnzsbklyp8c":"mddbhxnzsbklyp8c"}},
{"db":0,"key":"string","size":10,"type":"string","value":"aaaaaaa"},
{"db":0,"key":"expiration","expiration":"2022-02-18T06:15:29.18+08:00","size":8,"type":"string","value":"zxcvb"},
{"db":0,"key":"list","expiration":"2022-02-18T06:15:29.18+08:00","size":66,"type":"list","values":["7fbn7xhcnu","lmproj6c2e","e5lom29act","yy3ux925do"]},
{"db":0,"key":"zset","expiration":"2022-02-18T06:15:29.18+08:00","size":57,"type":"zset","entries":[{"member":"zn4ejjo4ths63irg","score":1},{"member":"1ik4jifkg6olxf5n","score":2}]},
{"db":0,"key":"set","expiration":"2022-02-18T06:15:29.18+08:00","size":39,"type":"set","members":["2hzm5rnmkmwb3zqd","tdje6bk22c6ddlrw"]}
]RDB uses rdb encoded size to estimate redis memory usage.
rdb -c memory -o <output_path> <source_path>
Example:
rdb -c memory -o mem.csv cases/memory.rdb
The examples for json result:
database,key,type,size,size_readable,element_count
0,hash,hash,64,64B,2
0,s,string,10,10B,0
0,e,string,8,8B,0
0,list,list,66,66B,4
0,zset,zset,57,57B,2
0,large,string,2056,2K,0
0,set,set,39,39B,2
Usage:
rdb -c aof -o <output_path> <source_path>
Example:
rdb -c aof -o mem.aof cases/memory.rdb
The examples for aof result:
*3
$3
SET
$1
s
$7
aaaaaaa
package main
import (
"github.com/hdt3213/rdb/parser"
"os"
)
func main() {
rdbFile, err := os.Open("dump.rdb")
if err != nil {
panic("open dump.rdb failed")
}
defer func() {
_ = rdbFile.Close()
}()
decoder := parser.NewDecoder(rdbFile)
err = decoder.Parse(func(o parser.RedisObject) bool {
switch o.GetType() {
case parser.StringType:
str := o.(*parser.StringObject)
println(str.Key, str.Value)
case parser.ListType:
list := o.(*parser.ListObject)
println(list.Key, list.Values)
case parser.HashType:
hash := o.(*parser.HashObject)
println(hash.Key, hash.Hash)
case parser.ZSetType:
zset := o.(*parser.ZSetObject)
println(zset.Key, zset.Entries)
}
// return true to continue, return false to stop the iteration
return true
})
if err != nil {
panic(err)
}
}
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