logging - 配置Kafka Connect分布式连接器日志(connectDistributed.out)

Question

目前有两种Kafka Connect正在收集日志。

connect-rest.log.2018-07-01-21 , connect-rest.log.2018-07-01-22 ...

connectDistributed.out

问题是我不知道如何配置 connectDistributed.out Kafka Connect 中的文件。以下是该文件的示例输出:

[2018-07-11 08:42:40,798] INFO WorkerSinkTask{id=elasticsearch-sink- 
connector-0} Committing offsets asynchronously using sequence number 
216: {test-1=OffsetAndMetadata{offset=476028, metadata=‘’}, 
test-0=OffsetAndMetadata{offset=478923, metadata=‘’}, 
test-2=OffsetAndMetadata{offset=477944, metadata=‘’}} 
(org.apache.kafka.connect.runtime.WorkerSinkTask:325)
[2018-07-11 08:43:40,798] INFO WorkerSinkTask{id=elasticsearch-sink-connector0} 
Committing offsets asynchronously using sequence number 217: 
{test-1=OffsetAndMetadata{offset=476404, metadata=‘’}, 
test-0=OffsetAndMetadata{offset=479241, metadata=‘’}, 
test-2=OffsetAndMetadata{offset=478316, metadata=‘’}} 
(org.apache.kafka.connect.runtime.WorkerSinkTask:325)

没有配置任何日志记录选项，文件大小随着时间的推移变得越来越大。今天，它达到了 20GB，我不得不手动清空文件。所以我的问题是如何配置这个 connectDistributed.out ?
我正在为其他组件(例如 kafka 代理日志)配置日志选项。

以下是 confluent-4.1.0/etc/kafka下的一些Kafka Connect相关的日志配置我正在使用的。

log4j.properties

log4j.appender.requestAppender.File=${kafka.logs.dir}/kafka-request.log
log4j.appender.requestAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.requestAppender.layout.ConversionPattern=[%d] %p %m (%c)%n

log4j.appender.cleanerAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.cleanerAppender.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.cleanerAppender.File=${kafka.logs.dir}/log-cleaner.log
log4j.appender.cleanerAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.cleanerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n

log4j.appender.controllerAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.controllerAppender.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.controllerAppender.File=${kafka.logs.dir}/controller.log
log4j.appender.controllerAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.controllerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n

log4j.appender.authorizerAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.authorizerAppender.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.authorizerAppender.File=${kafka.logs.dir}/kafka-authorizer.log
log4j.appender.authorizerAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.authorizerAppender.layout.ConversionPattern=[%d] %p %m (%c)%n

# Change the two lines below to adjust ZK client logging
log4j.logger.org.I0Itec.zkclient.ZkClient=INFO
log4j.logger.org.apache.zookeeper=INFO

# Change the two lines below to adjust the general broker logging level (output to server.log and stdout)
log4j.logger.kafka=INFO
log4j.logger.org.apache.kafka=INFO

# Change to DEBUG or TRACE to enable request logging
log4j.logger.kafka.request.logger=WARN, requestAppender
log4j.additivity.kafka.request.logger=false

# Uncomment the lines below and change log4j.logger.kafka.network.RequestChannel$ to TRACE for additional output
# related to the handling of requests
#log4j.logger.kafka.network.Processor=TRACE, requestAppender
#log4j.logger.kafka.server.KafkaApis=TRACE, requestAppender
#log4j.additivity.kafka.server.KafkaApis=false
log4j.logger.kafka.network.RequestChannel$=WARN, requestAppender
log4j.additivity.kafka.network.RequestChannel$=false

log4j.logger.kafka.controller=TRACE, controllerAppender
log4j.additivity.kafka.controller=false

log4j.logger.kafka.log.LogCleaner=INFO, cleanerAppender
log4j.additivity.kafka.log.LogCleaner=false

log4j.logger.state.change.logger=TRACE, stateChangeAppender
log4j.additivity.state.change.logger=false

# Access denials are logged at INFO level, change to DEBUG to also log allowed accesses
log4j.logger.kafka.authorizer.logger=INFO, authorizerAppender
log4j.additivity.kafka.authorizer.logger=false

连接-log4j.properties

log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d] %p %m (%c:%L)%n

log4j.logger.org.apache.zookeeper=ERROR
log4j.logger.org.I0Itec.zkclient=ERROR
log4j.logger.org.reflections=ERROR


log4j.appender.kafkaConnectRestAppender=org.apache.log4j.DailyRollingFileAppender
log4j.appender.kafkaConnectRestAppender.DatePattern='.'yyyy-MM-dd-HH
log4j.appender.kafkaConnectRestAppender.File=/home/ec2-user/logs/connect-rest.log
log4j.appender.kafkaConnectRestAppender.layout=org.apache.log4j.PatternLayout
log4j.appender.kafkaConnectRestAppender.layout.ConversionPattern=[%d] %p %m (%c)%n

log4j.logger.org.apache.kafka.connect.runtime.rest=INFO, kafkaConnectRestAppender
log4j.additivity.org.apache.kafka.connect.runtime.rest=false

Answer 1

connectDistributed.out文件仅在您使用守护进程模式时才存在，例如

connect-distributed -daemon connect-distributed.properties

原因 : 来自 kafka-run-class脚本， CONSOLE_OUTPUT_FILE设置为 connectDistributed.out

# Launch mode
if [ "x$DAEMON_MODE" = "xtrue" ]; then
    nohup $JAVA $KAFKA_HEAP_OPTS $KAFKA_JVM_PERFORMANCE_OPTS $KAFKA_GC_LOG_OPTS $KAFKA_JMX_OPTS $KAFKA_LOG4J_OPTS -cp $CLASSPATH $KAFKA_OPTS "$@" > "$CONSOLE_OUTPUT_FILE" 2>&1 < /dev/null &
else... 

选项 1:加载自定义 log4j 属性文件

您可以更新 KAFKA_LOG4J_OPTS在开始连接之前指向您想要的任何 log4j 属性文件的环境变量(请参见下面的示例)

$ export KAFKA_LOG4J_OPTS="-Dlog4j.configuration=file://path/to/connect-log4j-new.properties"
$ connect-distributed connect-distributed.properties

注意:不使用 -daemon这里

如果您不再拥有 ConsoleAppender在 log4j 属性中，这将几乎没有输出，并且只是挂起，所以对 nohup 会很好。它。

默认的 log4j 配置名为 connect-log4j.properties ，在 Confluent Platform 中，这是在 etc/kafka/文件夹。这是默认情况下的样子

log4j.rootLogger=INFO, stdout

log4j.appender.stdout=org.apache.log4j.ConsoleAppender

为了设置最大日志文件大小，您需要更改根记录器以转到 FileAppender 而不是 ConsoleAppender，但我更喜欢使用 DailyRollingFileAppender .

Here is an example

log4j.rootLogger=INFO, stdout, FILE

log4j.appender.FILE=org.apache.log4j.DailyRollingFileAppender
log4j.appender.FILE.DatePattern='.'yyyy-MM-dd
log4j.appender.FILE.File=/var/log/kafka-connect/connect.log
log4j.appender.FILE.layout=org.apache.log4j.PatternLayout
log4j.appender.FILE.layout.ConversionPattern=[%d] %p %m (%c)%n

log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=[%d] %p %m (%c:%L)%n

log4j.logger.org.apache.zookeeper=ERROR
log4j.logger.org.I0Itec.zkclient=ERROR
log4j.logger.org.reflections=ERROR