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nginx的日志配置可以参见《nginx日志配置指令详解》一文。如果要想以json格式记录nginx日志以便logstash分析,该如何指定日志格式呢?可以按照下面的格式来实现。
定义nginx日志格式:
复制代码 代码如下:
log_format logstash_json "{ "@timestamp": "$time_local", "
                         ""@fields": { "
                         ""remote_addr": "$remote_addr", "
                         ""remote_user": "$remote_user", "
                         ""body_bytes_sent": "$body_bytes_sent", "
                         ""request_time": "$request_time", "
                         ""status": "$status", "
                         ""request": "$request", "
                         ""request_method": "$request_method", "
                         ""http_referrer": "$http_referer", "
                         ""body_bytes_sent":"$body_bytes_sent", "
                         ""http_x_forwarded_for": "$http_x_forwarded_for", "
                         ""http_user_agent": "$http_user_agent" } }";

指定记录日志格式:
复制代码 代码如下:
access_log  /data/logs/nginx/www.jb51.net.access.log  logstash_json;

日志输出如下:

不利于阅读。复制到http://jsonlint.com/美化下格式。