TimeBasedTriggeringPolicy log4j2 在新的一天发生时不会滚动

Question

我已经使用以下配置配置了 Log4j2，但 TimeBasedTriggeringPolicy 不起作用，我在旧日的日志中获取新日日志，请你帮忙。由于我为 DefaultRollOverStrategy 指定了 "nomax" 属性，因此它会根据大小正确滚动，并且还会创建任意数量的文件，只有 TimeBasedTriggeringPolicy 不起作用。它在前一天的日志文件中写入一天的日志。它确实创建了具有最新日期的新日志文件，但一些日志已登录到前一天的日志中。可能在正确命名文件时遇到问题我不知道。

  {
  "Configuration": {
    "Properties": {
      "Property": [
        {
          "name": "application",
          "value": "myapp"
        }
      ]
    },
    "Appenders": {
      "Console": {
        "name": "Console-Appender",
        "target": "SYSTEM_OUT",
        "PatternLayout": {
          "pattern": "%d{yyyy-MM-dd HH:mm:ss,SSS} ${application} %-5level %marker %t %c{5}  %msg%n"
        },
         "ThresholdFilter": { "level": "error" }
      },
      "RollingFile": [
        {
          "name": "File-Appender",
          "fileName":"${sys:log.path}/${application}.log",
          "filePattern":"${sys:log.path}/${application}-%d{yyyy-MM-dd}-%i.log",
          "PatternLayout": {
            "pattern": "%d{yyyy-MM-dd HH:mm:ss,SSS} ${application} %-5level %marker %t %c{5}  %msg%n"
          },
          "Policies": {
            "TimeBasedTriggeringPolicy": {"interval":"1", "modulate":"true" },
             "SizeBasedTriggeringPolicy": { "size": "5 KB" } 
            },
            "DefaultRolloverStrategy": {"fileIndex":"nomax"}   
        }
      ]
    },
    "loggers": {
      "logger":{
        "name": "com.mycompany",
        "level": "${sys:log.level}",
        "AppenderRef": { "ref": "File-Appender"}
      },
      "root": {
        "level": "error",
        "AppenderRef": { "ref": "Console-Appender" }
      }
    }
  }
}

Answer 1

CronTriggeringPolicy怎么样？这将在每天凌晨 12 点为您触发翻转：

{"CronTriggeringPolicy": {"schedule": "0 0 0,12 * * ?"}

这样一来，它就不会依赖于文件模式，并且绝对应该按照 cron 间隔滚动日志。我也不知道你是怎么确定前几天的日志被包含在翻转中的，但是请确保你的系统时间是同步的。

Answer 2

添加：

    "OnStartupTriggeringPolicy": {"minSize":"0"}

政策解决了问题。

来自log4j2 documentation：

The OnStartupTriggeringPolicy policy causes a rollover if the log file is older than the current JVM's start time and the minimum file size is met or exceeded.

OnStartupTriggeringPolicy Parameters:

minSize: long: The minimum size the file must have to roll over. A size of zero will cause a roll over no matter what the file size is. The default value is 1, which will prevent rolling over an empty file

TimeBasedTriggeringPolicy log4j2 在新的一天发生时不会滚动

TimeBasedTriggeringPolicy log4j2 not rolling over when new day happens

log4j2

rollover