This search command creates a table of statistics and a corresponding chart to display the most frequent values of a field. The command also supports the optional group Sample data
Find most frequent values for a field (with limit=5)
Find most frequent values for a field grouped by another field (with limit=5)
Find most frequent values for a field grouped by another field (with limit=1)
by parameter to display the most frequent values for each distinct tuple of values of the group by field.This topic contains the following information:
For a list of all search commands, see Search commands.
Syntax
top limit=<int> <field> [by <field>]
In the preceding syntax,the following definitions apply:
- [expression] indicates it is optional.
<int>refers to an integer value that represents the maximum number of results to return.by <field>refers to the groupbyparameter that can be optionally used to group the result set by the specified field.
Short examples
Example 1: Return the 10 most common values of the HOST field.
... | top limit=10 HOST Example 2: Return the most common data-pattern values for each host.
... | top limit=5 DATA_PATTERN by HOST
Example 3: Return the most common request types based on the client IP address.
... | top limit=5 RequestType by ClientIp
Example 4: Return the most common request type.
... | top limit=1 RequestType
Long examples
The following sample data and sample indexed data (displayed on the Search tab) will help you understand the examples of using the top command.
Sample data
10.1.1.140 - - [11/Jul/2013:15:01:52 -0700] "GET /themes/ComBeta/images/bullet.png |
10.1.1.140 - - [11/Jul/2013:15:02:52 -0700] "GET /themes/ComBeta/images/bullet.png |
10.1.1.141 - - [11/Jul/2013:15:03:52 -0700] "PUT /themes/ComBeta/images/bullet.png |
10.1.1.141 - - [11/Jul/2013:15:04:52 -0700] "POST /themes/ComBeta/images/bullet.png |
Sample indexed data
10.1.1.141 - - [11/Jul/2013:15:04:52 -0700] "POST /themes/ComBeta/images/bullet.png HOST=local.bmc.com |ResponseSize=100|COLLECTOR_NAME=u4 |ClientIp=10.1.1.141 |ResponseCode=200 |RequestType=POST|RequestURL=/themes/ComBeta/images/bullet.png |
10.1.1.141 - - [11/Jul/2013:15:03:52 -0700] "PUT /themes/ComBeta/images/bullet.png HOST=local.bmc.com |ResponseSize=200|COLLECTOR_NAME=u4 |ClientIp=10.1.1.141 |ResponseCode=201 |RequestType=PUT|RequestURL=/themes/ComBeta/images/bullet.png |
10.1.1.140 - - [11/Jul/2013:15:02:52 -0700] "GET /themes/ComBeta/images/bullet.png HOST=local.bmc.com |ResponseSize=150|COLLECTOR_NAME=u4 |ClientIp=10.1.1.140 |ResponseCode=201 |RequestType=GET|RequestURL=/themes/ComBeta/images/bullet.png |
10.1.1.140 - - [11/Jul/2013:15:01:52 -0700] "GET /themes/ComBeta/images/bullet.png HOST=local.bmc.com |ResponseSize=100|COLLECTOR_NAME=u4 |ClientIp=10.1.1.140 |ResponseCode=404 |RequestType=GET|RequestURL=/themes/ComBeta/images/bullet.png |
Find most frequent values for a field (with limit=5)
In this example, you use the command to see a table of statistics (and a multiseries chart) displaying the most used request types.
For each request type, a count indicating the number of times the request was made is displayed.
Command
... | top limit=5 RequestType
Output
| RequestType | Count |
|---|---|
| GET | 2 |
| POST | 1 |
| PUT | 1 |
Find most frequent values for a field grouped by another field (with limit=5)
In this example, you use the command to see a table of statistics (and a multiseries chart) displaying the most common request types and to understand from which client IP addresses these request types originate.
For each request type, a count is displayed, indicating the number of times the request was made per client IP address.
Command
... | top limit=5 RequestType by ClientIp
Output
| ClientIp | RequestType | Count |
|---|---|---|
10.1.1.140 | GET | 2 |
| 10.1.1.141 | POST | 1 |
| 10.1.1.141 | PUT | 1 |
Find most frequent values for a field (with limit=1)
In this example, you use the command to see a table of statistics (and a multiseries chart) displaying the most common request type.
Command
... | top limit=1 RequestType
Output
| RequestType | Count |
|---|---|
| GET | 2 |
Find most frequent values for a field grouped by another field (with limit=1)
In this example, you use the command to see a table of statistics (and a multiseries chart) displaying the most common request type grouped by the ClientIp field.
Command
... | top limit=1 RequestType by ClientIp
Output
| ClientIp | RequestType | Count |
|---|---|---|
| 10.1.1.140 | GET | 2 |
| 10.1.1.141 | POST | 1 |
Note
If the number of occurrences of the field used for the by parameter is too large (for example, 500), then the count of values displayed is an approximate value.
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