bb98e9a2b8
Adds a `runNow` api to Task Manager, allowing us to force the refresh of a recurring task. This PR includes a couple of sustainability changes as well as the feature itself. 1. **Declarative query composition.** At the moment the queries in the TaskStore are huge JSON objects that are hard to maintain and understand. This PR introduces a pattern where the different parts of the query are composed out of type-checked functions, making it easier to maintain and to construct dynamically as needs change. _This was included in this PR as the **markAvailableTasksAsClaimed** query needs different query clauses depending on whether there are specific Tasks we wish to claim first. 2. **Refactoring of the Task Poller** As the `runNow` api is introduced we find Task Manager's lifecycle in a weird state where it has both a _pull_ model, where timeouts & callbacks interact without having to responsd to any external requests, and a _push_ model where requests are made to the new `runNow` api. Balancing these two proved error prone, hard to maintain and had the potential of _lossy_ behaviour where requests are dropped accidentally. To address this TaskPoller has been refactored using Rxjs observables, remodelling the existing _pull_ mechanism as a _push_ mechanism so Task Manager can _respond_ to both _polling_ calls and _runNow_ in a similar fashion. And ofcourse the main feature of this PR: 3. **runNow api** An api on TaskManager that takes a _task ID_ and attempts to run the task. The call returns a promise which resolves with a result which notifies the caller when the task has either completed successfully, or result in an error. |
||
|---|---|---|
| .ci | ||
| .github | ||
| bin | ||
| common/graphql | ||
| config | ||
| data | ||
| docs | ||
| examples | ||
| licenses | ||
| packages | ||
| rfcs | ||
| scripts | ||
| src | ||
| style_guides | ||
| tasks | ||
| test | ||
| typings | ||
| utilities | ||
| vars | ||
| webpackShims | ||
| x-pack | ||
| .backportrc.json | ||
| .browserslistrc | ||
| .editorconfig | ||
| .eslintignore | ||
| .eslintrc.js | ||
| .gitattributes | ||
| .gitignore | ||
| .i18nrc.json | ||
| .node-version | ||
| .nvmrc | ||
| .prettierrc | ||
| .sass-lint.yml | ||
| .yarnrc | ||
| CONTRIBUTING.md | ||
| FAQ.md | ||
| github_checks_reporter.json | ||
| Gruntfile.js | ||
| Jenkinsfile | ||
| kibana.d.ts | ||
| LICENSE.txt | ||
| NOTICE.txt | ||
| package.json | ||
| preinstall_check.js | ||
| README.md | ||
| renovate.json5 | ||
| STYLEGUIDE.md | ||
| tsconfig.browser.json | ||
| tsconfig.json | ||
| tsconfig.types.json | ||
| TYPESCRIPT.md | ||
| yarn.lock | ||
Kibana
Kibana is your window into the Elastic Stack. Specifically, it's a browser-based analytics and search dashboard for Elasticsearch.
- Getting Started
- Documentation
- Version Compatibility with Elasticsearch
- Questions? Problems? Suggestions?
Getting Started
If you just want to try Kibana out, check out the Elastic Stack Getting Started Page to give it a whirl.
If you're interested in diving a bit deeper and getting a taste of Kibana's capabilities, head over to the Kibana Getting Started Page.
Using a Kibana Release
If you want to use a Kibana release in production, give it a test run, or just play around:
- Download the latest version on the Kibana Download Page.
- Learn more about Kibana's features and capabilities on the Kibana Product Page.
- We also offer a hosted version of Kibana on our Cloud Service.
Building and Running Kibana, and/or Contributing Code
You might want to build Kibana locally to contribute some code, test out the latest features, or try out an open PR:
- CONTRIBUTING.md will help you get Kibana up and running.
- If you would like to contribute code, please follow our STYLEGUIDE.md.
- Learn more about our UI code with UI_SYSTEMS.md.
- For all other questions, check out the FAQ.md and wiki.
Documentation
Visit Elastic.co for the full Kibana documentation.
For information about building the documentation, see the README in elastic/docs.
Version Compatibility with Elasticsearch
Ideally, you should be running Elasticsearch and Kibana with matching version numbers. If your Elasticsearch has an older version number or a newer major number than Kibana, then Kibana will fail to run. If Elasticsearch has a newer minor or patch number than Kibana, then the Kibana Server will log a warning.
Note: The version numbers below are only examples, meant to illustrate the relationships between different types of version numbers.
| Situation | Example Kibana version | Example ES version | Outcome |
|---|---|---|---|
| Versions are the same. | 5.1.2 | 5.1.2 | 💚 OK |
| ES patch number is newer. | 5.1.2 | 5.1.5 | ⚠️ Logged warning |
| ES minor number is newer. | 5.1.2 | 5.5.0 | ⚠️ Logged warning |
| ES major number is newer. | 5.1.2 | 6.0.0 | 🚫 Fatal error |
| ES patch number is older. | 5.1.2 | 5.1.0 | ⚠️ Logged warning |
| ES minor number is older. | 5.1.2 | 5.0.0 | 🚫 Fatal error |
| ES major number is older. | 5.1.2 | 4.0.0 | 🚫 Fatal error |
Questions? Problems? Suggestions?
- If you've found a bug or want to request a feature, please create a GitHub Issue. Please check to make sure someone else hasn't already created an issue for the same topic.
- Need help using Kibana? Ask away on our Kibana Discuss Forum and a fellow community member or Elastic engineer will be glad to help you out.