snmpa_error(3erl) Erlang Module Definition snmpa_error(3erl)NAME
snmpa_error - Functions for Reporting SNMP Errors
DESCRIPTION
The module snmpa_error contains two callback functions which are called if an error occurs at different times during agent operation. These
functions in turn calls the corresponding function in the configured error report module, which implements the actual report functionality.
Two simple implementation(s) is provided with the toolkit; the modules snmpa_error_logger which is the default and snmpa_error_io .
The error report module is configured using the directive error_report_mod , see configuration parameters .
EXPORTS
config_err(Format, Args) -> void()
Types Format = string()
Args = list()
The function is called if an error occurs during the configuration phase, for example if a syntax error is found in a configuration
file.
Format and Args are as in io:format(Format, Args) .
user_err(Format, Args) -> void()
Types Format = string()
Args = list()
The function is called if a user related error occurs at run-time, for example if a user defined instrumentation function returns
erroneous.
Format and Args are as in io:format(Format, Args) .
Ericsson AB snmp 4.19 snmpa_error(3erl)
Check Out this Related Man Page
log_mf_h(3erl) Erlang Module Definition log_mf_h(3erl)NAME
log_mf_h - An Event Handler which Logs Events to Disk
DESCRIPTION
The log_mf_h is a gen_event handler module which can be installed in any gen_event process. It logs onto disk all events which are sent to
an event manager. Each event is written as a binary which makes the logging very fast. However, a tool such as the Report Browser ( rb )
must be used in order to read the files. The events are written to multiple files. When all files have been used, the first one is re-used
and overwritten. The directory location, the number of files, and the size of each file are configurable. The directory will include one
file called index , and report files 1, 2, .... .
EXPORTS
init(Dir, MaxBytes, MaxFiles)
init(Dir, MaxBytes, MaxFiles, Pred) -> Args
Types Dir = string()
MaxBytes = integer()
MaxFiles = 0 < integer() < 256
Pred = fun(Event) -> boolean()
Event = term()
Args = args()
Initiates the event handler. This function returns Args , which should be used in a call to gen_event:add_handler(EventMgr,
log_mf_h, Args) .
Dir specifies which directory to use for the log files. MaxBytes specifies the size of each individual file. MaxFiles specifies how
many files are used. Pred is a predicate function used to filter the events. If no predicate function is specified, all events are
logged.
SEE ALSO gen_event(3erl) , rb(3erl)Ericsson AB stdlib 1.17.3 log_mf_h(3erl)
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