The Prometheus monitoring system and time series database.
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Bryan Boreham d614ae9ecf
[RFC] Add method to get reference number for TSDB Appender (#8600)
* Add method to get reference number for TSDB Appender

In situations where we need to copy labels before calling Add(),
GetRef() allows to check first, then call AddFast() in the case that the series
is already known.

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Add explicit interface for GetRef() method

Suggested in code review by @bwplotka

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Rename OptionalGetRef to GetRef

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>

* Simplify return value of GetRef()

0 can be relied on to mean 'no reference'

Signed-off-by: Bryan Boreham <bjboreham@gmail.com>
2021-03-19 19:28:55 +00:00
.circleci Speed up PR builds 2021-03-17 21:16:13 +01:00
.github Add codesome (tsdb, promql) and roidelapluie (promql) in CODEOWNERS file (#8560) 2021-03-04 18:21:35 +05:30
cmd Add circular in-memory exemplars storage (#6635) 2021-03-16 15:17:45 +05:30
config add support for scaleway service discovery (#8555) 2021-03-10 15:10:17 +01:00
console_libraries Make React UI the default, keep old UI under /classic (#8142) 2020-11-03 14:51:48 +01:00
consoles Update console template example metric names. (#5678) 2019-06-17 12:13:29 +01:00
discovery Rename to or ID 2021-03-12 23:53:08 +01:00
docs Add circular in-memory exemplars storage (#6635) 2021-03-16 15:17:45 +05:30
documentation add support for scaleway service discovery (#8555) 2021-03-10 15:10:17 +01:00
notifier Testify: move to require (#8122) 2020-10-29 09:43:23 +00:00
pkg Add circular in-memory exemplars storage (#6635) 2021-03-16 15:17:45 +05:30
prompb Update github.com/gogo/protobuf to v1.3.2 2021-02-08 17:30:46 +01:00
promql Optimize aggregations in PromQL engine (#8594) 2021-03-19 17:52:29 +01:00
rules [rule] Update rule health for append/commit fails (#8619) 2021-03-18 15:44:33 +01:00
scrape Ensure that timestamp comparison uses wall clock time (backport #8601) 2021-03-16 16:44:10 +01:00
scripts Improve sync_repo_files.sh 2021-03-16 09:48:23 +01:00
storage [RFC] Add method to get reference number for TSDB Appender (#8600) 2021-03-19 19:28:55 +00:00
template Testify: move to require (#8122) 2020-10-29 09:43:23 +00:00
tsdb [RFC] Add method to get reference number for TSDB Appender (#8600) 2021-03-19 19:28:55 +00:00
util Add circular in-memory exemplars storage (#6635) 2021-03-16 15:17:45 +05:30
web [UI] Fix small issues generating console errors (#8622) 2021-03-19 13:20:04 +01:00
.dockerignore Add image build for ppc64le architecture 2020-04-06 18:03:58 -03:00
.gitignore Add instructions for building docker image locally to README.md 2021-02-12 13:47:41 +00:00
.gitpod.yml Gitpod config (#7749) 2020-08-14 17:23:55 +02:00
.golangci.yml Remove inline Go vendor dir 2021-02-11 11:53:22 +01:00
.promu.yml Upgrade to golang 1.16 2021-03-05 00:59:25 +01:00
CHANGELOG.md Release 2.25.2 2021-03-16 16:44:35 +01:00
CODE_OF_CONDUCT.md Improve repo sync script 2020-06-17 17:12:36 +02:00
CONTRIBUTING.md Update master branch to main 2021-03-05 15:55:42 +07:00
Dockerfile Fix docker image build 2020-12-16 21:21:22 +01:00
go.mod use golang/snappy v0.0.3 2021-03-12 19:34:22 +00:00
go.sum use golang/snappy v0.0.3 2021-03-12 19:34:22 +00:00
LICENSE Clean up license issues. 2015-01-21 20:07:45 +01:00
MAINTAINERS.md Add @dgl as maintainer of promtool 2021-03-08 20:38:57 +01:00
Makefile Increase golint timeout 1m -> 2m (#8469) 2021-02-10 14:02:26 +01:00
Makefile.common Speed up PR builds 2021-03-17 21:16:13 +01:00
NOTICE Rename default branch to main 2021-02-22 20:28:02 +01:00
README.md Fix the installation from source instruction in README 2021-03-11 16:24:15 +01:00
RELEASE.md Volunteering Myself & Chris for next releases. 2021-02-26 16:06:19 +00:00
SECURITY.md Add SECURITY.md file (#8292) 2021-01-09 09:58:53 +01:00
VERSION Release 2.25.2 2021-03-16 16:44:35 +01:00

