sasl(7) 						   Erlang Application Definition						   sasl(7)

NAME

       sasl - The SASL Application

DESCRIPTION

       This section describes the SASL (System Architecture Support Libraries) application which provides the following services:

	 * alarm_handler

	 * overload

	 * rb

	 * release_handler

	 * systools

       The SASL application also includes error_logger event handlers for formatting SASL error and crash reports.

   Note:
       The SASL application in OTP has nothing to do with "Simple Authentication and Security Layer" (RFC 4422).

ERROR LOGGER EVENT HANDLERS

       The following error logger event handlers are defined in the SASL application.

	 sasl_report_tty_h :
	   Formats and writes supervisor reports , crash reports and progress reports to stdio .

	 sasl_report_file_h :
	   Formats and writes supervisor reports , crash report and progress report to a single file.

	 error_logger_mf_h :
	   This  error	logger	writes	all  events  sent  to the error logger to disk. It installs the log_mf_h event handler in the error_logger
	   process.

CONFIGURATION

       The following configuration parameters are defined for the SASL application. See app(5) for more information  about  configuration  parame-
       ters:

	 sasl_error_logger = Value <optional> :
	   Value is one of:

	   tty :
	     Installs sasl_report_tty_h in the error logger. This is the default option.

	   {file,FileName} :
	     Installs sasl_report_file_h in the error logger. This makes all reports go to the file FileName . FileName is a string.

	   false :
	     No SASL error logger handler is installed.

	 errlog_type = error | progress | all <optional> :
	   Restricts the error logging performed by the specified sasl_error_logger to error reports, progress reports, or both. Default is all .

	 error_logger_mf_dir = string() | false<optional> :
	   Specifies in which directory the files are stored. If this parameter is undefined or false , the error_logger_mf_h is not installed.

	 error_logger_mf_maxbytes = integer() <optional> :
	   Specifies how large each individual file can be. If this parameter is undefined, the error_logger_mf_h is not installed.

	 error_logger_mf_maxfiles = 0<integer()<256 <optional> :
	   Specifies how many files are used. If this parameter is undefined, the error_logger_mf_h is not installed.

	 overload_max_intensity = float() > 0 <optional> :
	   Specifies the maximum intensity for overload . Default is 0.8 .

	 overload_weight = float() > 0 <optional> :
	   Specifies the overload weight. Default is 0.1 .

	 start_prg = string() <optional> :
	   Specifies which program should be used when restarting the system. Default is $OTP_ROOT/bin/start .

	 masters = [atom()] <optional> :
	   Specifies  which nodes this node uses to read/write release information. This parameter is ignored if the client_directory parameter is
	   not set.

	 client_directory = string() <optional> :
	   This parameter specifies the client directory at the master nodes. Refer to Release Handling in OTP Design Principles for more informa-
	   tion. This parameter is ignored if the masters parameter is not set.

	 static_emulator = true | false <optional> :
	   Indicates  if the Erlang emulator is statically installed. A node with a static emulator cannot switch dynamically to a new emulator as
	   the executable files are written into memory statically. This parameter is ignored if the masters and client_directory  parameters  are
	   not set.

	 releases_dir = string() <optional> :
	   Indicates where the releases directory is located. The release handler writes all its files to this directory. If this parameter is not
	   set, the OS environment parameter RELDIR is used. By default, this is $OTP_ROOT/releases .

	 utc_log = true | false <optional> :
	   If set to true , all dates in textual log outputs are displayed in Universal Coordinated Time with the string UTC appended.

SEE ALSO

       alarm_handler(3erl) , error_logger(3erl), log_mf_h(3erl), overload(3erl) , rb(3erl) , release_handler(3erl) , systools(3erl)

Ericsson AB							   sasl 2.1.9.3 							   sasl(7)