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SEVERE: Unable to join multicast group, make sure your system has multicasting enabled.

    组建tomcat集群时明明配置都没问题,tomcat就是起不来,查看日志得到

SEVERE: Unable to join multicast group, make sure your system has multicasting enabled.

的信息,最后才知道,没有设置网关。。。。。。。真坑!!!记录下来第一个坑!!!

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SEVERE: Unable to join multicast group, make sure your system has multicasting enabled.