With the recent security vulnerabilities discovered — Meltdown (CVE-2017-5754) and Spectre (CVE-2017-5753 and CVE-2017-5715) — Redis’ engineering, devops and support teams have been working hard to make sure our cloud services, Redis Enterprise Cloud (REC) and Redis Enterprise VPC (REV), are protected.
As of now, all our REC and REV clusters on AWS, Azure, GCP and IBM Cloud have been patched by our cloud partners against Meltdown. In addition, some cloud vendors have already managed to mitigate the Spectre’s branch target injection (CVE-2017-5715).
Redis Enterprise Software (RES) customers:
Redis’ engineering team has done a series of tests to validate the effect on the performance of our cloud services. We found that the patch has a negligible impact on our Redis Enterprise VPC service, between 2.5% – 5%, whereas the impact on our Redis Enterprise Cloud service is in the range of 5%-30%, with minor outliers, depending on the cluster instance types and cloud infrastructure. Our initial tests were performed on our Redis on RAM product, and we plan to extend these to our Redis on Flash product in the coming days and weeks.
We have successfully mitigated performance issues for several customers during the last few days.
Snippets from our REV tests:
We tested a 3-node REV cluster on AWS, here is what we found:
Before the Meltdown fix:
After the Meltdown fix:
We observed a negligible impact of throughput (2.5%-5%) and almost no effect on latency.
|Cluster instance type
|Number of nodes in the cluster
|Number of master shards
|Number of items
|Load generation tool
|memtier_benchmark instance type
|Number of memtier_benchmark instances
The Redis Team