[Solved] You configured MirrorMaker 2 with:topics = "topic1,topic2" num.streams = 0What is the problem with this configuration? | Kafka

Kafka - Multi-Datacenter and Replication

You configured MirrorMaker 2 with:

topics = "topic1,topic2"
num.streams = 0

What is the problem with this configuration?

Atopics must be a single topic, not multiple

Bnum.streams cannot be zero; it must be at least 1

Ctopics should be configured as a list, not a string

Dnum.streams must be an even number

Step-by-Step Solution

Solution:

Step 1: Check num.streams value validity
num.streams controls parallel streams and must be at least 1 to work properly.
Step 2: Identify error in config
Setting num.streams to 0 disables streams, causing MirrorMaker 2 to fail or not copy data.
Final Answer:
num.streams cannot be zero; it must be at least 1 -> Option B
Quick Check:
num.streams ≥ 1 required [OK]

Quick Trick: num.streams must be ≥ 1, zero disables copying [OK]

Common Mistakes:

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