27 lines
1.5 KiB
Markdown
27 lines
1.5 KiB
Markdown
---
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layout: default
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title: Gantt charts
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parent: OpenSearch Dashboards
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nav_order: 10
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---
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# Gantt charts
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OpenSearch Dashboards includes a Gantt chart visualization. Gantt charts show the start, end, and duration of unique events in a sequence. Gantt charts are useful in trace analytics, telemetry, and anomaly detection use cases, where you want to understand interactions and dependencies between various events in a schedule.
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For example, consider an index of log data. The fields in a typical set of log data, especially audit logs, contain a specific operation or event with a start time and duration.
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To create a Gantt chart, perform the following steps:
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1. In the visualizations menu, choose **Create visualization** and **Gantt Chart**.
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1. Choose a source for the chart (e.g. some log data).
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1. Under **Metrics**, choose **Event**. For log data, each log is an event.
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1. Select the **Start Time** and **Duration** fields from your data set. The start time is the timestamp for the begining of an event. The duration is the amount of time to add to the start time.
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1. Under **Results**, choose the number of events to display on the chart. Gantt charts sequence events from earliest to latest based on start time.
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1. Choose **Panel settings** to adjust axis labels, time format, and colors.
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1. Choose **Update**.
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This Gantt chart displays the ID of each log on the y-axis. Each bar is a unique event that spans some amount of time. Hover over a bar to see the duration of that event.
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