腾讯云

开发者社区

文档建议反馈控制台

首页

文章/答案/技术大牛

发布

社区首页 >问答首页 >nginx日志无法保存，第二天会被清除，不知道是为什么？

问nginx日志无法保存，第二天会被清除，不知道是为什么？

提问于 2018-02-11 20:55:00

回答 4关注 0查看 1.8K

我昨天开启了nginx日志功能，并也看到了生成的日志。但我今天凌晨的时候发现昨天的日志内容没有了。我也并没有在log目录中看任何诸如access.log.2018.02.12这样类似格式的文件。这让我很担心，不知道是配置方面的问题，还是被黑客攻击了。把我日志清除了。我nginx开启日志的配置如下：

user root;

worker_processes 4;

#error_log /dev/null;

error_log logs/error.log;

#error_log logs/error.log notice;

#error_log logs/error.log info;

pid conf/nginx.pid;

worker_rlimit_nofile 1024;

events {

use epoll;

worker_connections 1024;

}

http {

include mime.types;

default_type application/octet-stream;

include proxy.conf;

log_format yundns_log '$server_name $remote_addr [$time_local] "$request" $status $body_bytes_sent "$http_referer" "$http_user_agent"';

log_format main '$remote_addr - $remote_user [$time_local] "$request" '

# '$status $body_bytes_sent "$http_referer" '

# '"$http_user_agent" "$http_x_forwarded_for"';

access_log logs/access.log main;

server_tokens off;

sendfile on;

tcp_nopush on;

server_names_hash_bucket_size 256;

client_header_buffer_size 256k;

#large_client_header_buffers 4 32k;

large_client_header_buffers 4 256k;

client_body_buffer_size 256k;

client_header_timeout 3m;

client_body_timeout 3m;

send_timeout 3m;

client_max_body_size 50m;

keepalive_timeout 120;

fastcgi_intercept_errors on;

fastcgi_connect_timeout 300;

fastcgi_send_timeout 300;

fastcgi_read_timeout 300;

#fastcgi_buffer_size 64k;

#fastcgi_buffers 8 64k;

#fastcgi_busy_buffers_size 128k;

#fastcgi_temp_file_write_size 128k;

fastcgi_buffer_size 128k;

fastcgi_buffers 4 256k;

fastcgi_busy_buffers_size 256k;

fastcgi_temp_file_write_size 256k;

gzip on;

gzip_min_length 1k;

gzip_buffers 4 16k;

gzip_http_version 1.0;

gzip_comp_level 2;

gzip_types text/plain application/x-javascript text/css application/xml;

gzip_vary on;

server {

listen 80;

server_name image.coolcarstime.com image1.coolcarstime.com;

#access_log off;

.....................................................................................................

nginx

能源企业营销数智人解决方案

对接行业模型开箱即用，可替代传统的问答对梳理与对话树设计等繁重人力工作

回答 2

Crash

发布于 2018-03-23 05:54:31

看看这段代码

$(document).ready(function() {
    $('.story-small img').each(function() {
        var maxWidth = 100; // Max width for the image
        var maxHeight = 100;    // Max height for the image
        var ratio = 0;  // Used for aspect ratio
        var width = $(this).width();    // Current image width
        var height = $(this).height();  // Current image height

        // Check if the current width is larger than the max
        if(width > maxWidth){
            ratio = maxWidth / width;   // get ratio for scaling image
            $(this).css("width", maxWidth); // Set new width
            $(this).css("height", height * ratio);  // Scale height based on ratio
            height = height * ratio;    // Reset height to match scaled image
            width = width * ratio;    // Reset width to match scaled image
        }

        // Check if current height is larger than max
        if(height > maxHeight){
            ratio = maxHeight / height; // get ratio for scaling image
            $(this).css("height", maxHeight);   // Set new height
            $(this).css("width", width * ratio);    // Scale width based on ratio
            width = width * ratio;    // Reset width to match scaled image
            height = height * ratio;    // Reset height to match scaled image
        }
    });
});

圣安德烈

发布于 2018-03-23 06:59:37

一个非常规的做法:

 /**
  * Conserve aspect ratio of the orignal region. Useful when shrinking/enlarging
  * images to fit into a certain area.
  *
  * @param {Number} srcWidth width of source image
  * @param {Number} srcHeight height of source image
  * @param {Number} maxWidth maximum available width
  * @param {Number} maxHeight maximum available height
  * @return {Object} { width, height }
  */
function calculateAspectRatioFit(srcWidth, srcHeight, maxWidth, maxHeight) {

    var ratio = Math.min(maxWidth / srcWidth, maxHeight / srcHeight);

    return { width: srcWidth*ratio, height: srcHeight*ratio };
 }