Database + Queue: Getting the Semantics Right
We often have a pattern of database writes combined with a message queue. But ensuring correctness is hard.
Tag
Tech
Parallelize ClickHouse aggregation merge for fixed hash map
The idea is simple but learned a lot of ClickHouse aggregation, so want to jot it down.
Cilium in EKS and VPC peering
I recently need to setup VPC peering across different EKS clusters. We use Cilium with routing-mode: native. When debugging connectivity issue I refreshed my understanding of how Cilium work in EKS and what needs to be configured in our cases.
eBPF LRU map cache trashing
A interesting exploration of eBPF LRU map