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https://issues.apache.org/jira/browse/LOG4J2-1231?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15073933#comment-15073933
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Ralph Goers commented on LOG4J2-1231:
-------------------------------------
I ran your test application in my Windows 7 VM and had no problem viewing the
log files with notepad while the application is still running. I did have to
modify the source to use C: instead of D: as I don't have a second drive.
> Log files are under lock, not able to view them until JVM stop.
> ---------------------------------------------------------------
>
> Key: LOG4J2-1231
> URL: https://issues.apache.org/jira/browse/LOG4J2-1231
> Project: Log4j 2
> Issue Type: Question
> Components: Appenders
> Affects Versions: 2.5
> Environment: window, jre 1.7, IBM Integration Bus
> Reporter: Yogesh Bhardwaj
> Priority: Blocker
> Labels: newbie
> Fix For: 2.5.1
>
> Attachments: log4j.zip
>
> Original Estimate: 504h
> Remaining Estimate: 504h
>
> Hi Team,
> The problem is when I use file appender with below configuration.
> In each application thread I am calling "initLog4j" followed by other
> function mentioned in below class, JVM at server level not application level
> which is configured to load log4j specific jar files. The log files are
> getting created as per my configuration but being a Admin when I try to open
> them I am getting messages " document "..........." is under use by some
> other application and can't be accessed." I can see one thread is still
> running although my application thread is ended.
> As per my understanding if admin can't see the logs even when application is
> running, no use of such logging , Could you please confirm is this expected
> behavior, is their any alternative for this.....?
> Daemon Thread :
> Daemon Thread [MemoryPoolMXBean notification dispatcher] (Running)
> My class
> {code}
> import org.apache.logging.log4j.LogManager;
> import org.apache.logging.log4j.Logger;
> public class log4j {
> public log4j() {
> }
> public static void initLog4j(String logPath1, String filename1) {
> String env = System.getenv("MQSI_WORKPATH");
> String fs = System.getProperty("file.separator");
> String filePath = logPath1;
> System.setProperty("logPath", filePath);
> System.setProperty("fileName", filename1);
> String configFilePath = (new StringBuilder(String.valueOf(env)))
> .append(fs).append("shared-classes").append(fs)
> .append("log4j2.xml").toString();
> System.setProperty("log4j.configurationFile", configFilePath);
> }
> public static void logDebug(String logText) {
> String loggerName = logText.substring(logText.indexOf('[') + 1,
> logText.indexOf(']'));
> Logger logger = LogManager.getLogger(loggerName);
> logger.debug(logText);
> }
> public static void logInfo(String logText) {
> String loggerName = logText.substring(logText.indexOf('[') + 1,
> logText.indexOf(']'));
> Logger logger = LogManager.getLogger(loggerName);
> logger.info(logText);
> }
> public static void logWarn(String logText) {
> String loggerName = logText.substring(logText.indexOf('[') + 1,
> logText.indexOf(']'));
> Logger logger = LogManager.getLogger(loggerName);
> logger.warn(logText);
> }
>
> public static void logTrace(String logText) {
> String loggerName = logText.substring(logText.indexOf('[') + 1,
> logText.indexOf(']'));
> Logger logger = LogManager.getLogger(loggerName);
> logger.trace(logText);
> }
> public static void logError(String logText) {
> String loggerName = logText.substring(logText.indexOf('[') + 1,
> logText.indexOf(']'));
> Logger logger = LogManager.getLogger(loggerName);
> logger.error(logText);
> }
> }
> {code}
> log4j.xml
> {code}
> <?xml version="1.0" encoding="UTF-8"?>
> <Configuration>
> <Appenders>
> <File name="info-log"
> fileName="${sys:logPath}/${sys:fileName}_info.log" immediateFlush="true">
> <PatternLayout
> pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS}
> [%t] %c{1} - %msg%n" />
> </File>
> <File name="trace-log"
> fileName="${sys:logPath}/${sys:fileName}_trace.log" immediateFlush="true">
> <PatternLayout
> pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS}
> [%t] %c{1} - %msg%n" />
> </File>
> <File name="error-log"
> fileName="${sys:logPath}/${sys:fileName}_error.log" immediateFlush="true">
> <PatternLayout
> pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS}
> [%t] %c{1} - %msg%n" />
> </File>
> <File name="debug-log"
> fileName="${sys:logPath}/${sys:fileName}_debug.log" immediateFlush="true">
> <PatternLayout
> pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS}
> [%t] %c{1} - %msg%n" />
> </File>
> <File name="warn-log"
> fileName="${sys:logPath}/${sys:fileName}_warn.log" immediateFlush="true">
> <PatternLayout
> pattern="[%-5level] %d{yyyy-MM-dd HH:mm:ss.SSS}
> [%t] %c{1} - %msg%n" />
> </File>
> </Appenders>
> <Loggers>
> <Root level="trace">
> <AppenderRef ref="trace-log" level="TRACE" />
> <AppenderRef ref="info-log" level="INFO" />
> <AppenderRef ref="warn-log" level="WARN" />
> <AppenderRef ref="debug-log" level="DEBUG" />
> <AppenderRef ref="error-log" level="ERROR" />
> </Root>
> </Loggers>
> </Configuration>
> {code}
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