Question

KCL reads too slowly even though Kinesis stream has enough throughput. What are the possible reasons for this?

A. The KCL consumer is not processing the data fast enough.
B. The Kinesis stream is not configured with enough shards.
C. The KCL consumer is not using the latest version of the KCL library.
D. All of the above.

Answer 1

The possible reasons for slow KCL reading include the consumer not processing data fast enough, insufficient shards in the Kinesis stream, and not using the latest version of the KCL library.

Step-by-step explanation:

The possible reasons for KCL reading slowly, despite having enough throughput in the Kinesis stream, could be:

1. The KCL consumer is not processing the data fast enough: KCL relies on a consumer application to process the data received from the Kinesis stream. If the consumer application is not able to keep up with the incoming data, it can result in slower processing.
2. The Kinesis stream is not configured with enough shards: The number of shards in a Kinesis stream determines the parallelism and throughput. If the stream does not have enough shards to handle the incoming data, it can lead to slower performance.
3. The KCL consumer is not using the latest version of the KCL library: It's important to use the latest version of the KCL library as it may contain performance improvements and bug fixes that can enhance the processing speed.

These factors, individually or in combination, can contribute to slower reading speed in KCL.