Redis CPU Usage Ramps Up after Kernel Patching

I guess you have heard the name of Meltdown and Spectre already. If not, check out this site¬†¬†Definitely, it is not a good start of a New Year. All Cloud providers are busy with patching the kernel of their underlying systems. AWS Elastic cache (Redis) is one of them. Due to its single threaded nature, … Continue reading Redis CPU Usage Ramps Up after Kernel Patching


Elasticache Redis Unreachable Issue

We have a Elasticache Redis replication group, it has two nodes: one primary and one replica. Last week, we noticed that the primary redis node suddenly stops working - any connections to the primary node timed out eventually. According to the log, there was a load burst and following that the redis reboot itself. Unfortunately, … Continue reading Elasticache Redis Unreachable Issue