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06-20-2008, 11:14 AM
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log4j log files are not getting rolled over
I am using log4j in my project the log files are not getting over after the stipulated size of the log file is reached.
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06-20-2008, 12:31 PM
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Location: Colombo, Sri Lanka
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Any exceptions you get? Or is it override after reach the specified file size?
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06-20-2008, 02:33 PM
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log4j logfiles are not getting rolled over
We have an application which uses log4j to log its log messages, we are using rolling file appender and the roll over size is 5MB.
Every thing runs fine when we have only one instance of this application running. The file gets rolled over after crossing 5MB.
We are facing a problem only when we start the same application two times (in two different JVMS). The log file does not get roll over even after crossing 5MB.
We have this problem as two log 4j instances ( running in different JVMS) are accessing the same file in parallel. The case might be that log 4j has a file pointer which is not refreshed when another instance of log 4j (running in different JVM) updates the same file.
Is there any way to refresh the PropertyConfigurator setting.
Last edited by ajaykumar_mohini : 06-21-2008 at 04:31 PM.
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06-23-2008, 05:45 AM
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The reason here is that same log files are directed on different instance of your application. Try to make new log file structure for each instance.
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06-24-2008, 08:59 AM
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log4j logfiles are not getting rolled over
Hi Eranga can u please explain a bit more on this i couldn't get it.
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06-24-2008, 09:41 AM
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Say you run the application. Logs start to writes on. Then you start the same application again, but it use the same log files too. What I try to say is, use different files for this.
In such cases what I have done is change the file name with application start time or such similar detail which is specific to that time only.
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06-24-2008, 09:54 AM
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Ajay, have you used appenders correctly?
please post your log4j.properties !!
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06-24-2008, 03:03 PM
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log4j logfiles are not getting rolled over
These are my log4j properties
log4j.appender.RF.MaxBackupIndex=5
log4j.appender.RF.layout.ConversionPattern=%p %c %d{dd-MMM-yyyy HH\:mm\:ss}- %m%n
log4j.appender.RF.layout=org.apache.log4j.PatternL ayout
log4j.appender.RF.MaxFileSize=1MB
log4j.appender.RF=org.apache.log4j.RollingFileAppe nder
log4j.appender.RF.File=logs/mqadapter.log
log4j.logger.com.boeing.dd2cai.common=INFO, RF
log4j.additivity.com.boeing.dd2cai.common=false
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06-26-2008, 11:50 AM
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log4j logfiles are not getting rolled over
Hi Eranga,
Thanks for the suggestion i am now creating different log files for different instances(there would be only one instance per jvm as it the class is singleton) and its rolling over fine.But the catch here is that every time i stop my jvm and start again then a new set of log files are created thiss may turnaround to be nightmare in the long run can u please suggest a workaround for this.
With Kind Regards
Ajay
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06-26-2008, 12:18 PM
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In that way you have it. Is it really trouble for you? Actually all depends on your implementation. Say the log file size you defined 10MB, depends on the time take to reach that level you have a mess. That mean you have to formated your log records in shorter with most important data.
Even for separate instance try to use the same log file for a day. For a day you can handle the file size. If the file size is exceeded make the second file of the first.
I hope it's clear to you.
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