Syntax for Node Labels File

Each line in the node labels file consists of an identifier (a regular expression that identifies one or more nodes), whitespace to separate the identifier from the labels, followed by one or more labels (separated by commas, whitespace, or both) to apply to the specified nodes. If a label contains two or more words (such as "High Memory"), enclose the name in single or double quotation marks so the whitespace is not interpreted as a delimiter between two labels.

<identifier> <label1>[,<label2>,...,<labeln>]

The identifier specifies nodes by matching the node names or IP addresses in one of two ways:

• Unix-style glob which supports the ? and * wildcards

• Java regular expressions, which must be enclosed within forward slashes. For example, to select nodes with names beginning with node0 to node5 followed by .example.com, use the regular expression /node[0-5].example.com/. Refer to https://docs.oracle.com/javase/6/docs/api/java/util/regex/Pattern.html for more information on regular expression constructs.