上面的报错是在本地java调试(windows) hadoop集群 出现的 解决方案: 在resources文件夹下面创建一个文件log4j.properties(这个其实hadoop安装目录下的 etc/hadoop/log4j.properties 同名,我尝试拿过来用,发现还是不行报错信息如下) log4j:WARN No appenders could be found for logger (org.apache.hadoop.metrics2.lib.MutableMetricsFa…
Log4net PatternLayout 参数 来自: https://logging.apache.org/log4net/log4net-1.2.13/release/sdk/log4net.Layout.PatternLayout.html A flexible layout configurable with pattern string. For a list of all members of this type, see PatternLayout Members. Syst…
在驱动编程学习中,往往需要通过DbgPrint或者KdPrint来输出调试信息,对于Check版本,KdPrint只是DbgPrint的一个宏定义,而对于Free版本,KdPrint将被优化掉.这些输出信息可以通过DebugView对内核的监控来看到. KdPrint is identical to the DbgPrint routine in code that is compiled in a checked build environment. This routine has no e…
研究下wifi参数的含义 #The word of "Default" must not be removed Default CountryRegion= CountryRegionABand= CountryCode= SSID=Dennis2860AP NetworkType=Infra WirelessMode= Channel= BeaconPeriod= TxPower= BGProtection= TxPreamble= RTSThreshold= FragThresho…