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multisearch
Description
The multisearch command is a generating command that runs multiple streaming searches at the same time. This command requires at least two subsearches and allows only streaming operations in each subsearch. Examples of streaming searches include searches with the following commands: search, eval, where, fields, and rex. For more information, see Types of commands in the Search Manual.
Syntax
| multisearch <subsearch1> <subsearch2> <subsearch3> ...
Required arguments
- <subsearch>
- Syntax: "["search <logical-expression>"]"
- Description: At least two streaming searches must be specified. See the search command for detailed information about the valid arguments for <logical-expression>.
- To learn more, see About subsearches in the Search Manual.
Usage
The multisearch command is an event-generating command. See Command types.
Generating commands use a leading pipe character and should be the first command in a search.
Subsearch processing and limitations
With the multisearch command, the events from each subsearch are interleaved. Therefore the multisearch command is not restricted by the subsearch limitations.
Unlike the append command, the multisearch command does not run the subsearch to completion first. The following subsearch example with the append command is not the same as using the multisearch command.
index=a | eval type = "foo" | append [search index=b | eval mytype = "bar"]
Examples
Example 1:
Search for events from both index a and b. Use the eval command to add different fields to each set of results.
| multisearch [search index=a | eval type = "foo"] [search index=b | eval mytype = "bar"]
See also
Answers
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This documentation applies to the following versions of Splunk® Enterprise: 5.0, 5.0.1, 5.0.2, 5.0.3, 5.0.4, 5.0.5, 5.0.6, 5.0.7, 5.0.8, 5.0.9, 5.0.10, 5.0.11, 5.0.12, 5.0.13, 5.0.14, 5.0.15, 5.0.16, 5.0.17, 5.0.18, 6.0, 6.0.1, 6.0.2, 6.0.3, 6.0.4, 6.0.5, 6.0.6, 6.0.7, 6.0.8, 6.0.9, 6.0.10, 6.0.11, 6.0.12, 6.0.13, 6.0.14, 6.0.15, 6.1, 6.1.1, 6.1.2, 6.1.3, 6.1.4, 6.1.5, 6.1.6, 6.1.7, 6.1.8, 6.1.9, 6.1.10, 6.1.11, 6.1.12, 6.1.13, 6.1.14, 6.2.0, 6.2.1, 6.2.2, 6.2.3, 6.2.4, 6.2.5, 6.2.6, 6.2.7, 6.2.8, 6.2.9, 6.2.10, 6.2.11, 6.2.12, 6.2.13, 6.2.14, 6.2.15, 6.3.0, 6.3.1, 6.3.2, 6.3.3, 6.3.4, 6.3.5, 6.3.6, 6.3.7, 6.3.8, 6.3.9, 6.3.10, 6.3.11, 6.3.12, 6.3.13, 6.3.14, 6.4.0, 6.4.1, 6.4.2, 6.4.3, 6.4.4, 6.4.5, 6.4.6, 6.4.7, 6.4.8, 6.4.9, 6.4.10, 6.4.11, 6.5.0, 6.5.1, 6.5.1612 (Splunk Cloud only), 6.5.2, 6.5.3, 6.5.4, 6.5.5, 6.5.6, 6.5.7, 6.5.8, 6.5.9, 6.5.10, 6.6.0, 6.6.1, 6.6.2, 6.6.3, 6.6.4, 6.6.5, 6.6.6, 6.6.7, 6.6.8, 6.6.9, 6.6.10, 6.6.11, 6.6.12, 7.0.0, 7.0.1, 7.0.2, 7.0.3, 7.0.4, 7.0.5, 7.0.6, 7.0.7, 7.0.8, 7.0.9, 7.1.0, 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.1.5, 7.1.6, 7.1.7, 7.2.0, 7.2.1, 7.2.2, 7.2.3, 7.2.4, 7.2.5, 7.2.6
Comments
There is a command, "multireport" that is similar to this command and included in core Splunk Enterprise and is used in Splunk's own apps, such as "Enterprise Security" and yet it is completely undocumented. Splunk should document it and also put it in the "See also" section of this command.
Drewg33
Thanks for pointing that out. I've updated the link to point to "Types of commands" where streaming commands are discussed.
This page links to "types of searches" (http://docs.splunk.com/Documentation/Splunk/6.6.0/Search/Aboutsearch) but this page does not include any information on streaming searches vs non-streaming searches. you should link to http://docs.splunk.com/Documentation/SplunkCloud/latest/Search/Typesofcommands instead.
Woodcock
No, these are not the same. In multisearch you will get events interleaved. Unlike append, it doesn't run the subsearch to completion first. So it is not subject to the subsearch limitations.
I assume that your example is exactly the same as this:
index=a | eval type = "foo" | append [search index=b | eval mytype = "bar"]
If so (or if not), this would be good to note.
ALSO, I assume this is subject to all the subsearch-limits, right? This, too, should be mentioned.
Woodcock
Thank you for pointing this out. I'll work with the development team to get that command documented.