[KARAF-5444] Unable to use Log4j2 ContextMapLookup with pax-logging

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 4.1.2
• Component/s: karaf

Environment

JVM:

java version "1.8.0_144"
Java(TM) SE Runtime Environment (build 1.8.0_144-b01)
Java HotSpot(TM) 64-Bit Server VM (build 25.144-b01, mixed mode)

OS:

os.arch=amd64
os.name=Linux
os.version=4.10.3-041003-generic

• Flags: Important
• Assignee: Guillaume Nodet
• Reporter: Rocco Lagrotteria
• Created: 26/Oct/17 09:29
• Updated: 15/Sep/18 05:16
• Resolved: 26/Oct/17 16:35

Description

ContextMapLookup has been worked fine using escaped

${ctx:xxx}

placeholder in log4j config, but in karaf 4.1.2 it doesn't work anymore.

To replicate the issue, add this properties in etc/org.ops4j.pax.logging.cfg trying to setup a single log file per bundle:

log4j2.appender.bundle.type = Routing
log4j2.appender.bundle.name = RoutingByBundle
log4j2.appender.bundle.routes.type = Routes
log4j2.appender.bundle.routes.pattern = \$\$\\\{ctx:bundle.name\}
log4j2.appender.bundle.routes.bundlename.type = Route
log4j2.appender.bundle.routes.bundlename.appender.type = RandomAccessFile
log4j2.appender.bundle.routes.bundlename.appender.name = RandomAccessFile-\$\\\{ctx:bundle.name\}
log4j2.appender.bundle.routes.bundlename.appender.fileName = ${karaf.data}/log/karaf.\$\\\{ctx:bundle.name\}-\$\\\{ctx:bundle.id\}.log
log4j2.appender.bundle.routes.bundlename.appender.append = true
log4j2.appender.bundle.routes.bundlename.appender.layout.type = PatternLayout
log4j2.appender.bundle.routes.bundlename.appender.layout.pattern = [%d{ISO8601}][%-5.5p][%t] - %m%n

log4j2.rootLogger.appenderRef.RoutingByBundle.ref = RoutingByBundle

Configuration works, but restarting karaf empty values replace placeholders in config settings, breaking configuration:

log4j2.appender.bundle.type = Routing
log4j2.appender.bundle.name = RoutingByBundle
log4j2.appender.bundle.routes.type = Routes
log4j2.appender.bundle.routes.pattern = $
log4j2.appender.bundle.routes.bundlename.type = Route
log4j2.appender.bundle.routes.bundlename.appender.type = RandomAccessFile
log4j2.appender.bundle.routes.bundlename.appender.name = RandomAccessFile-
log4j2.appender.bundle.routes.bundlename.appender.fileName = /home/rolag/Desktop/apache-karaf-4.1.2/data/log/karaf.-.log
log4j2.appender.bundle.routes.bundlename.appender.append = true
log4j2.appender.bundle.routes.bundlename.appender.layout.type = PatternLayout
log4j2.appender.bundle.routes.bundlename.appender.layout.pattern = [%d{ISO8601}][%-5.5p][%t] - %m%n

log4j2.rootLogger.appenderRef.RoutingByBundle.ref = RoutingByBundle

Issue Links

• duplicates: KARAF-5326 variables in cfg files are expanded