Prometheus

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Visit prometheus.io for the full documentation, examples and guides.

Prometheus, a Cloud Native Computing Foundation project, is a systems and service monitoring system. It collects metrics from configured targets at given intervals, evaluates rule expressions, displays the results, and can trigger alerts when specified conditions are observed.

The features that distinguish Prometheus from other metrics and monitoring systems are:

  • A multi-dimensional data model (time series defined by metric name and set of key/value dimensions)
  • PromQL, a powerful and flexible query language to leverage this dimensionality
  • No dependency on distributed storage; single server nodes are autonomous
  • An HTTP pull model for time series collection
  • Pushing time series is supported via an intermediary gateway for batch jobs
  • Targets are discovered via service discovery or static configuration
  • Multiple modes of graphing and dashboarding support
  • Support for hierarchical and horizontal federation

Architecture overview

Install

There are various ways of installing Prometheus.

Precompiled binaries

Precompiled binaries for released versions are available in the download section on prometheus.io. Using the latest production release binary is the recommended way of installing Prometheus. See the Installing chapter in the documentation for all the details.

Docker images

Docker images are available on Quay.io or Docker Hub.

You can launch a Prometheus container for trying it out with

$ docker run --name prometheus -d -p 127.0.0.1:9090:9090 prom/prometheus

Prometheus will now be reachable at http://localhost:9090/.

Building from source

To build Prometheus from source code, first ensure that have a working Go environment with version 1.14 or greater installed. You also need Node.js and Yarn installed in order to build the frontend assets.

You can directly use the go tool to download and install the prometheus and promtool binaries into your GOPATH:

$ GO111MODULE=on go get github.com/prometheus/prometheus/cmd/...
$ prometheus --config.file=your_config.yml

However, when using go get to build Prometheus, Prometheus will expect to be able to read its web assets from local filesystem directories under web/ui/static and web/ui/templates. In order for these assets to be found, you will have to run Prometheus from the root of the cloned repository. Note also that these directories do not include the new experimental React UI unless it has been built explicitly using make assets or make build.

An example of the above configuration file can be found here.

You can also clone the repository yourself and build using make build, which will compile in the web assets so that Prometheus can be run from anywhere:

$ mkdir -p $GOPATH/src/github.com/prometheus
$ cd $GOPATH/src/github.com/prometheus
$ git clone https://github.com/prometheus/prometheus.git
$ cd prometheus
$ make build
$ ./prometheus --config.file=your_config.yml

The Makefile provides several targets:

  • build: build the prometheus and promtool binaries (includes building and compiling in web assets)
  • test: run the tests
  • test-short: run the short tests
  • format: format the source code
  • vet: check the source code for common errors
  • assets: build the new experimental React UI

Building the Docker image

The make docker target is designed for use in our CI system. You can build a docker image locally with the following commands:

$ make promu
$ promu crossbuild -p linux/amd64
$ make common-docker-amd64

NB if you are on a Mac, you will need gnu-tar.

React UI Development

For more information on building, running, and developing on the new React-based UI, see the React app's README.md.

More information

Contributing

Refer to CONTRIBUTING.md

License

Apache License 2.0, see LICENSE.