34 lines
1.7 KiB
Markdown
34 lines
1.7 KiB
Markdown
---
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layout: default
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title: Event analytics
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nav_order: 10
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---
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# Event analytics
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Event analytics in observability is where you can use [Piped Processing Language]({{site.url}}{{site.baseurl}}/observability/ppl/index) (PPL) queries to build and view different visualizations of your data.
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## Get started with event analytics
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To get started, choose **Observability** in OpenSearch Dashboards, and then choose **Event analytics**. If you want to start exploring without adding any of your own data, choose **Add sample Events Data**, and Dashboards adds some sample visualizations you can interact with.
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## Build a query
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To generate custom visualizations, you must first specify a PPL query. OpenSearch Dashboards then automatically creates a visualization based on the results of your query.
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For example, the following PPL query returns a count of how many host addresses are currently in your data.
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```
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source = opensearch_dashboards_sample_data_logs | fields host | stats count()
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```
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By default, Dashboards shows results from the last 15 minutes of your data. To see data from a different timeframe, use the date and time selector.
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For more information about building PPL queries, see [Piped Processing Language]({{site.url}}{{site.baseurl}}/observability/ppl/index).
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## Save a visualization
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After Dashboards generates a visualization, you must save it if you want to return to it at a later time or if you want to add it to an [operational panel]({{site.url}}{{site.baseurl}}/observability/operational-panels).
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To save a visualization, expand the save dropdown menu next to **Run**, enter a name for your visualization, then choose **Save**. You can reopen any saved visualizations on the event analytics page.
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