I am using following log pattern property in log configuration of logback.
<property name="FILE_LOG_PATTERN" value="%d{yyyy-MM-dd HH:mm:ss.SSS} %5p ${PID:- } --- [%t] : [%X{requestContext}] [%X{transactionId}] - %m%n"/>
Unfortunately, when I log request and response, time stamp is exactly same. However when I manually checks, response takes more than 2 seconds
2016-09-12 09:57:39.925 DEBUG 5955 --- [http-nio-1980-exec-1] : Request:
2016-09-12 09:57:39.925 DEBUG 5955 --- [http-nio-1980-exec-1] : Response:
Since my code is not adding logging time, I believe I am missing something. What can it be?
logback is also taking up to 30 secs to log something. But i believe it is because of queue. And it has no relation with above issue.
I couldn't find solution for that. So I used two loggers to log the request and response. Unfortunately it dint work. So, finally, I broke the logging filter in 2 separate classes. I am not sure if it is logging the correct time. But at least the time is not same now.
Related
I want the log file to be empty every time I start the application. But I cannot find a way to do so. There is nothing stated as such in the Quarkus documentation (https://quarkus.io/guides/logging#quarkus-log-logging-log-config_quarkus.log.file-file-logging).
I would really appreciate if someone can tell me how to do it or suggest a workaround in case it is not possible.
This is the logging configurations in the application properties file
# Log
quarkus.log.category."com.helesto".level=DEBUG
quarkus.log.level=INFO
# Log File
quarkus.log.file.enable = true
quarkus.log.file.format = %d{yyyy-MM-dd HH:mm:ss,SSS} %-5p [%c{3.}] (%t) %s%e%n
quarkus.log.file.path = logs/test.log
I configured quarkus to begin a new file on reboot.
As documented here you need to either set a max-file-size or configure a file-suffix for it to work.
This is my working configuration:
quarkus.log.file.enable= true
quarkus.log.file.path= /log/backend.log
quarkus.log.file.level= DEBUG
quarkus.log.file.format= %d{HH:mm:ss} %-5p [%c{2.}] (%t) %s%e%n
quarkus.log.file.rotation.file-suffix= .yyyy-MM-dd
quarkus.log.file.rotation.rotate-on-boot= true
quarkus.log.file.rotation.max-backup-index= 31
with this configuration it produces a daily log and begin a new file on reboot up to maximum 31 files.
My Springboot version is 2.0.6 and my configuration is as follows:
server.undertow.accesslog.pattern=%t [%I] %{i,X-Forwarded-For}: %m %U%q status:%s spent:%Dms
However the log is as follows
[08/Nov/2018:18:53:40 +0800] [XNIO-5 task-22] 27.115.62.146: GET /launcher/uCenter/setting?interval=2&settingId=5bcef714c111971540fc7bf9 status:200 spent:-ms
As you saw at the time of processing this request was invalid.
What would have happened?
I want to create 2 types of log 1 Debug log which will create all log another I want to create activity log I mean each method how much time took to execute or any specific info,
I am using below log4j property file-
please correct me, its logging all messages in only one file,in java I have instantiated both log object, kindly don't send any pointers or just Google because I have tried since last 2 days all options as described in Google,
Thanks in advance for your kind support,
log4j.rootLogger=debugLog,reportsLog
log4j.appender.debugLog=org.apache.log4j.FileAppender
log4j.appender.debugLog.File=logs/debug.log
log4j.appender.debugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.debugLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.appender.reportsLog=org.apache.log4j.FileAppender
log4j.appender.reportsLog.File=logs/reports.log
log4j.appender.reportsLog.layout=org.apache.log4j.PatternLayout
log4j.appender.reportsLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.category.debugLogger=INFO, debugLog
log4j.additivity.debugLogger=false
log4j.category.reportsLogger=DEBUG, reportsLog
log4j.additivity.reportsLogger=false
Below log4j.properties file will configure the logger to log the messages with debug level to the logs/debug.log file. Messages with level INFO...FATAL are logged to logs/reports.log.
log4j.rootLogger=DEBUG, debugLog, reportsLog
log4j.appender.debugLog=org.apache.log4j.FileAppender
log4j.appender.debugLog.File=logs/debug.log
log4j.appender.debugLog.layout=org.apache.log4j.PatternLayout
log4j.appender.debugLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.appender.debugLog.filter.f1=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.debugLog.filter.f1.LevelMax=DEBUG
log4j.appender.debugLog.filter.f1.LevelMin=DEBUG
log4j.appender.reportsLog=org.apache.log4j.FileAppender
log4j.appender.reportsLog.File=logs/reports.log
log4j.appender.reportsLog.layout=org.apache.log4j.PatternLayout
log4j.appender.reportsLog.layout.ConversionPattern=%d [%24F:%t:%L] - %m%n
log4j.appender.reportsLog.filter.f1=org.apache.log4j.varia.LevelRangeFilter
log4j.appender.reportsLog.filter.f1.LevelMax=FATAL
log4j.appender.reportsLog.filter.f1.LevelMin=INFO
log4j.category.debugLogger=DEBUG, debugLog
log4j.additivity.debugLogger=false
log4j.category.reportsLogger=INFO, reportsLog
log4j.additivity.reportsLogger=false
Does logging decreases application performance?
and how to restrict display-tags logs to be printed in log files?
eg. my log file has below logs
[2012-06-20 15:52:06,290] org.displaytag.tags.TableTag isFirstIteration 684 - [data] first iteration=true (row number=1)
[2012-06-20 15:52:06,290] org.displaytag.tags.TableTag isFirstIteration 684 - [data] first iteration=true (row number=1)
[2012-06-20 15:52:06,290] org.displaytag.tags.TableTag isFirstIteration 684 - [data] first iteration=true (row number=1)
[2012-06-20 15:52:06,290] org.displaytag.tags.TableTag isFirstIteration 684 - [data] first iteration=true (row number=1)
why the above is in log file?
