Configure log4j.properties for Kafka appender, error when parsing property bootstrap.servers - scala

Question

I want to add a Kafka appender to the audit-hdfs log in a Cloudera cluster.
I have successfully configured a log4j2.xml file with a Kafka appender, I need to convert this log4j2.xml into a log4j2.properties file in order to be able to merge it with the HDFS log log4j2.properties file. I am unable to do this because when I launch my dummy process with log4j2.properties instead of XML, I get an error.
I have tried writing the properties file in several different ways, always resulting in problems with the bootstrap.servers property
This is my properties file
filters = threshold
filter.threshold.type = ThresholdFilter
filter.threshold.level = ALL
appenders = console,kafka
appender.console.type = Console
appender.console.name = console
appender.console.layout.type = PatternLayout
appender.console.layout.pattern = %m%n
appender.kafka.type = Kafka
appender.kafka.name = kafka
appender.kafka.layout.type = PatternLayout
appender.kafka.layout.pattern =%m%n
appender.kafka.property.type = Property
appender.kafka.property.bootstrap.servers = ip:port
appender.kafka.topic = cdh-audit-hdfs
Here the problem is in this line:
appender.kafka.property.bootstrap.servers = ip:port
I have tried the following, to no avail:
appender.kafka.property.bootstrap.servers = ip:port
appender.kafka.property.bootstrap\.servers = ip:port
appender.kafka.property.name = "bootstrap.servers"
appender.kafka.property.bootstrap.servers = ip:port
appender.kafka.property.key = "bootstrap.servers"
appender.kafka.property.value = ip:port
etc...
This is my dummy process:
package blabla
import org.apache.logging.log4j.LogManager
object dummy extends App{
val logger = LogManager.getLogger
val record = "...c"
while(true){
logger.info(record)
Thread.sleep(5000)
}
}
How do I need to configure my log4j2.properties in order to be able to define this property?
Im expecting this process to write the record in my Kafka topic but instead I get errors like this:
Exception in thread "main" org.apache.logging.log4j.core.config.ConfigurationException: No type attribute provided for component bootstrap
Exception in thread "main" org.apache.kafka.common.config.ConfigException: Missing required configuration "bootstrap.servers" which has no default value.

Answer 1

try this solution, it works for me :
appender.kafka.property.type=Property
appender.kafka.property.name=bootstrap.servers
appender.kafka.property.value=host:port