Yes, if you set sendfile to on in the global configuration, Nginx will enable the sendfile functionality by default in all locations. This means you don't need to set the sendfile parameter in each location unless you want to disable sendfile functionality in a specific location, in which case you would need to set it separately in that location.
In Nginx configuration, client_max_body_size is used to limit the size of the client request body, while the sendfile parameter is used to enable or disable Nginx's sendfile functionality, which allows direct transmission of files between disk and network without passing through user space. These two parameters are independent in configuration, so setting client_max_body_size does not affect whether sendfile on needs to be set.
Generally, sendfile on is recommended to be enabled because it improves file transfer efficiency and performance. However, it is not mandatory, especially in specific scenarios such as handling a large number of small files, where disabling sendfile may be preferred to avoid exhausting file descriptors.
在Nginx配置中，
client_max_body_size用于限制客户端请求体的大小，而sendfile参数用于启用或禁用Nginx的sendfile功能，该功能用于在磁盘和网络间直接传输文件，而不是通过用户空间来传输。这两个参数在配置中是相互独立的，因此设置了client_max_body_size并不影响是否需要设置sendfile on。通常情况下，
sendfile on是建议开启的，因为它能够提高文件传输效率和性能。但它并不是必须的，特别是在一些特定的情况下，例如处理大量小文件的场景，可能会选择关闭sendfile以避免文件描述符的耗尽。是的，如果在全局配置中将
sendfile设置为on，那么Nginx将会默认在所有的location中启用sendfile功能。这意味着你不需要在每个location中去设置sendfile参数，除非你希望在某个特定的location中禁用sendfile功能，才需要在该location中单独设置。Yes, if you set
sendfiletoonin the global configuration, Nginx will enable the sendfile functionality by default in all locations. This means you don't need to set thesendfileparameter in each location unless you want to disable sendfile functionality in a specific location, in which case you would need to set it separately in that location.In Nginx configuration,
client_max_body_sizeis used to limit the size of the client request body, while thesendfileparameter is used to enable or disable Nginx's sendfile functionality, which allows direct transmission of files between disk and network without passing through user space. These two parameters are independent in configuration, so settingclient_max_body_sizedoes not affect whethersendfile onneeds to be set.Generally,
sendfile onis recommended to be enabled because it improves file transfer efficiency and performance. However, it is not mandatory, especially in specific scenarios such as handling a large number of small files, where disabling sendfile may be preferred to avoid exhausting file descriptors.