Thanks Achim for replying.
I tried to have a fragment bundle of JSONEvenLayout
<https://github.com/logstash/log4j-jsonevent-layout> . But whenever I am
trying to start Karaf I am getting the below exception. I have listed down
all the steps that I have been doing. Can you let me know what I am doing
wrong?
]log4j:ERROR Could not instantiate class [net.logstash.log4j.
JSONEventLayoutV1].
java.lang.ClassNotFoundException: net.logstash.log4j.JSONEventLayoutV1 not
found by org.ops4j.pax.logging.pax-logging-service [5]
at
org.apache.felix.framework.BundleWiringImpl.findClassOrResourceByDelegation(BundleWiringImpl.java:1532)
at
org.apache.felix.framework.BundleWiringImpl.access$400(BundleWiringImpl.java:75)
at
org.apache.felix.framework.BundleWiringImpl$BundleClassLoader.loadClass(BundleWiringImpl.java:1955)
at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:264)
at org.apache.log4j.helpers.Loader.loadClass(Loader.java:198)
at
org.apache.log4j.helpers.OptionConverter.instantiateByClassName(OptionConverter.java:326)
at
org.apache.log4j.helpers.OptionConverter.instantiateByKey(OptionConverter.java:123)
at
org.apache.log4j.PaxLoggingConfigurator.parseAppender(PaxLoggingConfigurator.java:129)
at
org.apache.log4j.PropertyConfigurator.parseCategory(PropertyConfigurator.java:735)
at
org.apache.log4j.PropertyConfigurator.configureRootCategory(PropertyConfigurator.java:615)
at
org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:502)
at
org.apache.log4j.PaxLoggingConfigurator.doConfigure(PaxLoggingConfigurator.java:72)
at
org.ops4j.pax.logging.service.internal.PaxLoggingServiceImpl.updated(PaxLoggingServiceImpl.java:214)
at
org.ops4j.pax.logging.service.internal.PaxLoggingServiceImpl$1ManagedPaxLoggingService.updated(PaxLoggingServiceImpl.java:362)
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.updated(ManagedServiceTracker.java:189)
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.updateService(ManagedServiceTracker.java:152)
at
org.apache.felix.cm.impl.helper.ManagedServiceTracker.provideConfiguration(ManagedServiceTracker.java:85)
at
org.apache.felix.cm.impl.ConfigurationManager$UpdateConfiguration.run(ConfigurationManager.java:1747)
at org.apache.felix.cm.impl.UpdateThread.run(UpdateThread.java:103)
at java.lang.Thread.run(Thread.java:745)
log4j:ERROR No layout set for the appender named [out].
The steps that I have followed.
1. Modified the pom.xml file of jsonevent-layout as shown below:-
<plugin>
<groupId>org.apache.felix</groupId>
<artifactId>maven-bundle-plugin</artifactId>
<version>2.3.7</version>
<extensions>true</extensions>
<configuration>
<instructions>
<Bundle-Name>${project.groupId}.${project.artifactId}</Bundle-Name>
<Bundle-SymbolicName>${project.groupId}.${project.artifactId}</Bundle-SymbolicName>
<Import-Package>!*</Import-Package>
<Fragment-Host>org.ops4j.pax.logging.pax-logging-service;bundle-version="[1.6,1.7)"</Fragment-Host>
<Embed-Dependency>*;scope=compile|runtime;inline=true</Embed-Dependency>
<Implementation-Version>${project.version}</Implementation-Version>
</instructions>
</configuration>
</plugin>
2. Build json format using mvn clean install -Pbundle
3. Copy bundle created to system directory
mkdir -p
${karaf.home}/system/net/logstash/log4j/jsonevent-layout/1.8-SNAPSHOT/
cp target/jsonevent-layout-1.8-SNAPSHOT.jar
${karaf.home}/system/net/logstash/log4j/jsonevent-layout/1.8-SNAPSHOT/
4. Add this line to etc/startup.properties before Pax Logging
net/logstash/log4j/jsonevent-layout/1.8-SNAPSHOT/jsonevent-layout-1.8-SNAPSHOT.jar=3
mvn\:org.ops4j.pax.url/pax-url-aether/2.4.1 = 5
mvn\:org.ops4j.pax.url/pax-url-wrap/2.4.1/jar/uber = 5
mvn\:org.ops4j.pax.logging/pax-logging-api/1.8.4 = 8
mvn\:org.ops4j.pax.logging/pax-logging-service/1.8.4 = 8
Updated org.ops4j.pax.logging.cfg as follows:-
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=net.logstash.log4j.JSONEventLayoutV1
log4j.appender.stdout.layout.ConversionPattern=%d{ISO8601} | %-5.5p |
%-16.16t | %-32.32c{1} | %X{bundle.id} - %X{bundle.name} -
%X{bundle.version} | %m%n
Thanks,
Debraj
On Mon, Feb 29, 2016 at 1:17 PM, Achim Nierbeck <[email protected]>
wrote:
> Depends on if you have an appender that can do so.
> If you have such an appender, make sure to attach it to pax-logging.
> One known to work solution is to have a fragment bundle which attaches to
> the pax-logging service bundle (if it's a log4j 1.x bundle)
>
> regards, Achim
>
>
> 2016-02-29 6:46 GMT+01:00 D <[email protected]>:
>
>> Is there a way we can make karaf log in JSON format?
>>
>>
>>
>> --
>> View this message in context:
>> http://karaf.922171.n3.nabble.com/Karaf-logging-in-JSON-format-tp4045607.html
>> Sent from the Karaf - User mailing list archive at Nabble.com.
>>
>
>
>
> --
>
> Apache Member
> Apache Karaf <http://karaf.apache.org/> Committer & PMC
> OPS4J Pax Web <http://wiki.ops4j.org/display/paxweb/Pax+Web/> Committer &
> Project Lead
> blog <http://notizblog.nierbeck.de/>
> Co-Author of Apache Karaf Cookbook <http://bit.ly/1ps9rkS>
>
> Software Architect / Project Manager / Scrum Master
>
>
