Is redis thread safe?

redis is a single-threaded server. It's not designed to benefit from multi-core CPUs. One can install multiple redis instances to improve multi-core CPU utilization. It's unfair to compare redis with more threaded storage servers. Each request is cached in a thread, and only one thread can process the request at a time.

Redis actually adopts the concept of thread closure, closing tasks in one thread, which naturally avoids thread safety issues. However, for composite applications that need to rely on multiple redis operations, In terms of operation, locks are still required, and they may be distributed locks.

Summary: redis is thread-safe

Redis is an open source, advanced key-value store, and perfect for building high-performance, scalable web applications The solution is thread safe.
Three main features of Redis:
The Redis database is completely in memory and uses disk only for persistence.
Compared with many key-value data stores, Redis has a richer set of data types.
Redis can copy data to any number of slave servers.

The above is the detailed content of Is redis thread safe?. For more information, please follow other related articles on the PHP Chinese website!