Coyote Point Systems Equalizer, Руководство по установке и администрированию

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Match Group Parameters
Equalizer Installation and Administration Guide 117
Match Group Parameters
Any number of match rules can be specified within a cluster block. Match rules are
evaluated in the order in which they appear. Within each match rule block, you can use
the following parameters to specify the match rule and the server’s associated with the
rule. Some match group parameters are only applicable for clusters that support particular
protocols.
servers
This is the subset of the cluster's servers to which requests that meet the requirements of
the match rule can be routed. If no servers are specified, all servers will be used.
Match Group Expression Functions
All match groups support the following functions.
■
any()—This matches any L7 protocol request.
HTTP-Specific Match Group Parameters
flags
All the HTTP-specific cluster flags can be set. To clear out those inherited from the cluster,
it is necessary to use none, as in:
flags = none, persist;
The following parameters are also available.
■
cookie_scheme
■
cookie_max_age
■
cookie_domain
■
cookie_path
■
cookie_flags
HTTP-Specific Match Group Expression Functions.
The following functions are provided for HTTP based clusters.
■
http_09()—True if the HTTP request is made using the HTTP 0.9 protocol level.
■
host(“name”)—True if the host specified in the request exactly matches.
■
host_suffix(“suff”)—True if the host specified in the request has the specified suffix.
■
filename_prefix(“pref”)—True if the filename portion of the URI has the specified
prefix.
■
filename_suffix(“suff”)—True if the filename portion of the URI has the specified
suffix.