redis-shake Sort out the errors encountered in use

This article records , I'm using redis-shake Some mistakes encountered

redis-shake decode Error testing

Running redis-shake Of decode The following error occurred during mode , But Baidu and Google can't find the answer , error message ：

2022/04/23 09:45:49 [PANIC] parse rdb header error
[error]: EOF
	5   github.com/alibaba/RedisShake/pkg/rdb/reader.go:102
			github.com/alibaba/RedisShake/pkg/rdb.(*rdbReader).Read
	4   io/io.go:328
			io.ReadAtLeast
	3   io/io.go:347
			io.ReadFull
	2   github.com/alibaba/RedisShake/pkg/rdb/reader.go:445
			github.com/alibaba/RedisShake/pkg/rdb.(*rdbReader).readFull
	1   github.com/alibaba/RedisShake/pkg/rdb/loader.go:34
			github.com/alibaba/RedisShake/pkg/rdb.(*Loader).Header
	0   github.com/alibaba/RedisShake/redis-shake/common/utils.go:953
			github.com/alibaba/RedisShake/redis-shake/common.NewRDBLoader.func1

From the error information , Is in github.com/alibaba/RedisShake/redis-shake/common/utils.go 953 Error in line code , But also io Error reading file

This mistake is very strange , Why read rdb File error ？ Because of my rdb The file is running redis-shake Of dump The pattern gets

At this time, the author thought redis-shake It's open source. , Pull the official source code for testing , Here is the handle. decode Part of the code is simplified , It's not a complete process , Just go to the wrong place

Sort out the process of file reading , From run redis-shake Pull this from your machine rdb File to test

When I cut out the code , Re running go Program , It was found that there was no error , Read the file normally ; And then again in redis-shake Running on the machine decode Pattern , It's normal

It's really hard to cry or laugh , But later I thought about the reasons for this problem , It should be this rdb File format problem

Because the author later tested rdb The file is actually rerun dump New file generated by pattern , In the beginning rdb The file was generated the day before and run many times dump Covered , May cause some problems

Conclusion

redis-shake Generated rdb Try not to overwrite the file multiple times , It's best to rename each time

Author code

https://github.com/MoGD2018/go-study/tree/main/go-redis-shake-decode