SumoLogic Concepts

Internal

• SumoLogic

Search

The search syntax is based on the "funnel" or the "pipeline" concept. The pipeline input receives all SumoLogic data, and data is filtered b entering keywords and operators, separated by pipes ("|"). Each operator acts on the results produced by previous operators, so data is being progressively filtered out. The typical search query syntax is similar to:

keyword search or string search | parse | where | group-by | sort | limit

All queries start with a keyword search or a string search.

As queries get longer and more complex, it is a best practice to format your queries by using a soft return before the pipes, such as:

_sourcecategory=apache
| parse "* --" as src_ip
| count by src_ip
| sort _count

Keyword Search

 _sourceCategory=CloudWatch

Keyword

Keywords are case insensitive.

How to figure out the complete list of valid keywords.

Most used keywords:

• _sourceCategory

Keyword expressions. Keyword expressions include metadata field expressions.

Metadata

Search Metadata

Metadata Fields

Metadata fields can be used in a keyword search as follows:

Available metadata fields:

_collector

The name of the Collector, as set when the Collector was installed, that received the log message.

_source

The name of the Source, as set when the Source was configured.

_sourceName

The name of the log file, as the path that was uses when the Source was configured.

_sourceCategory

The category of the Source that collected the message. The source category can be a maximum of 1,024 characters.

_sourceCategory=CloudWatch 

_sourceHost

The host name of the Source. For local Sources the name of the Source as set when the Source is configured. For remote Collectors, this field uses the remote host's name. The _sourceHost metadata field is populated using a reverse DNS lookup. If the name cannot be resolved, _sourceHost is displayed as "localhost". This can be a maximum of 128 characters.

_sourceHost=/up/test/up-plat-svc-blah

_messageCount

A sequence number, maintained by Source, added by the Collector when the message was received.

_messageTime

The timestamp of the message in milliseconds. If the message doesn't have a timestamp, _messageTime uses the _receiptTime.

_receiptTime

The time the Collector received the message in milliseconds.

_size

The size of the log message in bytes.

_format

The pattern used for parsing the timestamp. See here for more details.

_raw

The raw log message.

Operator

Individual Operators

parse

Strings can be parsed based on start and stop anchor points in messages, and then aliased as user-created fields:

... | parse "* --" as src_ip | ...

The above parses out the IP address into a field named "src_ip", using an endpoint anchor.

sort

sort

Sorting by the timestamp in natural order:

... | sort by +_messageTime

count

count by

Group Operators

Group Operators

Wildcards

'*' means zero or more characters.

? means a single character.

Source

Sources