linux平滑重启php-fpm

修改了php配置需要平滑启动php-fpm

ps -aux | grep php-fpm 

找到phpfpm 的master process的进程id

kill -SIGUSR2 process_id实现平滑重启php-fpm

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.B SIGUSR2 fPgraceful reload of all workers + reload of fpm conf/binary