FAQ

1

In high-concurrency scenarios where multiple instances (the number of instances is equal to the number of CPUs) run on a Redis server, if the AOF function is enabled for testing, the Redis log outputs "Asynchronous AOF fsync is taking too long (disk is busy?)".

The Redis log indicates that the redis-server is experiencing insufficient drive bandwidth. You can increase the drive bandwidth to resolve the issue.

2

In high-concurrency scenarios where multiple instances (the number of instances is equal to the number of CPUs) run on a Redis server, the throughput decreases as the number of connections increases during stress tests.

The htop command output shows that the system bottleneck lies in insufficient NIC queues. You can add NIC queues or NICs to resolve the issue.