There are several reasons that can cause a Redis cluster to crush:
Network issues: If there are network issues, such as high latency or packet loss, it can lead to failure of nodes in the cluster.
Hardware failures: If there is a hardware failure, such as a disk failure or a power outage, it can cause a node to fail and lead to the entire cluster failing.
Software bugs: Redis is an open-source software with a large codebase. Bugs in the software can lead to crashes.
Configuration issues: Incorrect configuration of the Redis cluster can cause performance issues and even lead to crashes.
Overload: If the cluster is overloaded with too many requests, it can cause the system to crash. This can happen due to unexpected spikes in traffic or poor resource allocation.
