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This typically means that the "fetch size" of the consumer is too small. Each time the consumer pulls data from the broker, it reads bytes up to a configured limit. If that limit is smaller than the largest single message stored in Kafka, the consumer can't decode the message properly and will throw an InvalidMessageSizeException. To fix this, increase the limit by setting the property "fetch.size" (0.7) / "fetch.message.max.bytes" (0.8) properly in config/consumer.properties. The default fetch.size is 300,000 bytes.

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If the consumer is in a different data center from the broker, you may need to tune the socket buffer size to amortize the long network latency. Specifically, for Kafka 0.7, you can increase socket.receive.buffer in the broker, and socket.buffersize and fetch.size in the consumer. For Kafka 0.8, the consumer properties are socket.receive.buffer.bytes and fetch.message.max.bytes

How can I rewind the offset in the consumer?

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