# [[Loki compactor]]
![[Loki compactor.svg]]
The [[Grafana Loki|Loki]] compactor is the [[Architecture of Loki|component]] that:
- merges multiple index files produced by the ingesters into one at regular intervals. The compactor downloads the files from object storage, merges them into a single file, uploads the newly created index, and cleans up the old files.
- handles log retention and deletion
<iframe width="560" height="315" src="https://www.youtube.com/embed/_hv4i84Z68s?start=829s" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
## Scaling compactors
> [!tip] Rule of thumb: how many compactors should I have?
> In a full [[How to deploy Grafana Loki|microservices deployment of Loki]], start with 1.
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# Excalidraw Data
## Text Elements
## Drawing
```json
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"version": 2,
"source": "https://github.com/zsviczian/obsidian-excalidraw-plugin/releases/tag/2.1.4",
"elements": [
{
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"type": "text",
"x": 118.49495565891266,
"y": -333.44393157958984,
"width": 3.8599853515625,
"height": 24,
"angle": 0,
"strokeColor": "#1e1e1e",
"backgroundColor": "transparent",
"fillStyle": "solid",
"strokeWidth": 2,
"strokeStyle": "solid",
"roughness": 1,
"opacity": 100,
"groupIds": [],
"frameId": null,
"roundness": null,
"seed": 967149026,
"version": 2,
"versionNonce": 939059582,
"isDeleted": true,
"boundElements": null,
"updated": 1713723615080,
"link": null,
"locked": false,
"text": "",
"rawText": "",
"fontSize": 20,
"fontFamily": 4,
"textAlign": "left",
"verticalAlign": "top",
"containerId": null,
"originalText": "",
"lineHeight": 1.2
}
],
"appState": {
"theme": "dark",
"viewBackgroundColor": "#ffffff",
"currentItemStrokeColor": "#1e1e1e",
"currentItemBackgroundColor": "transparent",
"currentItemFillStyle": "solid",
"currentItemStrokeWidth": 2,
"currentItemStrokeStyle": "solid",
"currentItemRoughness": 1,
"currentItemOpacity": 100,
"currentItemFontFamily": 4,
"currentItemFontSize": 20,
"currentItemTextAlign": "left",
"currentItemStartArrowhead": null,
"currentItemEndArrowhead": "arrow",
"scrollX": 583.2388916015625,
"scrollY": 573.6323852539062,
"zoom": {
"value": 1
},
"currentItemRoundness": "round",
"gridSize": null,
"gridColor": {
"Bold": "#C9C9C9FF",
"Regular": "#EDEDEDFF"
},
"currentStrokeOptions": null,
"previousGridSize": null,
"frameRendering": {
"enabled": true,
"clip": true,
"name": true,
"outline": true
}
},
"files": {}
}
```
%%