log4perl

How can log4perl write to STDERR and a file at the same time?

由 房东的猫 提交于 2021-02-07 09:01:14
问题 I tried to set up two appenders, but it seems to only write to STDERR: my $header = "######$scriptname $version"; use Log::Log4perl qw(:easy); Log::Log4perl->easy_init($DEBUG); my $logger = get_logger(); my $layout = Log::Log4perl::Layout::PatternLayout->new( "%d %p> %F{1}:%L %M - %m%n"); my $appender = Log::Log4perl::Appender->new( "Log::Dispatch::File", filename=>$scriptname.".log", mode => "append" ); $appender->layout($layout); my $stderr = Log::Log4perl::Appender::Screen->new( stderr =>0

How can log4perl write to STDERR and a file at the same time?

由 拟墨画扇 提交于 2021-02-07 09:00:33
问题 I tried to set up two appenders, but it seems to only write to STDERR: my $header = "######$scriptname $version"; use Log::Log4perl qw(:easy); Log::Log4perl->easy_init($DEBUG); my $logger = get_logger(); my $layout = Log::Log4perl::Layout::PatternLayout->new( "%d %p> %F{1}:%L %M - %m%n"); my $appender = Log::Log4perl::Appender->new( "Log::Dispatch::File", filename=>$scriptname.".log", mode => "append" ); $appender->layout($layout); my $stderr = Log::Log4perl::Appender::Screen->new( stderr =>0

How can log4perl write to STDERR and a file at the same time?

由 假如想象 提交于 2021-02-07 08:59:25
问题 I tried to set up two appenders, but it seems to only write to STDERR: my $header = "######$scriptname $version"; use Log::Log4perl qw(:easy); Log::Log4perl->easy_init($DEBUG); my $logger = get_logger(); my $layout = Log::Log4perl::Layout::PatternLayout->new( "%d %p> %F{1}:%L %M - %m%n"); my $appender = Log::Log4perl::Appender->new( "Log::Dispatch::File", filename=>$scriptname.".log", mode => "append" ); $appender->layout($layout); my $stderr = Log::Log4perl::Appender::Screen->new( stderr =>0

How to set two appenders with different log levels in Log::Log4perl?

由 百般思念 提交于 2020-12-04 02:20:33
问题 I have a logger with two appenders (one Screen and other File). I want to have a Screen appender with a variable log level that can be changed and File appender that will log everything no matter what. So for instance, you can disable any output to screen (Screen appender) but get full logging to the level of TRACE in your logfile (File appender). I succeeded in getting changing Screen appender but I can't set File appender for the same logger to the level of TRACE. I tried using different

Limiting log size with log4perl

由 被刻印的时光 ゝ 提交于 2019-12-24 08:16:11
问题 I want to limit the size of log files created with log4perl. I don't want my log file to grow to more than about 100mb; I only need the last 100mb (or thereabouts) of data. Ideally, it would truncate earlier data and only keep the last bits. I'm aware of the Log::Dispatch::FileRotate module, but that doesn't quite meet my requirements, as I don't want multiple log files. Is this possible? Full code, including inline config, below (minus the use statements): my $log_conf = q/ log4perl.category

Directing significant-event messages to a separate Log::Log4perl logger

由 余生颓废 提交于 2019-12-23 02:49:06
问题 I need to collect significant-event messages to a separate log file. (The regular log is rather bloated, and meant for maintenance, while the user is only interested in very few events.) The events are not level related, although all ERROR level and up events are considered "significant". Many such events are of INFO or WARN levels. Therefore, level thresholds or matching don't seem to be the answer. Also, events are not limited to a given branch of the hierarchy. These can emanate from all

Log4Perl bundling logging from several programs into one log

由 萝らか妹 提交于 2019-12-12 14:50:05
问题 Is there any Logger on CPAN which allows me to bundle logs from several programs into one file with synchronising parallel logging when two programs run the same time and call log4Perl in parallel. Background is that I use a custom appender which writes Emails and I would like to bundle all emails in a single file as a backup in case the mail server has problems. 回答1: You can do that in two main ways: with Log::Log4perl::Appender::File (and its descendants) with the 'syswrite' option, which

Directing significant-event messages to a separate Log::Log4perl logger

由 爱⌒轻易说出口 提交于 2019-12-08 03:38:26
I need to collect significant-event messages to a separate log file. (The regular log is rather bloated, and meant for maintenance, while the user is only interested in very few events.) The events are not level related, although all ERROR level and up events are considered "significant". Many such events are of INFO or WARN levels. Therefore, level thresholds or matching don't seem to be the answer. Also, events are not limited to a given branch of the hierarchy. These can emanate from all over the application, so "categories" don't seem to fit either, or do they? Edit: Currently, I have an

Self logging Perl modules (without Moose)

由 雨燕双飞 提交于 2019-12-05 04:12:37
问题 I have the same question as was asked HERE but unfortunately I cannot install Moose and I think the solution described there was particular to Moose. Can someone tell me how to the same in old school "use base" speak? To reiterate the question, I would like to have my base classes to have an automatic logging mechanism using Log4perl so if the user does not do anything I get some reasonable logging but if the user of my class needs/wants to overwrite the logger they can. 回答1: Well, if you

Self logging Perl modules (without Moose)

由 放肆的年华 提交于 2019-12-03 20:34:55
I have the same question as was asked HERE but unfortunately I cannot install Moose and I think the solution described there was particular to Moose. Can someone tell me how to the same in old school "use base" speak? To reiterate the question, I would like to have my base classes to have an automatic logging mechanism using Log4perl so if the user does not do anything I get some reasonable logging but if the user of my class needs/wants to overwrite the logger they can. Well, if you want to have role/mixin type behavior and such just like in the other answer, you could use vanilla multiple
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