[ https://issues.apache.org/jira/browse/KAFKA-5133?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
james chien updated KAFKA-5133: ------------------------------- Description: If broker is down, we supply logging message to let user know `java.net.ConnectException: Connection refused` but not should be debug message because in normal situation user may not set logging level with "INFO" or "WARN" but not "DEBUG". 2017-04-27 15:54:47,759 DEBUG [org.apache.kafka.common.network.Selector] - Connection with localhost/127.0.0.1 disconnected java.net.ConnectException: Connection refused at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) at sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) at org.apache.kafka.common.network.PlaintextTransportLayer.finishConnect(PlaintextTransportLayer.java:50) at org.apache.kafka.common.network.KafkaChannel.finishConnect(KafkaChannel.java:80) at org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:339) at org.apache.kafka.common.network.Selector.poll(Selector.java:307) at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:359) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:230) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:206) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:197) at org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.awaitMetadataUpdate(ConsumerNetworkClient.java:132) at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:223) at org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:200) at org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:285) at org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1037) at org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1002) at com.kafka.Test.main(Test.java:27) was:If broker is down, we supply logging message to let user know `java.net.ConnectException: Connection refused` but not should be debug message because in normal situation user may not set logging level with "INFO" or "WARN" but not "DEBUG". > Changing "connection refused" message from logging level "debug" into "warn" > ---------------------------------------------------------------------------- > > Key: KAFKA-5133 > URL: https://issues.apache.org/jira/browse/KAFKA-5133 > Project: Kafka > Issue Type: Improvement > Components: clients > Reporter: james chien > Assignee: james chien > Priority: Critical > Labels: newbie > Fix For: 0.11.0.0 > > > If broker is down, we supply logging message to let user know > `java.net.ConnectException: Connection refused` but not should be debug > message because in normal situation user may not set logging level with > "INFO" or "WARN" but not "DEBUG". > 2017-04-27 15:54:47,759 DEBUG [org.apache.kafka.common.network.Selector] - > Connection with localhost/127.0.0.1 disconnected > java.net.ConnectException: Connection refused > at sun.nio.ch.SocketChannelImpl.checkConnect(Native Method) > at > sun.nio.ch.SocketChannelImpl.finishConnect(SocketChannelImpl.java:717) > at > org.apache.kafka.common.network.PlaintextTransportLayer.finishConnect(PlaintextTransportLayer.java:50) > at > org.apache.kafka.common.network.KafkaChannel.finishConnect(KafkaChannel.java:80) > at > org.apache.kafka.common.network.Selector.pollSelectionKeys(Selector.java:339) > at org.apache.kafka.common.network.Selector.poll(Selector.java:307) > at org.apache.kafka.clients.NetworkClient.poll(NetworkClient.java:359) > at > org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:230) > at > org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:206) > at > org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.poll(ConsumerNetworkClient.java:197) > at > org.apache.kafka.clients.consumer.internals.ConsumerNetworkClient.awaitMetadataUpdate(ConsumerNetworkClient.java:132) > at > org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:223) > at > org.apache.kafka.clients.consumer.internals.AbstractCoordinator.ensureCoordinatorReady(AbstractCoordinator.java:200) > at > org.apache.kafka.clients.consumer.internals.ConsumerCoordinator.poll(ConsumerCoordinator.java:285) > at > org.apache.kafka.clients.consumer.KafkaConsumer.pollOnce(KafkaConsumer.java:1037) > at > org.apache.kafka.clients.consumer.KafkaConsumer.poll(KafkaConsumer.java:1002) > at com.kafka.Test.main(Test.java:27) -- This message was sent by Atlassian JIRA (v6.3.15#6346)