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Fabian Lange updated KAFKA-10210: --------------------------------- Description: We are using an error aggregation framework which uses the log4j/slf4j log message templates and aggregates based on them. That means any parameters passed in will not count as new errors, but just as new instances of the same error. We are having the problem that every time we do a restart, we are getting errors like these: [Consumer clientId=saas_tenant_prod_ui-backend_saas_topic, groupId=saas_tenant_prod_ui-backend] Offset commit failed on partition saas_topic-0 at offset 3518: The coordinator is not aware of this member. As far as I can tell, the Error message is created using a template like Offset commit failed on partition {} at offset {}: The coordinator is not aware of this member. (https://github.com/apache/kafka/blob/2.5.0/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L1160) But then LogContext adds the prefix by concatenating it to the log message: https://github.com/apache/kafka/blob/2.5.0/clients/src/main/java/org/apache/kafka/common/utils/LogContext.java#L708 @Override public void error(String message, Object... args) { logger.error(addPrefix(message), args); } I think it would be desirable to add the prefix as template variable "{}" and then pass the prefix text as first argument. was: We are using an error aggregation framework which uses the log4j/slf4j log message templates and aggregates based on them. That means any parameters passed in will not count as new errors, but just as new instances of the same error. We are having the problem that every time we do a restart, we are getting errors like these: [Consumer clientId=saas_tenant_prod_ui-backend_saas_topic, groupId=saas_tenant_prod_ui-backend] Offset commit failed on partition saas_topic-0 at offset 3518: The coordinator is not aware of this member. As far as I can tell, the Error message is created using a template like Offset commit failed on partition {} at offset {}: The coordinator is not aware of this member. But then LogContext adds the prefix by concatenating it to the log message: https://github.com/apache/kafka/blob/2.5.0/clients/src/main/java/org/apache/kafka/common/utils/LogContext.java#L708 @Override public void error(String message, Object... args) { logger.error(addPrefix(message), args); } I think it would be desirable to add the prefix as template variable "{}" and then pass the prefix text as first argument. > Use templated log message for LogContext > ---------------------------------------- > > Key: KAFKA-10210 > URL: https://issues.apache.org/jira/browse/KAFKA-10210 > Project: Kafka > Issue Type: Bug > Components: clients > Affects Versions: 2.5.0 > Reporter: Fabian Lange > Priority: Minor > > We are using an error aggregation framework which uses the log4j/slf4j log > message templates and aggregates based on them. That means any parameters > passed in will not count as new errors, but just as new instances of the same > error. > We are having the problem that every time we do a restart, we are getting > errors like these: > [Consumer clientId=saas_tenant_prod_ui-backend_saas_topic, > groupId=saas_tenant_prod_ui-backend] Offset commit failed on partition > saas_topic-0 at offset 3518: The coordinator is not aware of this member. > As far as I can tell, the Error message is created using a template like > Offset commit failed on partition {} at offset {}: The coordinator is not > aware of this member. > (https://github.com/apache/kafka/blob/2.5.0/clients/src/main/java/org/apache/kafka/clients/consumer/internals/ConsumerCoordinator.java#L1160) > But then LogContext adds the prefix by concatenating it to the log message: > https://github.com/apache/kafka/blob/2.5.0/clients/src/main/java/org/apache/kafka/common/utils/LogContext.java#L708 > @Override > public void error(String message, Object... args) { > logger.error(addPrefix(message), args); > } > I think it would be desirable to add the prefix as template variable "{}" and > then pass the prefix text as first argument. -- This message was sent by Atlassian Jira (v8.3.4#803005)