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85 lines
3.7 KiB
85 lines
3.7 KiB
# Prometheus [](https://travis-ci.org/prometheus/prometheus)
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Prometheus is a systems and service monitoring system. It collects metrics
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from configured targets at given intervals, evaluates rule expressions,
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displays the results, and can trigger alerts if some condition is observed
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to be true.
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Prometheus' main distinguishing features as compared to other monitoring systems are:
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- a **multi-dimensional** data model (timeseries defined by metric name and set of key/value dimensions)
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- a **flexible query language** to leverage this dimensionality
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- no dependency on distributed storage; **single server nodes are autonomous**
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- timeseries collection happens via a **pull model** over HTTP
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- **pushing timeseries** is supported via an intermediary gateway
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- targets are discovered via **service discovery** or **static configuration**
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- multiple modes of **graphing and dashboarding support**
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- **federation support** coming soon
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## Architecture overview
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## Install
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There are various ways of installing Prometheus.
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### Precompiled packages
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We plan to provide precompiled binaries for various platforms and even
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packages for common Linux distributions soon. Once those are offered,
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it will be the recommended way of installing Prometheus.
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### Use `make`
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In most circumstances, the following should work:
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$ make build
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$ ./prometheus -config.file=documentation/examples/prometheus.conf
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The above requires a number of common tools to be installed, namely
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`curl`, `git`, `gzip`, `hg` (Mercurial CLI), `sed`, `xxd`. Should you
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need to change any of the protocol buffer definition files
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(`*.proto`), you also need the protocol buffer compiler
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[`protoc`](http://code.google.com/p/protobuf/), v2.5.0 or higher,
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in your `$PATH`.
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Everything else will be downloaded and installed into a staging
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environment in the `.build` sub-directory. That includes a Go
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development environment of the appropriate version.
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The `Makefile` offers a number of useful targets. Some examples:
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* `make test` runs tests.
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* `make tarball` creates a tarball with the binary for distribution.
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* `make race_condition_run` compiles and runs a binary with the race detector enabled. To pass arguments when running Prometheus this way, set the `ARGUMENTS` environment variable (e.g. `ARGUMENTS="-config.file=./prometheus.conf" make race_condition_run`).
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### Use your own Go development environment
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Using your own Go development environment with the usual tooling is
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possible, too, but you have to take care of various generated files
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(usually by running `make` in the respective sub-directory):
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* Compiling the protocol buffer definitions in `config` (only if you have changed them).
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* Generating the parser and lexer code in `rules` (only if you have changed `parser.y` or `lexer.l`).
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* The `files.go` blob in `web/blob`, which embeds the static web content into the binary.
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Furthermore, the build info (see `build_info.go`) will not be
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populated if you simply run `go build`. You have to pass in command
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line flags as defined in `Makefile.INCLUDE` (see `${BUILDFLAGS}`) to
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do that.
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## More information
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* The source code is periodically indexed: [Prometheus Core](http://godoc.org/github.com/prometheus/prometheus).
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* You will find a Travis CI configuration in `.travis.yml`.
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* All of the core developers are accessible via the [Prometheus Developers Mailinglist](https://groups.google.com/forum/?fromgroups#!forum/prometheus-developers) and the `#prometheus` channel on `irc.freenode.net`.
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## Contributing
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Refer to [CONTRIBUTING.md](CONTRIBUTING.md)
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## License
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Apache License 2.0, see [LICENSE](LICENSE).
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