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# Tracing **(ULTIMATE)**
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2020-03-13 15:44:24 +05:30
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> [Introduced](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/7903) in GitLab Ultimate 11.5.
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Tracing provides insight into the performance and health of a deployed application,
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tracking each function or microservice which handles a given request.
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This makes it easy to
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understand the end-to-end flow of a request, regardless of whether you are using a monolithic or distributed system.
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## Jaeger tracing
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[Jaeger](https://www.jaegertracing.io/) is an open source, end-to-end distributed
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tracing system used for monitoring and troubleshooting microservices-based distributed
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systems.
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### Deploying Jaeger
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To learn more about deploying Jaeger, read the official
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[Getting Started documentation](https://www.jaegertracing.io/docs/latest/getting-started/).
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There is an easy to use [all-in-one Docker image](https://www.jaegertracing.io/docs/latest/getting-started/#AllinoneDockerimage),
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as well as deployment options for [Kubernetes](https://github.com/jaegertracing/jaeger-kubernetes)
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and [OpenShift](https://github.com/jaegertracing/jaeger-openshift).
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### Enabling Jaeger
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GitLab provides an easy way to open the Jaeger UI from within your project:
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1. [Set up Jaeger](https://www.jaegertracing.io) and configure your application using one of the
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[client libraries](https://www.jaegertracing.io/docs/latest/client-libraries/).
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1. Navigate to your project's **Settings > Operations** and provide the Jaeger URL.
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1. Click **Save changes** for the changes to take effect.
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1. You can now visit **Operations > Tracing** in your project's sidebar and
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GitLab will redirect you to the configured Jaeger URL.
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