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Since both Redis servers are installed on the Linux operating system, and the two Redis servers will switch when the Master master server fails, it must be ensured that the port numbers of the two Redis servers have been added to the firewall, or the firewalls of the two Linux operating systems have been shut down, otherwise Master-link-Status: down will be prompted, and Master master server is not connected. There are two solutions: the first is to shut down the firewalls of the two Linux operating systems; The second method is to add the port number of each Redis service to the firewall to allow communication through the port number. You can use the command "firewall-cmd-query-port=6379/tcp" first. If the result is No, you can continue to execute the following command "firewall-cmd-add-port=6379/tcp". After the command is executed, you will return Success, indicating that the increase was successful. In this way, Redis servers on the two Linux systems can be switched smoothly to perform sentinel mode operations.Secret Code of Absolute Poison: For every 100 evil points, the [skill damage] of draining blood from the vertebral heart, destroying the heart and cutting the liver is +50%, and the difference between ourselves and the enemy is +100% for every 100 points of poison.山芋从偏厅冲出来喊道：快来吃饭。服刑期满后，他不但恶习未改，反而更加凶残。1985年6月,刚刚出狱,就伙同金林、张谨玉在西宁火车站商埸盗窃价值4万多元的冬虫夏草等中药材,在西安市销赃得1.8万元。为了避风,逃到河南许昌,在小饭馆为了争一条凳子杀死一人,重伤一人.在峨眉山因为琐事将张谨玉推下山崖.之后，他流窜到社会，纠集出狱的“难友”多次抢劫。The objects introduced by require are mainly functions. When Node calls the require () function and passes a file path to it, Node goes through the following steps:周青与佛教相争，为了就是杀劫中，保全自身的名额。