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.. _header_freq-plugin:
Header Frequency Plugin
***********************
.. Licensed to the Apache Software Foundation (ASF) under one
or more contributor license agreements. See the NOTICE file
distributed with this work for additional information
regarding copyright ownership. The ASF licenses this file
to you under the Apache License, Version 2.0 (the
"License"); you may not use this file except in compliance
with the License. You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing,
software distributed under the License is distributed on an
"AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
KIND, either express or implied. See the License for the
specific language governing permissions and limitations
under the License.
The Header Frequency plugin keeps track of the number of times headers
have been seen in transactions. Two separate counteres are kept for
the origin and the client. This information is accessible via ::
traffic_ctl plugin msg header_freq log
Installation
------------
This plugin is only built if the configure option ::
--enable-experimental-plugins
is given at build time.
Add the following line to :file:`plugin.config`::
header_freq.so