Capacity-Planning on Giedrius Statkevičius

Load Testing Thanos Query (StoreAPI)

Sun, 10 May 2020 11:05:27 +0000

Intro

Thanos Query is the component of Thanos that fans out a query to one or more nodes that implement the StoreAPI and then it can deduplicate the results. It also implements the Prometheus API which lets you use it via Grafana.

Any of the other components may be the receivers:

Thanos Receive;
Thanos Rule;
Thanos Sidecar;
Thanos Compact;
Thanos Query itself.

It is tricky to know how much resources you will need for any given deployment of Thanos Query because it depends on a lot of different criteria. So, to know that and to actually test the limits in practice, you ought to perform what is commonly called a load/stress test. We will use a tool called thanosbench to do that in this tutorial.

ABCs of Logstash capacity planning

Tue, 13 Aug 2019 18:26:43 +0000

Recently I had to do some capacity planning of this software that is relatively popular and it stands for the L in the ELK (Elasticsearch, Logstash, Kibana) stack so I thought that I should share what I have learned. While researching, I have found an appalling lack of information regarding this matter so I hope that this article will at least a bit help fill this void on the Internet.

Capacity planning of Prometheus 2.4.2 + Thanos Sidecar 0.1.0

Sun, 16 Dec 2018 19:35:38 +0000

Intro

Having a monitoring infrastructure is one of the tenets of the DevOps world. And, it seems that Prometheus and all of its extraneous integrations such as Thanos or Uber’s M3DB is taking over that world slowly. They give you a lot of improvements over the old Graphite set-ups such as increased reliability since Prometheus is based on HTTP which uses TCP thus you explicitly know when something goes wrong compared to UDP; it uses a pull based model so you explicitly know when something goes wrong and so on.