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* Docusaurus build framework + ingestion doc refresh. * stick to npm instead of yarn * fix typos * restore some _bin * Adjustments. * detect and fix redirect anchors * update anchor lint * Web-console: remove specific column filters (#8343) * add clear filter * update tool kit * remove usless check * auto run * add % * Fix resource leak (#8337) * Fix resource leak * Patch comments * Enable Spotbugs NP_NONNULL_RETURN_VIOLATION (#8234) * Fixes from PR review. * Fix more anchors. * Preamble nix. * Fix more anchors, headers * clean up placeholder page * add to website lint to travis config * better broken link checking * travis fix * Fixed more broken links * better redirects * unfancy catch * fix LGTM error * link fixes * fix md issues * Addl fixes
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| id | title |
|---|---|
| indexing-service | Indexing Service |
The Apache Druid (incubating) indexing service is a highly-available, distributed service that runs indexing related tasks.
Indexing tasks create (and sometimes destroy) Druid segments. The indexing service has a master/slave like architecture.
The indexing service is composed of three main components: a Peon component that can run a single task, a Middle Manager component that manages Peons, and an Overlord component that manages task distribution to MiddleManagers. Overlords and MiddleManagers may run on the same process or across multiple processes while MiddleManagers and Peons always run on the same process.
Tasks are managed using API endpoints on the Overlord service. Please see Overlord Task API for more information.
Overlord
See Overlord.
Middle Managers
See Middle Manager.
Peons
See Peon.
Tasks
See Tasks.