The way I have configured Log4j2 is through the following entry in
pax-logging.properties.
org.ops4j.pax.logging.log4j2.config.file=path/to/log4j2.properties
So when I try:
Hashtable<String, Object> log4jProps = new Hashtable<String, Object>();
log4jProps.put( "appender.CONSOLE.layout.pattern", "[%d] %5p {%c} -
%m%ex%n" );
configuration.update(log4jProps);
This will add another entry into pax-logging.properties as
appender.CONSOLE.layout.pattern
= [%d] %5p {%c} - %m%ex%n which makes all the entries in
pax-logging.properties invalid.
To make my requirement clear, I have two things to do.
1. I have a Log4J2 custom memory appender in which writes log events to a
circular buffer. During the runtime, I need to display these logs in the
UI. For this, I should be able to get the memory appender form the log4j2
context.
2. I need to give an option to the user to reconfigure all the appenders
during runtime throught the UI. For this, I should be able to reconfigure
the specified properties of appenders programatically.
On Wednesday, August 9, 2017 at 9:00:12 PM UTC+5:30, Jérémie Brébec wrote:
>
> Hello,
>
> I am using pax-logging 1.10.1 through Karaf 4.1.2 ;
>
> I am trying to integrate the log generated by my ElasticSearch bundle to
> the pax-logging implementation. However, this didn't work because a
> ClassCastException. I haven't see any "duplicate classloader issues", and
> when I check the code, the ClassCastException doesn't feel to be
> osgi-related. Is it a known issue or I am missing something ?
>
> Regards,
> Jérémie
>
> java.lang.ClassCastException:
> org.ops4j.pax.logging.log4jv2.Log4jv2LoggerContext cannot be cast to
> org.apache.logging.log4j.core.LoggerContext
> at
> org.apache.logging.log4j.core.LoggerContext.getContext(LoggerContext.java:190)
>
> [6:org.ops4j.pax.logging.pax-logging-log4j2:1.10.1]
> at
> org.apache.logging.log4j.core.config.Configurator.setLevel(Configurator.java:291)
>
> [6:org.ops4j.pax.logging.pax-logging-log4j2:1.10.1]
> at
> org.elasticsearch.common.logging.Loggers.setLevel(Loggers.java:149)
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.common.logging.Loggers.setLevel(Loggers.java:144)
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.index.SearchSlowLog.setLevel(SearchSlowLog.java:111)
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.index.SearchSlowLog.<init>(SearchSlowLog.java:106)
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.index.IndexModule.<init>(IndexModule.java:127)
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.indices.IndicesService.createIndexService(IndicesService.java:441)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.indices.IndicesService.createIndex(IndicesService.java:414)
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.metadata.MetaDataIndexTemplateService.validateAndAddTemplate(MetaDataIndexTemplateService.java:216)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.metadata.MetaDataIndexTemplateService.access$200(MetaDataIndexTemplateService.java:63)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.metadata.MetaDataIndexTemplateService$2.execute(MetaDataIndexTemplateService.java:172)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.ClusterStateUpdateTask.execute(ClusterStateUpdateTask.java:45)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.service.ClusterService.executeTasks(ClusterService.java:634)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.service.ClusterService.calculateTaskOutputs(ClusterService.java:612)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.service.ClusterService.runTasks(ClusterService.java:571)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.service.ClusterService$ClusterServiceTaskBatcher.run(ClusterService.java:263)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.service.TaskBatcher.runIfNotProcessed(TaskBatcher.java:150)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.cluster.service.TaskBatcher$BatchedTask.run(TaskBatcher.java:188)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.common.util.concurrent.ThreadContext$ContextPreservingRunnable.run(ThreadContext.java:569)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.runAndClean(PrioritizedEsThreadPoolExecutor.java:247)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> org.elasticsearch.common.util.concurrent.PrioritizedEsThreadPoolExecutor$TieBreakingPrioritizedRunnable.run(PrioritizedEsThreadPoolExecutor.java:210)
>
> [88:features.boss.elasticsearch.bundle:5.5.0]
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
>
> [?:?]
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
>
> [?:?]
>
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