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>Associate a Data Query to an existing Host</A
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><P
>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.</P
><P
>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 <TT
CLASS="FILENAME"
>add_data_query.php</TT
>
comes in. First, let's have a look at the whole list of features
it provides. Calling the script with the parameter <KBD
CLASS="USERINPUT"
>--help</KBD
> yields</P
><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>shell></SAMP
>php -q add_data_query.php --help
Add Data Query Script 1.0, Copyright 2004-2012 - 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.</PRE
><P
>Let's first stick to the listing options</P
><DIV
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><H2
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><A
NAME="CLI_ADD_DATA_QUERY_LIST_HOSTS"
>List all Hosts</A
></H2
><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>shell></SAMP
>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</PRE
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><H2
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><A
NAME="CLI_ADD_DATA_QUERY_LIST_DATA_QUERIES"
>List all Data Queries</A
></H2
><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>shell></SAMP
>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</PRE
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><A
NAME="CLI_ADD_DATA_QUERY_EXAMPLE"
>Add a Data Query</A
></H2
><PRE
CLASS="SCREEN"
><SAMP
CLASS="PROMPT"
>shell></SAMP
>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)</PRE
><P
>This example shows the use of a string <CODE
CLASS="PARAMETER"
>"fields"</CODE
> for specifying the reindex method. As given
by the help text, the use of the numeric value of <CODE
CLASS="PARAMETER"
>"3"</CODE
> would have given
the exact same result. When visiting the device edit panel, you will find non-zero values for the data query status
column, e.g. <B
CLASS="EMPHASIS"
>Success [41 Items, 5 Rows]</B
>.</P
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