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Yes, if there are 7 people in a group, we will have 7.Of course, we can also set the number of retransmissions to 0, so that the server will automatically delete the connection entry from the backlog queue if it has not received the ack acknowledgement packet within 3 seconds.NBC剧集《罪恶黑名单》宣布续订第8季。 该剧也刚庆祝了总第150集开拍，目前播到第7季，下半季将于3月20日回归，本季和第6季的收视都较为稳定，是续订因素之一。60万粉丝和一个跟踪者：在这个来自波兰的Instagram剧情片中，舞台化的生活与不加掩饰的现实发生了碰撞。Sylwia过着#thesweatlife的生活：作为一个充满自信的健身教练，她吸引了大批粉丝。这位Ins女王和她的爱犬Jackson一起，住在华沙一间宽敞的公寓，每天的生活就是自拍发帖发推广，健身瑜伽养生茶。但当她的一位粉丝想要从她那里得到网络之外的东西并跟踪她回家时，Sylwia的完美生活开始解体。Decorator mode is also called Wrapper mode, which can dynamically add some additional functions to an object. Decorator mode is more flexible than the way of inheriting and generating subclasses. Although decorator mode can dynamically attach responsibilities to objects, it will also cause some small objects to be generated, increasing the complexity of the system. The specific structure diagram is shown below.(2) When the NIO thread is overloaded, the processing speed will slow down, which will lead to a large number of client connections timeout, which will often be retransmitted after timeout, which will further increase the load on the NIO thread and eventually lead to a large number of message backlogs and processing timeout, thus becoming the performance bottleneck of the system;