Apache + Tomcat ：重复转发请求问题解决
参考：http://tomcat.apache.org/connectors-doc/reference/workers.html
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配置：Apache 2.2\conf\workers.properties
worker.worker1.socket_timeout=300worker.worker1.retries=1
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解释：
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retriesAJP,SUB2This directive also exists for load balancer workers. For those it has a different meaning.
The maximum number of times that the worker will send a request to Tomcat in case of a communication error. Each retry will be done over another connection. The first time already gets counted, so retries=2 means one retry after error. Before a retry, the worker waits for a configurable sleeping time.See also the attribute recovery_options for a more fine-grained control of retries and retry_interval for the sleep time configuration.
Until version 1.2.16 the default value was 3.