gerbenasd opened a new issue, #2741:
URL: https://github.com/apache/karaf/issues/2741
(a minor upgrade did not show this problem to me, bu might also be
problematic)
Simplest example: changes to file org.ops4j.pax.logging.cfg
This is also seen with changes to files in the deploy directory (using
camel-blueprint).
This might be problematic in other situations as well.
Way to resovle problem is to
- stop karaf
- remove data directory
- start karaf (changes to org.ops4j.pax.logging.cfg are reflected
correctly)
(this requires rebuilding the karaf instance to you needs)
### EXAMPLE
Unpack a fresh download (apache-karaf-4.4.11.zip)
Start karaf.bat using JAVA_HOME=C:\opt\Java\jdk-11.0.27+6
Changes to org.ops4j.pax.logging.cfg are tracked, e.g. changing filename
repeatedly:
log4j2.appender.rolling.fileName = ${karaf.log}/karaf.log
log4j2.appender.rolling.fileName = ${karaf.log}/karaf1.log
log4j2.appender.rolling.fileName = ${karaf.log}/karaf2.log
Stop and start using JAVA_HOME=C:\opt\Java\jdk-17.0.14+7
This already creates unresponsiveness. Even reverting back to previous jdk
will not help anymore.
changing filename is not detected anymore (log:tail will show nothing about
that change)
log4j2.appender.rolling.fileName = ${karaf.log}/karaf3.log
the logfile will remain karaf2.log
### EXAMPLE LOG
### UNDER JDK 11
C:\opt\apache-karaf-4.4.11\bin>set JAVA
JAVA_HOME=C:\opt\Java\jdk-11.0.27+6
C:\opt\apache-karaf-4.4.11\bin>time
The current time is: 13:48:27,43
Enter the new time:
C:\opt\apache-karaf-4.4.11\bin>karaf.bat
karaf.bat: KARAF_LOG doesn't exist:
"C:\opt\apache-karaf-4.4.11\bin\..\data\log"
karaf.bat: Creating "C:\opt\apache-karaf-4.4.11\bin\..\data\log"
__ __ ____
/ //_/____ __________ _/ __/
/ ,< / __ `/ ___/ __ `/ /_
/ /| |/ /_/ / / / /_/ / __/
/_/ |_|\__,_/_/ \__,_/_/
Apache Karaf (4.4.11)
Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown Karaf.
karaf@root()>
C:\opt\apache-karaf-4.4.11\bin>time
The current time is: 13:49:28,71
Enter the new time:
### UNDER JDK 17
C:\opt\apache-karaf-4.4.11\bin>set JAVA
JAVA_HOME=C:\opt\Java\jdk-17.0.14+7
C:\opt\apache-karaf-4.4.11\bin>time
The current time is: 13:50:05,24
Enter the new time:
C:\opt\apache-karaf-4.4.11\bin>karaf.bat
__ __ ____
/ //_/____ __________ _/ __/
/ ,< / __ `/ ___/ __ `/ /_
/ /| |/ /_/ / / / /_/ / __/
/_/ |_|\__,_/_/ \__,_/_/
Apache Karaf (4.4.11)
Hit '<tab>' for a list of available commands
and '[cmd] --help' for help on a specific command.
Hit '<ctrl-d>' or type 'system:shutdown' or 'logout' to shutdown Karaf.
karaf@root()>
C:\opt\apache-karaf-4.4.11\bin>time
The current time is: 13:50:41,53
Enter the new time:
### THE LOGFILES PRODUCED
- setting filename to karaf3.log is not reflected. karaf2.log remains active
- (file karaf.log is touched somewhere when starting karaf)
C:\opt\apache-karaf-4.4.11\data\log>dir
Volume in drive C has no label.
Volume Serial Number is 3E0A-A99D
Directory of C:\opt\apache-karaf-4.4.11\data\log
23/06/2026 13:49 <DIR> .
23/06/2026 13:48 <DIR> ..
23/06/2026 13:50 29.919 karaf.log
23/06/2026 13:49 551 karaf1.log
23/06/2026 13:50 29.085 karaf2.log
23/06/2026 13:48 0 security.log
4 File(s) 59.555 bytes
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