Chapter 49. EntityTopicOperatorSpec schema reference Used in: EntityOperatorSpec Full list of EntityTopicOperatorSpec schema properties Configures the Topic Operator. 49.1. logging The Topic Operator has a configurable logger: rootLogger.level The Topic Operator uses the Apache log4j2 logger implementation. Use the logging property in the entityOperator.topicOperator field of the Kafka resource Kafka resource to configure loggers and logger levels. You can set the log levels by specifying the logger and level directly (inline) or use a custom (external) ConfigMap. If a ConfigMap is used, you set logging.valueFrom.configMapKeyRef.name property to the name of the ConfigMap containing the external logging configuration. Inside the ConfigMap, the logging configuration is described using log4j2.properties . Both logging.valueFrom.configMapKeyRef.name and logging.valueFrom.configMapKeyRef.key properties are mandatory. A ConfigMap using the exact logging configuration specified is created with the custom resource when the Cluster Operator is running, then recreated after each reconciliation. If you do not specify a custom ConfigMap, default logging settings are used. If a specific logger value is not set, upper-level logger settings are inherited for that logger. For more information about log levels, see Apache logging services . Here we see examples of inline and external logging. The inline logging specifies the root logger level. You can also set log levels for specific classes or loggers by adding them to the loggers property. Inline logging apiVersion: kafka.strimzi.io/v1beta2 kind: Kafka metadata: name: my-cluster spec: kafka: # ... zookeeper: # ... entityOperator: # ... topicOperator: watchedNamespace: my-topic-namespace reconciliationIntervalSeconds: 60 logging: type: inline loggers: rootLogger.level: INFO logger.top.name: io.strimzi.operator.topic 1 logger.top.level: DEBUG 2 logger.toc.name: io.strimzi.operator.topic.TopicOperator 3 logger.toc.level: TRACE 4 logger.clients.level: DEBUG 5 # ... 1 Creates a logger for the topic package. 2 Sets the logging level for the topic package. 3 Creates a logger for the TopicOperator class. 4 Sets the logging level for the TopicOperator class. 5 Changes the logging level for the default clients logger. The clients logger is part of the logging configuration provided with Streams for Apache Kafka. By default, it is set to INFO . Note When investigating an issue with the operator, it's usually sufficient to change the rootLogger to DEBUG to get more detailed logs. However, keep in mind that setting the log level to DEBUG may result in a large amount of log output and may have performance implications. External logging apiVersion: kafka.strimzi.io/v1beta2 kind: Kafka metadata: name: my-cluster spec: kafka: # ... zookeeper: # ... entityOperator: # ... topicOperator: watchedNamespace: my-topic-namespace reconciliationIntervalSeconds: 60 logging: type: external valueFrom: configMapKeyRef: name: customConfigMap key: topic-operator-log4j2.properties # ... Garbage collector (GC) Garbage collector logging can also be enabled (or disabled) using the jvmOptions property . 49.2. EntityTopicOperatorSpec schema properties Property Property type Description watchedNamespace string The namespace the Topic Operator should watch. image string The image to use for the Topic Operator. reconciliationIntervalSeconds integer Interval between periodic reconciliations. zookeeperSessionTimeoutSeconds integer Timeout for the ZooKeeper session. startupProbe Probe Pod startup checking. livenessProbe Probe Pod liveness checking. readinessProbe Probe Pod readiness checking. resources ResourceRequirements CPU and memory resources to reserve. topicMetadataMaxAttempts integer The number of attempts at getting topic metadata. logging InlineLogging , ExternalLogging Logging configuration. jvmOptions JvmOptions JVM Options for pods.

Commands:
apiVersion: kafka.strimzi.io/v1beta2 kind: Kafka metadata: name: my-cluster spec: kafka: # zookeeper: # entityOperator: # topicOperator: watchedNamespace: my-topic-namespace reconciliationIntervalSeconds: 60 logging: type: inline loggers: rootLogger.level: INFO logger.top.name: io.strimzi.operator.topic 1 logger.top.level: DEBUG 2 logger.toc.name: io.strimzi.operator.topic.TopicOperator 3 logger.toc.level: TRACE 4 logger.clients.level: DEBUG 5 #
apiVersion: kafka.strimzi.io/v1beta2 kind: Kafka metadata: name: my-cluster spec: kafka: # zookeeper: # entityOperator: # topicOperator: watchedNamespace: my-topic-namespace reconciliationIntervalSeconds: 60 logging: type: external valueFrom: configMapKeyRef: name: customConfigMap key: topic-operator-log4j2.properties #