Assign the end of the search time interval to the field provided by parameter as.

The time is represented as milliseconds since January 1, 1970 (UTC). In live queries (where the search time interval is forever moving), end() is equivalent to now() — that is, the current time.

Note

The parser does not have a search interval; therefore, it does not make sense to use the end() query function here.

ParameterTypeRequiredDefault ValueDescription
as[a]stringoptional[b] _end

[a] The parameter name as can be omitted.

[b] Optional parameters use their default value unless explicitly set.

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end() Examples

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Assign End of Search Time Interval to Field - Example 1

Assign the end of the search time interval to a field using the end() function

Query
logscale
e := end()
Introduction

In this example, the end() function is used to assign the end of the search time interval to a field named e.

Step-by-Step

  1. Starting with the source repository events.

  2. logscale
    e := end()

    Assigns the value of end to a new field named e.

  3. Event Result set.

Summary and Results

The query is used to assign the end of the search time interval to a specified field. Assigning end of search time interval to a field is useful when, for example, searching for security events. When doing a query, the events you are searching do not know the span of the search (the system just returns a list of the events in the given time interval), but you might want to show the relative time of the event timestamp compared to the search window. For example, if you search of a bunch of events that happened yesterday and you are searching from yesterday 00:00 to 23:59, you then want to calculate '3 hours before' or even '2s before' because when searching for security events that time difference may be important.

Assign End of Search Time Interval to Field - Example 2

Assign the end of the search time interval to a field using the end() function in a comparison

Query
logscale
isOld := (end()-@timestamp) > 1000
Introduction

In this example, the end() is used to compare the difference between the end time and the @timestamp field to determine if an event is "old" (more than 1000 milliseconds old).

Step-by-Step

  1. Starting with the source repository events.

  2. logscale
    isOld := (end()-@timestamp) > 1000

    Returns results where the current time minus the ingestion timestamp are greater than 1000, and assigns the returned results to a new field named isOld.

    In more details: end() returns the end time of the search interval. @timestamp is the timestamp of the individual event.(end()-@timestamp) calculates the difference between these two times, giving the age of the event relative to the end of the search interval. This difference is compared to 1000 milliseconds (1 second). If the difference is greater than 1000 milliseconds, isOld will be set to true; otherwise, it will be false.

  3. Event Result set.

Summary and Results

The query is used to quickly identifying events that are more than 1 second older than the end of the search interval. Assigning end of search time interval to a field is useful when, for example, searching for security events. When doing a query, the events you are searching do not know the span of the search (the system just returns a list of the events in the given time interval), but you might want to show the relative time of the event timestamp compared to the search window. For example, if you search of a bunch of events that happened yesterday and you are searching from yesterday 00:00 to 23:59, you then want to calculate '3 hours before' or even '2s before' because when searching for security events that time difference may be important.