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100 lines
4.1 KiB
Plaintext
100 lines
4.1 KiB
Plaintext
[[search-sessions]]
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== Run a search session in the background
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Sometimes you might need to search through large amounts of data no matter
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how long the search takes. While this might not happen often,
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there are times that long-running queries are required.
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Consider a threat hunting scenario, where you need to search through years of data.
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If your query is running long, you can save your search session, which
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allows {kib} to continue processing your request in the
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background. Save your search session from *Discover* or *Dashboard*,
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and when your session is complete, view and manage it in *Stack Management*.
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[role="screenshot"]
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image::images/search-session.png[Search Session indicator displaying the current state of the search, which you can click to stop or save a running Search Session ]
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Search sessions are <<search-session-settings-kb,enabled by default>>.
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[float]
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==== Requirements
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* To save a session, you must have permissions for *Discover* and *Dashboard*,
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and the <<kibana-feature-privileges, search sessions subfeature>>.
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* To view and restore a saved session, you must have access to *Stack Management*.
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[float]
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==== Example: Save a search session
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You’re trying to understand a trend you see on a dashboard. You
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need to look at several years of data, currently in
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{ref}/data-tiers.html#cold-tier[cold storage],
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but you don’t have time to wait. You want {kib} to
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continue working in the background, so tomorrow you can
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open your browser and pick up where you left off.
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. Load your dashboard.
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+
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Your search session begins automatically. The icon after the dashboard title
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displays the current state of the search session. A clock indicates the search session is in progress.
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A checkmark indicates that the search session is complete.
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. To instruct {kib} to continue a search in the background, click the clock icon,
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and then click *Save session*. Once you save a search session, you can start a new search,
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navigate to a different application, or close the browser.
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+
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[role="screenshot"]
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image::images/search-session-awhile.png[Search Session indicator displaying the current state of the search, which you can click to stop or save a running Search Session, width=75% ]
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. To view your saved searches, open the main menu, and then click
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*Stack Management > Search Sessions*. You can also open this view from the search sessions popup for a saved or completed session.
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+
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[role="screenshot"]
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image::images/search-sessions-menu.png[Search Sessions management view with actions for inspecting, extending, and deleting a session. ]
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. Use the edit menu in *Search Sessions* to:
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* *Inspect* the queries and filters that makeup the session.
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* *Edit the name* of a session.
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* *Extend* the expiration of a completed session.
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* *Delete* a session.
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. To restore a search session, click its name in the *Search Sessions* view.
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+
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You're returned to the place from where you started the search session. The data is the same, but
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behaves differently:
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+
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* Relative dates are converted to absolute dates.
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* Panning and zooming is disabled for maps.
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* Changing a filter, query, or drilldown starts a new search session, which can be slow.
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[float]
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==== Limitations
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Certain visualization features do not fully support background search sessions. If a dashboard
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using these features is restored,
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all panels using unsupported features won't load immediately, but instead send out additional
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data requests, which can take a while to complete.
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The warning *Your search session is still running* is shown.
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You can either wait for these additional requests to complete or come back to the dashboard later
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when all data requests have finished.
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A panel on a dashboard can behave like this if one of the following features is used:
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**Lens**
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* A *top values* dimension with an enabled *Group other values as "Other"* setting.
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This is configurable in the *Advanced* section of the dimension.
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* An *intervals* dimension.
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**Aggregation based** visualizations
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* A *terms* aggregation with an enabled *Group other values in separate bucket* setting.
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* A *histogram* aggregation.
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**Maps**
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* Layers using joins, blended layers, or tracks layers.
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