BrianLing created KAFKA-3465:
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Summary: kafka.tools.ConsumerOffsetChecker won't align with kafka
New Consumer mode
Key: KAFKA-3465
URL: https://issues.apache.org/jira/browse/KAFKA-3465
Project: Kafka
Issue Type: Improvement
Components: core
Affects Versions: 0.9.0.0
Reporter: BrianLing
When we enable mirrorMake to migrate Kafka event from one to other with
"new.consumer" mode:
java -Xmx2G -server -XX:+UseG1GC -XX:MaxGCPauseMillis=20
-XX:InitiatingHeapOccupancyPercent=35 -XX:+DisableExplicitGC
-Djava.awt.headless=true -Dcom.sun.management.jmxremote
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false -Dkafka.logs.dir=/kafka/kafka-app-logs
-Dlog4j.configuration=file:/kafka/kafka_2.10-0.9.0.0/bin/../config/tools-log4j.properties
-cp :/kafka/kafka_2.10-0.9.0.0/bin/../libs/*
-Dkafka.logs.filename=lvs-slca-mm.log kafka.tools.MirrorMaker lvs-slca-mm.log
--consumer.config ../config/consumer.properties --new.consumer --num.streams 4
--producer.config ../config/producer-slca.properties --whitelist risk.*
When we use ConsumerOffzsetChecker tool, notice the lag won't changed and the
owner is none.
bin/kafka-run-class.sh kafka.tools.ConsumerOffsetChecker --broker-info --group
lvs.slca.mirrormaker --zookeeper lvsdmetlvm01.lvs.paypal.com:2181 --topic
risk.radd.acct_misc01
Group Topic Pid Offset logSize
Lag Owner
lvs.slca.mirrormaker XXXX 0 418578332 418678347 100015
none
lvs.slca.mirrormaker XXXX 1 418598026 418698338 100312
none
I think it's due to 0.9.0 new feature to switch zookeeper dependency to kafka
internal to store offset & consumer owner information.
Does it mean we can not use the below command to check new consumer’s
lag since current lag formula: lag= logSize – offset
https://github.com/apache/kafka/blob/trunk/core/src/main/scala/kafka/tools/ConsumerOffsetChecker.scala#L80
https://github.com/apache/kafka/blob/0.9.0/core/src/main/scala/kafka/tools/ConsumerOffsetChecker.scala#L174-L182
=> offSet Fetch from zookeeper instead of from Kafka
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