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https://issues.apache.org/jira/browse/LOG4J2-3563?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17572264#comment-17572264
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Sergey Kadaner commented on LOG4J2-3563:
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[~rgoers] I have the {_}log4j2.Script.enabes{_}{_}leLanguag{_}{_}=Groovy{_} in
my _log4j2.component.properties_ file and I also tried adding it as a JVM
parameter via -D{_}log4j2.Script.enableLanguages=Groovy{_}
Is not it the correct configuration?
> Logging to Kafka is broken
> ---------------------------
>
> Key: LOG4J2-3563
> URL: https://issues.apache.org/jira/browse/LOG4J2-3563
> Project: Log4j 2
> Issue Type: Bug
> Affects Versions: 2.18.0, 2.17.2, 2.17.3
> Reporter: Sergey Kadaner
> Priority: Blocker
>
> Upgrading from Log4J2 2.17.1 to 2.17.2 broke our logging to Kafka.
> We have the following configuration:
> {code:yaml}
> AppenderSet:
> kafka:
> name: kafka
> topic: logs
> syncsend: false
> ignoreExceptions: true
> PatternLayout:
> Pattern: "{\"service_name\":\"${env:SERVICE_NAME}..."
> Property:
> - name: bootstrap.servers
> value: ${env:KAFKA_BOOTSTRAP_SERVERS} {code}
> After upgrading to 2.17.2 we are getting the following error on startup:
> {noformat}
> 2022-07-26 19:12:42,674 main ERROR Could not create plugin of type class
> org.apache.logging.log4j.core.appender.ScriptAppenderSelector for element
> ScriptAppenderSelector: org.apache.kafka.common.KafkaException: Failed to
> construct kafka producer org.apache.kafka.common.KafkaException: Failed to
> construct kafka producer
> at
> org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:442)
> at
> org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:292)
> at
> org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:319)
> at
> org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:304)
> at
> org.apache.logging.log4j.core.appender.mom.kafka.DefaultKafkaProducerFactory.newKafkaProducer(DefaultKafkaProducerFactory.java:40)
> at
> org.apache.logging.log4j.core.appender.mom.kafka.KafkaManager.startup(KafkaManager.java:136)
> at
> org.apache.logging.log4j.core.appender.mom.kafka.KafkaAppender.start(KafkaAppender.java:195)
> at
> org.apache.logging.log4j.core.appender.AppenderSet.createAppender(AppenderSet.java:129)
> at
> org.apache.logging.log4j.core.appender.ScriptAppenderSelector$Builder.build(ScriptAppenderSelector.java:96)
> at
> org.apache.logging.log4j.core.appender.ScriptAppenderSelector$Builder.build(ScriptAppenderSelector.java:46)
> at
> org.apache.logging.log4j.core.config.plugins.util.PluginBuilder.build(PluginBuilder.java:124)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createPluginObject(AbstractConfiguration.java:1122)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1047)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.createConfiguration(AbstractConfiguration.java:1039)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.doConfigure(AbstractConfiguration.java:651)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.initialize(AbstractConfiguration.java:249)
> at
> org.apache.logging.log4j.core.config.AbstractConfiguration.start(AbstractConfiguration.java:295)
> at
> org.apache.logging.log4j.core.LoggerContext.setConfiguration(LoggerContext.java:621)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:694)
> at
> org.apache.logging.log4j.core.LoggerContext.reconfigure(LoggerContext.java:711)
> at
> org.apache.logging.log4j.core.LoggerContext.start(LoggerContext.java:253)
> at
> org.apache.logging.log4j.core.async.AsyncLoggerContext.start(AsyncLoggerContext.java:76)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:155)
> at
> org.apache.logging.log4j.core.impl.Log4jContextFactory.getContext(Log4jContextFactory.java:47)
> at org.apache.logging.log4j.LogManager.getContext(LogManager.java:196)
> at
> org.apache.logging.log4j.spi.AbstractLoggerAdapter.getContext(AbstractLoggerAdapter.java:137)
> at
> org.apache.logging.slf4j.Log4jLoggerFactory.getContext(Log4jLoggerFactory.java:55)
> at
> org.apache.logging.log4j.spi.AbstractLoggerAdapter.getLogger(AbstractLoggerAdapter.java:47)
> at
> org.apache.logging.slf4j.Log4jLoggerFactory.getLogger(Log4jLoggerFactory.java:33)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:363)
> at org.slf4j.LoggerFactory.getLogger(LoggerFactory.java:388)
> at com.mycompany.MyApplication.<clinit>(MyApplication.java:8)
> Caused by: org.apache.kafka.common.config.ConfigException: No resolvable
> bootstrap urls given in bootstrap.servers
> at
> org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:89)
> at
> org.apache.kafka.clients.ClientUtils.parseAndValidateAddresses(ClientUtils.java:48)
> at
> org.apache.kafka.clients.producer.KafkaProducer.<init>(KafkaProducer.java:416)
> ... 31 more
> {noformat}
> Replacing the environment variable with a hardcoded "bootstrap.servers" value
> changes nothing.
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