java.util.logging


Java Util Logger Write Synchronization

醉酒当歌 提交于 2020-01-23 13:03:14
问题 Normally in applications (Take web application for example) we have a single instance of the logger created during the startup. It can even be a singleton and it doesn't matter. The important thing is there is 1 instance for the whole application. We use java.util.logger Now image you have two requests from two different users which throw an exception and we are logging those which get written to the log file. Is the write in these two different requests to the log file synchronized in

Missing slash on Java 9’s LogManager.getLogger() / Logger.getHandlers() seems to cause an exception

放肆的年华 提交于 2020-01-23 03:20:08
问题 I am seeing a problem with an Applet on Windows, running Java 9, when I am trying to create a log file C:\Users\cardal\ApplicationLog.html. The code works fine on Java 8. The code does LogManager.readConfiguration () and LogManager.getLogger(). Then Logger.getHandlers() hits an exception. It looks like the first slash is getting removed by mistake: Can't load log handler "java.util.logging.FileHandler" java.nio.file.NoSuchFileException: C:Users\cardal\ApplicationLog.html.lck java.nio.file

Missing slash on Java 9’s LogManager.getLogger() / Logger.getHandlers() seems to cause an exception

纵然是瞬间 提交于 2020-01-23 03:20:07
问题 I am seeing a problem with an Applet on Windows, running Java 9, when I am trying to create a log file C:\Users\cardal\ApplicationLog.html. The code works fine on Java 8. The code does LogManager.readConfiguration () and LogManager.getLogger(). Then Logger.getHandlers() hits an exception. It looks like the first slash is getting removed by mistake: Can't load log handler "java.util.logging.FileHandler" java.nio.file.NoSuchFileException: C:Users\cardal\ApplicationLog.html.lck java.nio.file

Managing a Large Number of Log Files Distributed Over Many Machines

前提是你 提交于 2020-01-22 20:51:50
问题 We have started using a third party platform (GigaSpaces) that helps us with distributed computing. One of the major problems we are trying to solve now is how to manage our log files in this distributed environment. We have the following setup currently. Our platform is distributed over 8 machines. On each machine we have 12-15 processes that log to separate log files using java.util.logging. On top of this platform we have our own applications that use log4j and log to separate files. We

Managing a Large Number of Log Files Distributed Over Many Machines

a 夏天 提交于 2020-01-22 20:51:05
问题 We have started using a third party platform (GigaSpaces) that helps us with distributed computing. One of the major problems we are trying to solve now is how to manage our log files in this distributed environment. We have the following setup currently. Our platform is distributed over 8 machines. On each machine we have 12-15 processes that log to separate log files using java.util.logging. On top of this platform we have our own applications that use log4j and log to separate files. We

Java: How to change the language of java.util.logging to English?

[亡魂溺海] 提交于 2020-01-21 09:09:45
问题 I have java.util.logging to print output to a file. It works fine. However, the messages contain chinese characters which correspond to the log level and the time the messages are logged. How can I make it print english instead of chinese characters ? This is what the current messages look like 11月 08, 2016 8:28:03 下午 mySamples.testing.TestingFile errorFunction 資訊: Exception: 123 回答1: Start your application by passing the language on the command-line to override the current default language

Java: How to change the language of java.util.logging to English?

为君一笑 提交于 2020-01-21 09:09:00
问题 I have java.util.logging to print output to a file. It works fine. However, the messages contain chinese characters which correspond to the log level and the time the messages are logged. How can I make it print english instead of chinese characters ? This is what the current messages look like 11月 08, 2016 8:28:03 下午 mySamples.testing.TestingFile errorFunction 資訊: Exception: 123 回答1: Start your application by passing the language on the command-line to override the current default language

Find actual opened logfile with JDK Logging

女生的网名这么多〃 提交于 2020-01-17 08:31:26
问题 I saw Java Logging - where is my log file?, but in my case I would like to find out in my Java application which logfile the FileHandler actually opened, i.e. if I start multiple processes and have a pattern set as java.util.logging.FileHandler.pattern=MyApp.%g.%u.log Then the %g and %u will be replaced with numbers depending on how many processes are running. I can iterate over all logging Handlers and find the File-based one. But as far as I see there is no method in FileHandler to get the

How to set loglevel of the Appengine DataStore in Java

ε祈祈猫儿з 提交于 2020-01-14 13:37:28
问题 I have a logging.properties file in my Java AppEngine project (using java.util.logging ) that looks like this: # Set the default logging level for all loggers to WARNING .level = INFO # tighten logging on the DataNucleus Categories DataNucleus.JDO.level=WARN # - All messages general to JDO DataNucleus.JPA.level=WARN # - All messages general to JPA DataNucleus.Persistence.level=WARN # - All messages relating to the persistence process DataNucleus.Query.level=WARN # - All messages relating to

I want to create Handler that will be catch all Logs of web aplications on Tomcat, and

对着背影说爱祢 提交于 2020-01-04 06:53:45
问题 I want to create Handler that will be catch all Logs of web aplications on Tomcat, I Created my Handler class, compiled it and put on $CATALINA_HOME/lib , and common.loader has this directory. After this I modified the logging.properties file and added the handler: handlers = 1catalina.org.apache.juli.FileHandler, 2localhost.org.apache.juli.FileHandler, 3manager.org.apache.juli.FileHandler, 4host-manager.org.apache.juli.FileHandler, java.util.logging.ConsoleHandler, logshowaplication

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