Hello *,

I am a bit stuck to implement a very simple scenario with boost log. I need to limit the size of entire rotation log.

My current logger configuration looks like that:

void setup_logging( channel_settings_t const& settings

                    , std::string const& log_file

                    , std::string const& log_level

                    )

  {

    config_logger_attributes(logging::core::get(), settings, log_level);

    using namespace logging::aux::default_attribute_names;

    //add logging to file (which implicitly deletes the default console logger)

    logging::add_file_log

    (

      keywords::auto_flush = true,

      keywords::open_mode = std::ios::out | std::ios::app,

      keywords::file_name = log_file+"_%N.log",

      keywords::rotation_size = 50 * 1024, // Just for test limit to 50K

      keywords::format = //"%TimeStamp%: [%Channel%] |ThreadId| <%Severity%> %Message%"

        expr::format("%1% : [%2%] |%3%| <%4%> %5%")

        % expr::attr< boost::posix_time::ptime >(timestamp())

        % expr::attr<std::string>(channel())

        % expr::attr<attrs::current_thread_id::value_type>(thread_id())

        % trivial::severity

        % expr::smessage

    )->locked_backend()->set_file_collector

       ( sinks::file::make_collector

         ( keywords::target = "logs"

         , keywords::max_size = 200 * 1024 // just for test limit to 200K

         )

       )

    ;

  }

Unfortunately, I can't find what the target keyword means, despite the fact that it is a target directory. Target directory relating to smth or should there be a full path? Should this target directory exist? I did a test and rotating log files just grow upon the 200K limit.

I just want to have let's say 3 or 4 last rotated log files, the rest should be removed? We already ran into the situation, where the logger used all disc space and the server crashed :(

Any help if very appreciated!

Thanks,

Ovanes