high volume logging

【high volume logging】的更多相关文章

logging 是现在系统中必不可少的组件了.市面上已经有很多很多非常成熟的日志产品,log*系列就是一个典型代表.对于erlang系统来说,也有很多,比如error_logger, disk_log, sasl, log4erl, ejabberd logger, elog, lager等等.做的都非常棒,这里不是给大家讲logging的技术.主要是分享一下今天看到一个问答,有一句话“On high volume logging I prefer battle tested solutions…

Java中实现SAX解析xml文件到MySQL数据库

大致步骤: 1.Java bean 2.DBHelper.java 3.重写DefaultHandler中的方法:MyHander.java 4.循环写数据库:SAXParserDemo.java ①xml文件:(要把第二行dtd的绑定删掉) 1 <?xml version="1.0" encoding="utf-8" ?> 2 <!DOCTYPE dblp SYSTEM "dblp.dtd"> 3 <dblp>…

手动模拟attach cinder volume的过程

我们首先启动一台机器,启动的时候attach一个volume 创建一个空的cinder volume root:~# cinder create --display-name emptyvolume11g 11+---------------------+--------------------------------------+| Property | Value |+--------------------…

touch: cannot touch ‘/var/jenkins_home/copy_reference_file.log’: Permission denied Can not write to /var/jenkins_home/copy_reference_file.log. Wrong volume permissions?

问题:在从 https://c.163.com/hub#/m/repository/?repoId=3093 下载镜像 docker pull hub.c.163.com/library/jenkins:latest后,启动容器时,报错: [admin@3-29 ~]$ sudo docker run --name myjenkins-slave1 -p 8080:8080 -v /var/lib/jenkins:/var/jenkins_home hub.c.163.com/library/j…

Trace Logging Level

Trace In functions which support this level, details every parameter and operation to help diagnose subtle bugs. This should only be enabled for specific areas of interest or the log volume will be overwhelming. Some system performance degradation sh…

Log4j2 - Unable to invoke factory method in class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingFileAppender for element RollingFile

问题与分析在使用Log4j2时,虽然可以正确读取配置文件并生成log文件,但偶然发现控制台打印了异常信息如下: 2018-12-31 17:28:14,282 Log4j2-TF-19-ConfiguratonFileWatcher-6 ERROR Unable to invoke factory method in class org.apache.logging.log4j.core.appender.RollingFileAppender for element RollingFile:…