You are viewing a plain text version of this content. The canonical link for it is here.
Posted to dev@kafka.apache.org by "Chris Egerton (Jira)" <ji...@apache.org> on 2023/02/14 21:40:00 UTC
[jira] [Resolved] (KAFKA-12893) MM2 fails to replicate if starting two+ nodes same time
[ https://issues.apache.org/jira/browse/KAFKA-12893?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Chris Egerton resolved KAFKA-12893.
-----------------------------------
Resolution: Duplicate
> MM2 fails to replicate if starting two+ nodes same time
> -------------------------------------------------------
>
> Key: KAFKA-12893
> URL: https://issues.apache.org/jira/browse/KAFKA-12893
> Project: Kafka
> Issue Type: Bug
> Components: mirrormaker
> Affects Versions: 2.8.0
> Reporter: Tommi Vainikainen
> Priority: Major
>
> I've observed a situation where starting more than one MM2 node in parallel, MM2 fails to start replication ie. replication flow seems to be stuck without action. I used exactly same mm2.properties file to start only one at a time, and the replication flow was proceeding smoothly.
> In my setup dc1 has topic "mytopic1" and there is a producer with approx 1 msg/sec, and I'm trying to repilcate this to dc2. What I observed is that dc1.mytopic1 is created when initially launching two paraller MM2 instances, but no messages gets written into the topic as I would expect. If I kill MM2 instances, and only start one MM2 node, then MM2 starts replicating the messages in mytopic1.
> My mm2.properties:
> clusters=dc2, dc1
> dc1->dc2.emit.heartbeats.enabled=true
> dc1->dc2.enabled=true
> dc1->dc2.sync.group.offsets.enabled=false
> dc1->dc2.sync.group.offsets.interval.seconds=45
> dc1->dc2.topics=mytopic1
> dc1->dc2.topics.exclude=
> dc1.bootstrap.servers=tvainika-dc1-dev-sandbox.aivencloud.com:12693
> dc1.security.protocol=SSL
> dc1.ssl.keystore.type=PKCS12
> dc1.ssl.keystore.location=dc1/client.keystore.p12
> dc1.ssl.keystore.password=secret
> dc1.ssl.key.password=secret
> dc1.ssl.truststore.location=dc1/client.truststore.jks
> dc1.ssl.truststore.password=secret
> dc2.bootstrap.servers=tvainika-dc2-dev-sandbox.aivencloud.com:12693
> dc2.security.protocol=SSL
> dc2.ssl.keystore.type=PKCS12
> dc2.ssl.keystore.location=dc2/client.keystore.p12
> dc2.ssl.keystore.password=secret
> dc2.ssl.key.password=secret
> dc2.ssl.truststore.location=dc2/client.truststore.jks
> dc2.ssl.truststore.password=secret
> tasks.max=3
--
This message was sent by Atlassian Jira
(v8.20.10#820010)