resize the buf allocation as dynamic allocate.

fujuntang

2021-09-07 a300adf15342aa4d3b030698d40d61edb6272ea0

 src/logger_factory.cpp

@@ -18,7 +18,7 @@
   config.logFile = logFile;

#ifdef BUILD_Debug
   config.level = Logger::INFO;
   config.level = Logger::DEBUG;
   config.console = 1;
#else
   config.level = Logger::ERROR;