The thanos query command (also known as “Querier”) implements the Prometheus HTTP v1 API to query data in a Thanos cluster via PromQL. In short, it gathers the data needed to evaluate the query from underlying StoreAPIs, evaluates the query and returns the result. Querier is fully stateless and horizontally scalable.

How does Thanos query work?

Thanos Query is the main component of Thanos, it is the central point where you send promQL query to. Thanos query exposes a Prometheus compatible endpoints. Then it dispatches query to all of it “stores”. Keep in mind the store may be any other Thanos component that serves metrics.

Why use Thanos Prometheus?

Thanos can help any organization using Prometheus that needs to enable high availability and virtually unlimited historical data storage. Using Thanos makes it easier to scale Prometheus horizontally and obtain a global view of data from multiple Prometheus servers.

What is Thanos query frontend?

The thanos query-frontend command implements a service that can be put in front of Thanos Queriers to improve the read path. It is based on the Cortex Query Frontend component so you can find some common features like Splitting and Results Caching . Query Frontend is fully stateless and horizontally scalable.

What is Thanos store Gateway?

The thanos store command (also known as Store Gateway) implements the Store API on top of historical data in an object storage bucket. It acts primarily as an API gateway and therefore does not need significant amounts of local disk space. It joins a Thanos cluster on startup and advertises the data it can access.

Introduction to Thanos | Rawkode Live

28 related questions found

What is Thanos compact?

The thanos compact command applies the compaction procedure of the Prometheus 2.0 storage engine to block data stored in object storage. It is generally not semantically concurrency safe and must be deployed as a singleton against a bucket. ... Creating 5m downsampling for blocks larger than 40 hours (2d, 2w)

What is Thanos sidecar?

The thanos sidecar command runs a component that gets deployed along with a Prometheus instance. This allows sidecar to optionally upload metrics to object storage and allow Queriers to query Prometheus data with common, efficient StoreAPI.

What does Thanos compactor do?

The compactor component of Thanos applies the compaction procedure of the Prometheus 2.0 storage engine to block data stored in object storage. ... It is also responsible for downsampling of data - performing 5m downsampling after 40 hours and 1h downsampling after 10 days.

What is Thanos Openshift?

Thanos is a project that turns your Prometheus installation into a highly available metric system with unlimited storage capacity. From a very high-level view, it does this by deploying a sidecar to Prometheus, which uploads the data blocks to any object storage.

How do I install Prometheus operator?

Once you have this ready to go, you can begin.

1. Step 1 — Install Prometheus Operator. ...
2. Step 2 — Configure Prometheus RBAC Permissions. ...
3. Step 3 — Deploy Prometheus. ...
4. Step 4 — Create a Prometheus Service. ...
5. Step 5 — Create a Prometheus ServiceMonitor. ...
6. Step 6 — Create a Kubernetes Secret to store Grafana Cloud credentials.

How do you implement Thanos?

To deploy the Thanos components, we complete the following:

1. Enable Thanos Sidecar for Prometheus.
2. Deploy Thanos Querier with the ability to talk to Sidecar.
3. Confirm that Thanos Sidecar is able to upload Prometheus metrics to our S3 bucket.

What is Cortex Prometheus?

Created by Weaveworks, Cortex is an open source timeseries database and monitoring system for applications and microservices. Based on Prometheus, Cortex adds horizontal scaling and virtually indefinite data retention.

What is Prometheus tool?

Prometheus is a free software application used for event monitoring and alerting. It records real-time metrics in a time series database (allowing for high dimensionality) built using a HTTP pull model, with flexible queries and real-time alerting.

What is Federation in Prometheus?

Prometheus federation is a Prometheus server that can scrape data from other Prometheus servers. It supports hierarchical federation, which in our case resembles a tree. ... Prometheus federation scrapes data from all the other Prometheus servers that run in our clusters.

What is downsampling Thanos?

The goal of downsampling is providing an opportunity to get fast results for range queries of big time intervals like months or years. In other words, if you set --retention. resolution-raw less then --retention. resolution-5m and --retention.

How do I set up Thanos Prometheus?

1. Step 1: Install the Prometheus Operator on each cluster. ...
2. Step 2: Install and configure Thanos. ...
3. Step 3: Install Grafana. ...
4. Step 4: Configure Grafana to use Thanos as a data source. ...
5. Step 5: Test the system.

How does OpenShift fluent work?

Fluentd is deployed as a DaemonSet in OpenShift Container Platform that deploys pods to each OpenShift Container Platform node. Fluentd uses journald as the system log source. These are log messages from the operating system, the container runtime, and OpenShift Container Platform.

What should I monitor in OpenShift?

Each OpenShift Container Platform component is responsible for its monitoring configuration.
...
Default monitoring targets

1. CoreDNS.
2. Elasticsearch (if Logging is installed)
3. etcd.
4. Fluentd (if Logging is installed)
5. HAProxy.
6. Image registry.
7. Kubelets.
8. Kubernetes apiserver.

What is Prometheus OpenShift?

Prometheus is an open-source systems monitoring and alerting toolkit. The Prometheus Operator creates, configures, and manages Prometheus clusters running on Kubernetes-based clusters, such as Red Hat OpenShift Container Platform.

How does Prometheus work in Kubernetes?

Monitoring Kubernetes Cluster with Prometheus. Prometheus is a pull-based system. It sends an HTTP request, a so-called scrape , based on the configuration defined in the deployment file. The response to this scrape request is stored and parsed in storage along with the metrics for the scrape itself.

How do you pronounce Thanos?

As MissDanvers and Gabri said, Thanos comes from Thanatos, the embodiment of Death in Greek Mythology, therefore the correct pronounciation should be T-Ah-nos (I didn't forget the H after the T, it's just that your Th sounds different from the Greek θ, Theta).

How do I get Prometheus High Availability?

To run Prometheus in a highly available manner, two (or more) instances need to be running with the same configuration, that means they scrape the same targets, which in turn means they will have the same data in memory and on disk, which in turn means they are answering requests the same way.

Who saved Prometheus?

For his crimes, Prometheus was punished by Zeus, who bound him with chains and sent an eagle to eat Prometheus' immortal liver every day, which then grew back every night. Years later, the Greek hero Heracles, with Zeus' permission, killed the eagle and freed Prometheus from this torment (521–529).

Who owns Prometheus?

SAN FRANCISCO, May 30, 2019 /PRNewswire/ -- Genstar Capital, a leading private equity firm focused on investments in targeted segments of the software, industrial technology, healthcare, and financial services industries, announced today the acquisition of Prometheus Group from Francisco Partners for over $1 billion.

What is the difference between Kibana and Grafana?

The key difference between the two visualization tools stems from their purpose. Grafana's design for caters to analyzing and visualizing metrics such as system CPU, memory, disk and I/O utilization. ... Kibana, on the other hand, runs on top of Elasticsearch and is used primarily for analyzing log messages.