26 lines
1.5 KiB
Markdown
26 lines
1.5 KiB
Markdown
---
|
|
layout: default
|
|
title: Gantt charts
|
|
nav_order: 10
|
|
---
|
|
|
|
# Gantt charts
|
|
|
|
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.
|
|
|
|
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.
|
|
|
|
To create a Gantt chart, perform the following steps:
|
|
|
|
1. In the visualizations menu, choose **Create visualization** and **Gantt Chart**.
|
|
1. Choose a source for the chart (e.g. some log data).
|
|
1. Under **Metrics**, choose **Event**. For log data, each log is an event.
|
|
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.
|
|
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.
|
|
1. Choose **Panel settings** to adjust axis labels, time format, and colors.
|
|
1. Choose **Update**.
|
|
|
|
|
|
|
|
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.
|