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) > > [?:?] > -- -- ------------------ OPS4J - http://www.ops4j.org - ops4j@googlegroups.com --- You received this message because you are subscribed to the Google Groups "OPS4J" group. 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