Associate a Data Query to an existing Host

It is recommended to maintain data query associations by maintaining host templates. Each time, a data query is added to a host template, it will automatically associated with all hosts related to that very host template. The data query will be executed as well; this way the snmp cache will be filled with all values related to that query.

Nevertheless, it is sometimes suitable to manually associate a certain data query with a single host only without changing any host template. This is, where the script add_data_query.php comes in. First, let's have a look at the whole list of features it provides. Calling the script with the parameter --help yields

shell>php -q add_data_query.php --help

Add Data Query Script 1.0, Copyright 2004-2013 - The Cacti Group

A simple command line utility to add a data query to an existing device in Cacti

usage: add_data_query.php --host-id=[ID] --data-query-id=[dq_id] --reindex-method=[method] [--quiet]

Required:
    --host-id         the numerical ID of the host
    --data-query-id   the numerical ID of the data_query to be added
    --reindex-method  the reindex method to be used for that data query
                      0|None   = no reindexing
                      1|Uptime = Uptime goes Backwards
                      2|Index  = Index Count Changed
                      3|Fields = Verify all Fields
List Options:
    --list-hosts
    --list-data-queries
    --quiet - batch mode value return

If the data query was already associated, it will be reindexed.

Let's first stick to the listing options

shell>php -q add_data_query.php --list-hosts

Known Hosts: (id, hostname, template, description)
1       127.0.0.1       8       Localhost
11      router          3       router.mydomain.com

shell>php -q add_data_query.php --list-data-queries

Known SNMP Queries:(id, name)
1       SNMP - Interface Statistics
2       ucd/net -  Get Monitored Partitions
3       Karlnet - Wireless Bridge Statistics
4       Netware - Get Available Volumes
6       Unix - Get Mounted Partitions
7       Netware - Get Processor Information
8       SNMP - Get Mounted Partitions
9       SNMP - Get Processor Information

shell>php -q add_data_query.php --host-id=11 --data-query-id=1 --reindex-method=fields

Success - Host (11: router.mydomain.com) data query (1: SNMP - Interface Statistics) reindex method (3: Verify All Fields)