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If set, and if a Low Threshold is breached, this command will be run. Please enter a valid command. In addition, there are several replacement tags available that can be used to pass information from the Threshold to the script. You can do this as arguments on the command line, or preferably, in the environment of the script. All replacement values will appear in the environment of the script prefixed with THOLD_. So, for example CURRENTVALUE will become THOLD_CURRENTVALUE, and so on. The variables include: &#060DESCRIPTION&#062 &#060HOSTNAME&#062 &#060TIME&#062 &#060DATE&#062 &#060URL&#062 &#060GRAPHID&#062 &#060CURRENTVALUE&#062 &#060THRESHOLDNAME&#062 &#060DSNAME&#062 &#060SUBJECT&#062 &#060GRAPH&#062 &#060HI&#062 &#060LOW&#062 &#060DURATION&#062 &#060TRIGGER&#062 &#060DETAILS_URL&#062 &#060DATE_RFC822&#062 &#060BREACHED_ITEMS&#062. Finally, Host, Data Query and Data input replacement can be made. For example, if you have a data input custom data called pending, to perform the replacement use |pending|. For Data Query, and Host replacement use Cacti conventions |query_xxxx|, and |host_xxxx| respectively.
If set, when a thold falls back to a normal value, this command will be run. Please enter a valid command. In addition, there are several replacement tags available that can be used to pass information from the Threshold to the script. You can do this as arguments on the command line, or preferably, in the environment of the script. All replacement values will appear in the environment of the script prefixed with THOLD_. So, for example CURRENTVALUE will become THOLD_CURRENTVALUE, and so on. The variables include: &#060DESCRIPTION&#062 &#060HOSTNAME&#062 &#060TIME&#062 &#060DATE&#062 &#060URL&#062 &#060GRAPHID&#062 &#060CURRENTVALUE&#062 &#060THRESHOLDNAME&#062 &#060DSNAME&#062 &#060SUBJECT&#062 &#060GRAPH&#062 &#060HI&#062 &#060LOW&#062 &#060DURATION&#062 &#060TRIGGER&#062 &#060DETAILS_URL&#062 &#060DATE_RFC822&#062 &#060BREACHED_ITEMS&#062. Finally, Host, Data Query and Data input replacement can be made. For example, if you have a data input custom data called pending, to perform the replacement use |pending|. For Data Query, and Host replacement use Cacti conventions |query_xxxx|, and |host_xxxx| respectively.
An RPN Expression is an RRDtool Compatible RPN Expression. Syntax includes all functions below in addition to both Device and Data Query replacement expressions such as <span style="color:blue;">|query_ifSpeed|</span>. To use a Data Source in the RPN Expression, you must use the syntax: <span style="color:blue;">|ds:dsname|</span>. For example, <span style="color:blue;">|ds:traffic_in|</span> will get the current value of the traffic_in Data Source for the RRDfile(s) associated with the Graph. Any Data Source for a Graph can be included.<br>Math Operators: <span style="color:blue;">+, -, /, *, &#37;, ^</span><br>Functions: <span style="color:blue;">SIN, COS, TAN, ATAN, SQRT, FLOOR, CEIL, DEG2RAD, RAD2DEG, ABS, EXP, LOG, ATAN, ADNAN</span><br>Flow Operators: <span style="color:blue;">UN, ISINF, IF, LT, LE, GT, GE, EQ, NE</span><br>Comparison Functions: <span style="color:blue;">MAX, MIN, INF, NEGINF, NAN, UNKN, COUNT, PREV</span>%s %s
This Threshold will be Templated. When using the Threshold Template option, you will be prompted for a Threshold Template, Graph Template, Device and possibly Data Query Item information before receiving the 'Create' prompt at which time, if any overridable Graph or Data Source information is allowed at the Graph and Data Source Template level, you will be prompted for it. Then, by pressing the 'Create' button, both the Graph and Threshold will be created simultaneously.