1. Available tables
The following tables are available for use in Livestatus. Some of them additionally function over the columns of another table. These columns will be identified by the table’s name as a prefix:
Contains all information for the configured hosts.
Contains all information for the configured services, and additionally the columns from
Information for the host groups.
Information for the service groups.
Information for the contact groups.
Information for the contacts.
All configured Check-Commands, as found for a service under Service check command.
All information for the configured Time Periods.
Contains all information for comments, and in addition the columns from
All information for logged events. These should be filtered by class and time stamp/time period.
Information for the core’s status and performance.
All available tables will be listed here. Additionally,a description of all of a table’s columns is also provided.
The past-statuses for a host/service can be comprehensively searched with this table.
Lists all of the Event Console’s events. This table additionally has all columns from
Lists statistics from the performance of the Event Console.
Statistics for how often the rule-matching for an incoming event was successful.
Should you wish to know which columns a table uses, these can be easily shown with the following command:
OMD[mysite]:~$ lq "GET columns\nColumns: name\nFilter: table = columns" description name table type
Other tables can also be selected by using filters. All of the columns available for searching by column and table can be seen in the output from the example shown.
2. Available headers
Restricts the output to the specified columns
Column name, operator and object name
Restricts the output to the defined object. See also filter.
Links the last
Links the last
Inverts the last
Defines the characters for separating elements
Defines an alternative output format for the data. Possible formats are
Operator and column names
Generates statistics for specified columns
Limits the output to
Restricts the time allowed for processing the query to
The first line of the output contains the name of the column used. If the header
Restricts the output to the lines that the specified user is authorised to see
The object for which a specified behaviour is expected. This is the object’s name, or respectively in the case of the
The condition that must be satisfied for the defined object. Any desired number of conditions can be defined – these are linked together with a logical and
Keywords work like a normal condition if they are set by themselves. In combination with the
Sets a time limit in milliseconds. Following, for example, 5000 Milliseconds (5 seconds), the query will be executed even if the condition has not been satisfied
By using a specified reference time it is attempted to compensate for differing local time stamps in a distributed environment
Returns a status line in the first line of the response. The output itself remains in the first line if the header
Prevents the Livestatus-channel being closed following a query
* The following keywords are available for the
3. Operators for filters
3.1. General operators
|Operator*||For numbers||For character strings|
Contains a character string as a regular expression.
Contains at least one of the values**
Contains a case-insensitive character string as a regular expression
Lexicographically smaller than
Lexicographically larger than
Smaller or equal
Lexicographically smaller or equal
Larger or equal
Lexicographically larger or equal
* All operators can be negated with an exclamation mark (!).
** These operators are useful when working with lists. Livestatus then interprets the specified values as a quantity.
3.2. Operators for lists
You can check whether an element is included in a list using the following operators:
|Operator||Type of check|
Checks for empty lists*
The character string for a regular expression*
The case-insensitive character string for a regular expression*
* These operators can be negated with an exclamation mark (!).
4. Operators for statistics
Generates a sum from the values
Searches for the smallest value
Searches for the highest value
Calculates an average value (mean value)
Outputs the standard deviation
Inverts the sum of the values according to 1/
Inverts the mean value of the values according to 1/
5. Status codes from the ResponseHeader
The query was successful and the response contains the requested data
The query contains a faulty header
The table could not be found
The time limit for the query has been exceeded
The query was incompletely transferred
The query is completely invalid
The following commands are available for you in all editions of Checkmk:
Commands which are only available with the CMC in the Checkmk Enterprise Editions: