Juhi Bhadviya created KAFKA-13738:
-------------------------------------
Summary: Mirror Maker2 properties are not being picked up from
properties file
Key: KAFKA-13738
URL: https://issues.apache.org/jira/browse/KAFKA-13738
Project: Kafka
Issue Type: Bug
Components: mirrormaker
Affects Versions: 2.8.0
Reporter: Juhi Bhadviya
We have created a custom docker image using `confluentinc/cp-kafka:7.0.1` :
```
FROM confluentinc/cp-kafka:7.0.1 as Builder
FROM openjdk11:alpine-jre
RUN apk update && apk upgrade && apk --no-cache add bash
COPY --from=Builder /usr/share/java/kafka/kafka_*-ccs.jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/scala-*.jar /usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/metrics-core-*.jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/jopt-simple-*.jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/argparse*[.]jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/slf4j-api-*[.]jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/slf4j-log4j12-*[.]jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/confluent-log4j-*[.]jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/connect-*.jar /usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/reflections-*.jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/javassist-*.jar
/usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/maven-*.jar /usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/commons-*.jar /usr/share/java/kafka/
COPY --from=Builder /usr/share/java/kafka/jackson-*.jar /usr/share/java/kafka/
COPY --from=Builder /usr/share/java/cp-base-new/kafka-clients-*-ccs.jar
/usr/share/java/kafka/
COPY --from=Builder /etc/kafka/connect-log4j.properties
/etc/kafka/connect-log4j.properties
ENV CLASSPATH='/usr/share/java/kafka/*:/usr/share/java/kafka/*'
ENV
KAFKA_LOG4J_OPTS='-Dlog4j.configuration=file:/etc/kafka/connect-log4j.properties'
COPY --from=0 /bin/connect-mirror-maker /bin/kafka-run-class /bin/
RUN cp /opt/java/openjdk/lib/security/cacerts /tmp/kafka.client.truststore.jks
RUN mkdir -p /tmp/config
CMD ["sh", "-c", "/bin/connect-mirror-maker /tmp/config/mm2.properties"]
```
The mm2.properties file is as below:
```
clusters = source, target
source.bootstrap.servers = ""
target.bootstrap.servers = ""
#security.protocol=SSL
source.ssl.truststore.location=/tmp/kafka.client.truststore.jks
source.security.protocol=SASL_SSL
source.sasl.mechanism=SCRAM-SHA-512
source.sasl.jaas.config=org.apache.kafka.common.security.scram.ScramLoginModule
required username="" password="";
target.ssl.truststore.location=/tmp/kafka.client.truststore.jks
target.security.protocol=SASL_SSL
target.sasl.mechanism=SCRAM-SHA-512
target.sasl.jaas.config=org.apache.kafka.common.security.scram.ScramLoginModule
required username="" password="";
source->target.enabled = true
target->source.enabled = false
topics = .*
groups = .*
tasks.max = 1
replication.factor = 3
refresh.topics.enabled = true
sync.topic.configs.enabled = true
refresh.topics.interval.seconds = 5
topics.blacklist = random
groups.blacklist = random
# Enable heartbeats and checkpoints.
source->target.emit.heartbeats.enabled = true
source->target.emit.checkpoints.enabled = true
source->target.sync.group.offsets.enabled = true
```
However in MM2 logs, the properties are not set as per the property file
provided, instead uses default values:
```
sync.group.offsets.enabled = false
```
Due this consumer offset sync is not working.
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