log.properties file
# Log4j configuration file.
log4j.rootCategory=DEBUG, A1
# Available levels are DEBUG, INFO, WARN, ERROR, FATAL
#
# A1 is a ConsoleAppender
#
log4j.appender.A1 = org.apache.log4j.RollingFileAppender
log4j.appender.A1.File = C:/LogInfo/logfile.log
log4j.appender.A1.MaxFileSize = 100MB
log4j.appender.A1.MaxBackupIndex=50
log4j.appender.A1.layout = org.apache.log4j.PatternLayout
log4j.appender.A1.append = true
log4j.appender.A1.layout.ConversionPattern = [%d] %C %M %L - %m%n
log4j.appender.A1.Threshold = DEBUG
how to stop (org.displaytag.tags.TableTag) these kind of logs to be printed in log files
Does logging decreases application performance?
Yes. How much it does depends on a number of factors; see below.
and how to restrict display-tags logs to be printed in log files?
By changing the ConversionPattern in the logging properties
why the above is in log file?
Because:
somewhere in the code is a call to a Logger method (probably debug(String)) with that message, and
your logging properties set the logging Threshold to DEBUG for the appender.
To improve performance:
change the ConversionPattern to use less expensive date/time formatting, and (more importantly) avoid 'C', 'F', 'L' and 'M' because they are particularly expensive.
change the logging Threshold to INFO or WARNING or ERROR to reduce the amount of logging,
put the Logger.debug(...) call inside an if statement that checks that debug logging is enabled. This saves the cost of assembling the log message in cases where it won't be needed; see In log4j, does checking isDebugEnabled before logging improve performance?.
with log4j version 2 (log4j2), there are overloads that on the logging methods that take a format and parameters. These reduce the overhead when a logging at a level that is disabled.
look also at logback and log4j 2.0.
You can also throttle logging at the Logger level ... as described in the log4j documentation. In fact, the documentation answers most of the questions that you asked, and has a lot of detail on the topics of logging performance and logging configuration.
Short answer: yes, it decreases application performance as it uses some CPU cycles and other resources (memory, etc).
See also this question : log4j performance
Logging can be 30% of you cpu time or more. In terms of jitter, it as large (and more often) than your GC delays.
A simple way to reduce overhead is to use the Pattern to turn off where you are logging each message from. In your case this is %C %M and %L as it has to take a stack trace (of the entier stack) to get this information.
Yes they do. That's why you should only log an error or something that must absolutely be logged. You can also log information helpful for debugging in the debug channel so it won't affect production performance.
how about?
log4j.category.org.displaytag.tags.TableTag=ERROR, A1
You can restrict junk logs like this.
Set the root logger as INFO so that unnecessary debug logs won't come and fill up your log file.
log4j.rootCategory=INFO, A1
If you want specific class or package to give out DEBUG logs you can do it like this.
log4j.logger.org.hibernate.event.def.DefaultLoadEventListener=DEBUG,A1
The above will print DEBUG level logs from the class DefaultLoadEventListener in your log file along with other INFO level logs.
I'm trying to log certain info messages onto a file but as soon as I run the application both warn and info messages are logged. Now, from what I've read from this site, you cannot log one without logging the other. Has anyone tried this before? If so, how did your properties file look like?
My properties file looks like this:
***** Set root logger level to INFO and its two appenders to stdout and R.
log4j.rootLogger=INFO, stdout, R
# ***** stdout is set to be a ConsoleAppender.
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
# ***** stdout uses PatternLayout.
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
# ***** Pattern to output the caller's file name and line number.
log4j.appender.stdout.layout.ConversionPattern=%5p [%M has started] (%F:%L) - %m%n
/
# ***** R is set to be a RollingFileAppender.
log4j.appender.R=org.apache.log4j.DailyRollingFileAppender
log4j.appender.R.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.R.File="folder where log will be saved"
log4j.appender.R.layout.ConversionPattern=%5p [%m has started] %c{2}.[%x] (%F:%L) %d{yyyy-MM-dd HH:mm:ss} - %m%n
# ***** R uses PatternLayout.
log4j.appender.R.layout=org.apache.log4j.PatternLayout
log4j.appender.R.layout.ConversionPattern=%5p [%m has started] %c{2}.[%x] (%F:%L) %d{yyyy-MM-dd HH:mm:ss} - %m%n
AFAIK there's no standard way to suppress higher log levels than those you are interested in.
However, you might be able to use a custom appender to do that.
It might look similar to this:
public class MyAppender extends AppenderSkeleton {
protected void append(LoggingEvent event) {
if( event.getLevel() == Level.INFO ) {
//append here, maybe call a nested appender
}
}
}
The log level WARN is higher than INFO, and the logging configuration defines the minimum threshold level to be logged by the appender. So, all messages higher than that level will also be logged.
Hence, the WARN messages are expected. And I don't think you can configure it to the way you want.
If the WARN messages that should not be printed come from a different package than the INFO messages, then you can define different log levels for these packages. The first can specify level ERROR and the second INFO
it should look something like this:
log4j.logger.com.test.something=ERROR
log4j.logger.com.other.package=INFO
cheers
Why do you want to filter the WARN level? As peshkira said, you could use two different loggers for splitting/filtering your log output, or you could use tools like grep for filtering (offline) or you could simply remove the WARN logs from your code if your don't need them anyway.
As far as I understand, advanced filters like LevelMatchFilter and LevelRangeFilter can do the trick for you.
Thing worth keeping in mind though is that using these may require xml config instead of properties: Can't set LevelRangeFilter for log4j