Table of Contents
Filters and handlers in the Logger Hierarchy
Log levels of loggers in the Hierarchy
Loggerthe ' s used in your application is typically organized into a hierarchy, as mentioned elsewhere in this tutorial. This text would take a closer look at how this Logger hierarchy works.When you create a, you Logger pass a name to the Logge
and ASN, provide physical layer load, including channel bandwidth, modulation and coding methods and other parameters.
8 IP Transport hosting: Located in ASN and CSN, providing QoS hosting of IP layer, the main QoS parameters for IP network are IP bandwidth (corresponding to the maximum business rate), and IP packet priority (such as DSCP parameter in DiffServ network).
How WiMAX and IMS realize interconnection
LOG4J Learning Notes
by Heavyz
2003-04-15
Turn from: http://zooo.51.net/heavyz_cs/notebook/log4j.html
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LOG4J Home: http://jakarta.apache.org/log4j
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Index
Class diagram of the log4j
Logger: Log writer
The output method of logger
Naming
JDK built-in log system and jdk built-in log
1. Log functions in Java applications
========================
Generally, Java applications require logging. Currently, the mainstream log recording method is to introduce log4j in the application and use log4j to generate logs. In fact, JDK has its own log system, which is easy to use.
2. Use of Java built-in logs
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Classes related to the jdk built-in log system are included in the java. util. logging package. The following ex
One, 3GPP related protocol documents
3GPP 23.402Architecture Enhancements for NON-3GPP accesse-
Important overall frame structure and process, 3GPP and NON-3GPP switching
3GPP 36.304 User Equipment (UE) procedures in idle mode
Important, the method of gravity separation between 3GPP and NON-3GPP in the idle state of the terminal
3gpp24.302 access to THE3GPP evolved Packet Core (EPC) via NON-3GPP access networks; Stage3
3gpp24.244 Wireless LAN Control Plane protocol for trusted WLAN Accessto EPC
Log4cplus is excellent in many aspects, but it is uncomfortable to use it in some places. I'm not happy with it until I continue to talk about it.I will mention it a little and continue to introduce the knowledge about threads and sockets.
### Some improvements ###
1. The implementation mechanism of user-defined loglevel is not open enough
In article 5, I have introduced how to implement custom loglevel. To achieve better results, I even need to change log4cplus.Source code. :(
2. The mechanism
, appenders, and layouts ). These three types of components work together so that developers can record them based on the type and level of information and control the output format and location of the information at runtime.
3.1 log category hierarchy (loggers)
The primary advantage of log4j over the simple use of the system. Out. println () method is its ability to disable some specific information output without compromising the output of other information. This capability is derived from the
the concept of softswitch in the core network from the R4 version to separate control and bearer, the original MSC is divided into MSC Server (MSC Server) and media Gateway (MGMedia Gateway ). MSC Server implements call control and mobility management, while MG processes media streams. Call Control between mobile Softswitch mainly uses BICC protocol. In the WCDMA R5 stage, the core network introduces the IP Multimedia Subsystem IMS): In view of the N
Log output is a prerequisite for all systems, and many developers may not be able to relate to the JDK logging modules because they often use log4j. What is the connection. How the JDK logging handles the details. This week, first analyze the JDK logging mechanism. * * Starting from the example
The use of JDK logging is simple, as shown in the following code, where you can get a logger by using the static method of the
Python built-in Log Module logging Usage Details, pythonlogging
Introduction to the logging Module
The logging module of Python provides a common log system for third-party modules or applications. This module provides different log levels and records logs in different ways, such as files, http get/POST, SMTP, and Socket. You can even implement specific logging methods by yourself.The logging module has the same mechanism as log4j, but the specific implementation details are different. The modul
. manually modify.
Or manually change it. \ apr-util \ include \ apu. change # define APU_HAVE_APR_ICONV 1 under hw to # define APU_HAVE_APR_ICONV 0. change # define APR_HAS_LDAP 1 under \ apr-util \ include \ apr_ldap.hw to # define APR_HAS_LDAP 0.
5. open projects/log4cxx with Visual Studio VC6 or later. dsw, in turn will ask you to choose the apr, aprutil, xml project working directory, find the corresponding apr in the subdirectory of the apache-log4cxx-0.10.0. dsp, aprutil. dsp, xml. open t
Android 5.0 (Lollipop) event Input System)In fact, the framework and process of the event input subsystem in Android 5.0 have not changed substantially. The Service is implemented under/frameworks/native/services/inputflinger/(4.4 in/frameworks/base/services/input ). The general part is implemented under/frameworks/native/libs/input. In the Android system, InputManagerService (IMS) is used to manage input events ). Its main task is to read event data
When you recently debugged the RESTful API sample, the following error occurred:1 {2"Name": "Exception",3"Message": "Class Yii/web/jsonparser does not exist",4"Code":-1,5"Type": "Reflectionexception",6"File": "/users/desktop/workspaces/php/yii2-ims/vendor/yiisoft/yii2/di/container.php",7"Line": 426,8"Stack-trace": [9"#0/users/desktop/workspaces/php/yii2-ims/vendor/yiisoft/yii2/di/container.php (426): Reflec
evolve and develop towards a full IP address. The bearer of voice, data, multimedia, and other business forms is IP-based; the end-to-end business call model is IP-based; the core network switching and call control of RAN and CN are also IP-based. In the 3G/B3G system planning, the direction of the 3GPP and PP2 specifications determines that the IPv6 router is the development direction of the 3G/B3G network bearer and business applications. In the 3G/B3G IM
recalculate resource age based on the last_modified and time of page fetch in the new page. Further calculate the survival time.
In fact, after a page enters the cache, his survival time is determined, i.e. (resource age) * percent, until it is re-confirmed.
After understanding the percentages, Min Max understands
When squid receives a page request:1. Calculate the age of response,2, if the response age3, if response age between, if response time
The meaning of several commonly used parameters
)/(resource age) of squid ). For such a response, squid calculates the response age and the last modified coefficient, and then compares it as a percentage value. The response age is simply the amount of time that has elapsed since the origin server or after the last verification response. The source age is different between the Last-Modified and Date headers. LM-factor is the ratio of response age to source age.
Meanings of common parameters
Override-expire
This option causes squid to check t
that is generated from the original server, or after the last validation response. The source age is different between the last-modified and the date header. Lm-factor is the ratio of response age to source age.
The meaning of several commonly used parameters
Override-expire
This option causes Squid to check the Min value before checking the expires head. Thus, a non-zero min time allows squid to return an unconfirmed cache hit, even if the response is ready to expire.
Override-lastmod
The re-e
that is generated from the original server, or after the last validation response. The source age is different between the last-modified and the date header. Lm-factor is the ratio of response age to source age.
The meaning of several commonly used parameters
Override-expire
This option causes Squid to check the Min value before checking the expires head. Thus, a non-zero min time allows squid to return an unconfirmed cache hit, even if the response is ready to expire.
Override-lastmod
The
means in this process. The following article describes how to use native C ++ to encapsulate Windows Embedded ce and Windows Mobile log files.
Code
First, go to the code and analyze it below. You can download all itoday code to codeplex.
Class definition file
Typedef Enum Taglog_level{Log_trace,Log_info,Log_warning,Log_error,Log_fatal,Log_none = 10,} Log_level; Class Logger{ Public : Static Logger
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