best way for persistence in redis

result in higher data security, i.e. data persistence. There are 3 synchronization policies available in Redis, that is, synchronization per second, synchronization per modification, and unsynchronized. In fact, synchronization per second is also done asynchronously, and its efficiency is very high, the difference is that once the system is down, then the data will be lost in a second. Each time we modify

Redis is a memory database that supports persistence. That is to say, redis often needs to synchronize data in the memory to the disk to ensure persistence. Redis supports two persistence Methods: snapshotting (snapshot) and appen

large. What are the advantages of aof? 1). This mechanism can result in higher data security, i.e. data persistence. There are 3 synchronization policies available in Redis, that is, synchronization per second, synchronization per modification, and unsynchronized. In fact, synchronization per second is also done asynchronously, and its efficiency is very high, the difference is that once the system is dow

recovery. Because we can easily compress a single file and transfer it to other storage media. 3). maximize performance. For redis service processes, the only thing it needs to do at the beginning of persistence is to Fork sub-processes, and then the sub-processes will complete the persistence work, in this way, the

, 60 seconds are flushed to disk The Redis Rdb file does not break because its write operation is performed in a new process.When a new Rdb file is generated, the Redis-generated subprocess writes the data to a temporary file, and then renames the temporary file to an Rdb file by means of an atomic rename system call.In this way, Redis's RDB files are always av

(most important)Save the 1 //take a snapshot within 900 seconds if 1 keys are modifiedSave - Ten //take a snapshot within 300 seconds if 10 keys are modifiedSave - 10000 //take a snapshot within 60 seconds if 10,000 keys are modifiedBecause Redis reads the RDB file on the disk at boot time to achieve data recovery. Thus achieving persistence, there are several drawbacks to asking a disk dump snapshot like

cannot tolerate such losses, requiring redis to proactively require the system to synchronize cached content to the hard disk after writing to the AoF file.In Redis we can set the timing of synchronization with the Appendfsync parameter:# Appendfsync Alwaysappendfsync everysec# Appendfsync NoBy default, Redis takes the everysec rule, which is to perform a synchr

Redis is an in-memory database that supports persistence, which means that Redis often needs to synchronize in-memory data to disk to ensure persistence. Redis supports two persistence modes, one is snapshotting (snapshot) is the

1 What is persistentRedis is an in-memory database that loses power and transfers data. Persistence is the conversion of memory data to hard disk data.Of course, you can also drive to memory (the concept of backup, save, restore). 2 How to achieveTwo methods: snapshot Mode (RDB) + log mode (AOF)Fast + Maximize Redis performance + convenience: RDB modeMore durable: aof modeRecommendation: Use both of these m

What persistence mechanisms are provided by Redis: 1). RDB Persistence: This mechanism is to write a snapshot of an in-memory dataset to disk at a specified time interval. 2). AoF Persistence: This mechanism will log every write that the server processes, read the file in the Redi