Questions tagged [log4cxx]

Apache log4cxx is a logging framework for C++ patterned after Apache log4j. Apache log4cxx uses Apache Portable Runtime for most platform-specific code and should be usable on any platform supported by APR. Apache log4cxx is licensed under the Apache License, an open source license certified by the Open Source Initiative.

Apache log4cxx is a logging framework for C++ patterned after Apache log4j. Apache log4cxx uses Apache Portable Runtime for most platform-specific code and should be usable on any platform supported by APR. Apache log4cxx is licensed under the Apache License, an open source license certified by the Open Source Initiative.

Almost every large application includes its own logging or tracing API. Inserting log statements into code is a low-tech method for debugging it. It may also be the only way because debuggers are not always available or applicable. This is usually the case for multithreaded applications and distributed applications at large.

Experience indicates that logging is an important component of the development cycle. It offeres several advantages. It provides precise context about a run of the application. Once inserted into the code, the generation of logging output requires no human intervention. Moreover, log output can be saved in persistent medium to be studied at a later time. In addition to its use in the development cycle, a sufficiently rich logging package can also be viewed as an auditing tool.

Logging does have its drawbacks. It can slow down an application. If too verbose, it can cause scrolling blindness. To alleviate these concerns, log4cxx is designed to be reliable, fast and extensible. Since logging is rarely the main focus of an application, the log4cxx API strives to be simple to understand and to use.

Official Website: http://logging.apache.org/log4cxx/

Useful Links:

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undefined symbol - using log4cxx in centos 7

I've difficulty to make my snippet code working on centos 7. So, I've these packages installed on the box: log4cxx.x86_64, log4cxx-devel.x86_64, apr.x86_64, apr-devel.x86_64, apr-util.x86_64, apr-util-devel.x86_64, glib2.x86_64, …
atari83
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Need help creating log4cxx appender using Eclipse in Ubuntu

When attempting to inherit from AppenderSkeleton I get "error: expected class-name before ‘{’ token " when I attempt to compile. I seems to not be recognizing the class but I am referencing the log4cxx library and have included the…
grant
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Log4cxx macro is not working with string contain null character

I am working on client server application.we have protocol format to send and query data from Server. Now I need to log the data coming from or to server on the log file. I am using latest version of Log4cxx. But this binary data contains null…
Vikram Ranabhatt
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log4c rollingpolicy append="true" not happening after calling log4c_fini()

As per our requirement we need to append the logs in a file until the given file size is reached. before reaching the file size as set 100MB we need to call log4c_fini() and after this we are calling log4c_init(). at this moment a new file is…
Simon
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How to keep single file and overwrite the contents in the same file using log4cxx?

In my application , Multiple threads log the data in the same file .if the file size exceeds the limit , then i have to delete the particular record in file and move every contents upwards. can I do this in Log4cxx?if so ,reply your…
karthik
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Cannot open include file: 'log4cxx\logger.h': No such file or directory

Is there any API for log4cxx?if so specify the location to download? Thanks
karthik
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issues with WS2_32.dll behavior between windows 10 vs windows7

Did not find any suitable solution with existing questions so asking new question here. We use log4cxx which has WS2_32.LIB as dependency. WS2_32.LIB is present in Windows SDK version 10.0.16299.0. When using this log4cxx.dll on windows7 WS2_32.dll…
novice
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Configuration with custom and dynamic appender with log4cxx

I want to create in the code an appender for loggers but at the same time I'd like to have the configuration on the properties file. I'm creating the appender in this way: class Foo { private: LoggerPtr logger; public: Foo(int id) { …
greywolf82
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Using Log4cxx in CMake

I try to use log4cxx in my project. I installed log4cxx: sudo apt-get install liblog4cxx-dev But, when I use CMakeLists.txt: find_package(log4cxx) It gives an error: Could not find a package configuration file provided by "log4cxx" with any of the…
GAVD
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How to turn off logging in log4c, which is the configuration parameter used in xml file

I am using log4c library with xml configuration log4crc and I need to figure out how to turn off/on logging. I could not find any document explaining the parameters in log4crc configuration file,
Alisha
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How to use Kafka+log4cxx for log aggregation

I used log4cxx as the log module in my C++ project. Now I want to manage my debug logs more properly. A possible approach is to use Apache Kafka. I know it is ok to use Kafka in a Java project where log4j is adopted. But when it comes to log4cxx,…
flyingrose
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Defining custom filters with log4cxx

I know Log4cxx supports filtering logs according to their severity level (error, warning,etc.), but is there a way to set custom filters for loggers (in the form of functions to be called upon evaluating a logger, for example)? I know that…
omer
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Print Log4CXX exception stacktrace

Using Log4CXX_ERROR I can only print e.what(). catch (const std::exception e) { logger->error("exception:" << e.what()); //logger->error("exception:" << e); //not allowed } How can I print exception stack trace using log4cxx?
SMUsamaShah
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log4cxx: sending log to log server?

We have a single threaded application and has to remain single threaded for some reasons. We have a large volume of runtime debug log using log4cxx. What's the best way to do the logging without impact the performance of the application? I know…
user4918159
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