是否可以使用 MirrorMaker2 复制没有别名前缀的 kafka 主题 [英] Is it possible to replicate kafka topics without alias prefix with MirrorMaker2

问题描述

我正在尝试在 2 个集群之间设置复制，但不想更改主题名称.例如，如果我有一个名为some_topic"的主题，它会自动复制到cluster1.some_topic"，我很确定这可以完成，但还没有找到正确的配置来改变它

I'm trying to set up replication between 2 clusters but don't want want the topic names to be changed. for example if i have a topic called "some_topic" it is automatically replicated to "cluster1.some_topic", I'm pretty sure this can be done but haven't found the correct config to change this

我当前的配置mirrormaker2.properties"

My current config "mirrormaker2.properties"

# Sample MirrorMaker 2.0 top-level configuration file
# Run with ./bin/connect-mirror-maker.sh connect-mirror-maker.properties 

# specify any number of cluster aliases
clusters = cluster1, cluster2

# connection information for each cluster
cluster1.bootstrap.servers = host1:9092,host2:9092,host3:9092
cluster2.bootstrap.servers = rep_host1:9092,rep_host2:9092,rep_host3:9092

# enable and configure individual replication flows
cluster1->cluster2.enabled = true
cluster1->cluster2.topics = sometopic.*

# customize as needed
# replication.policy.separator = _
# sync.topic.acls.enabled = false
# emit.heartbeats.interval.seconds = 5

供参考:

• https://cwiki.apache.org/confluence/display/KAFKA/KIP-382%3A+MirrorMaker+2.0#KIP-382:MirrorMaker2.0-RunningastandaloneMirrorMakerconnector
• https://kafka.apache.org/24/javadoc/index.html?constant-values.html

推荐答案

我认为上面的答案不合适.

I think the answer above is inappropriate.

在 Mirror Maker 2.0 中，如果要保持主题不变，则必须实现 ReplicationPolicy.

In Mirror Maker 2.0, if you want to keep the topic unmodified, you have to implement ReplicationPolicy.

您可以参考DefaultReplicationPolicy.class，然后覆盖formatRemoteTopic()，然后删除sourceClusterAlias + separator.最后在mm2.properties

You can refer to DefaultReplicationPolicy.class, and then override formatRemoteTopic(), after that you have to remove sourceClusterAlias + separator. In the end, configure replication.policy.class in the mm2.properties

我定义了MigrationReplicationPolicy.class

replication.policy.class = org.apache.kafka.connect.mirror.MigrationReplicationPolicy

你应该看到MirrorClientConfig,class，我知道你会明白

You should see MirrorClientConfig,class, I know that you will understand

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