Ahmed Hamdy created FLINK-31772:
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Summary: AsyncSinkWriter Performance regression due to AIMD rate
limiting strategy
Key: FLINK-31772
URL: https://issues.apache.org/jira/browse/FLINK-31772
Project: Flink
Issue Type: Bug
Components: Connectors / Common, Connectors / Firehose, Connectors /
Kinesis
Affects Versions: aws-connector-4.1.0, aws-connector-4.0.0, 1.16.1,
aws-connector-3.0.0, 1.16.0
Reporter: Ahmed Hamdy
Fix For: 1.16.2, aws-connector-4.2.0
Attachments: Screenshot 2023-04-11 at 12.56.10.png, Screenshot
2023-04-11 at 12.58.09.png, Screenshot 2023-04-11 at 13.01.47.png
h1. Issue
While benchmarking the {{KinesisStreamSink}} for 1.15 against the legacy
{{FlinkKinesisProduced}} , it is observed that the new sink has a performance
regression against the deprecated sink for same environment setting.
Further investigation identified that the AIMD Ratelimiting strategy is the
bottleneck for the regression.
Attached results for {{KinesisStreamSink}} against {FlinkKinesisProducer} and
{KinesisStreamSink} after disabling {{AIMDRatelimitingStrategy}}
h2. Environment Settings
- Benchmarking was performed on AWS KDA.
- Application logic is just sending records downstream
- Application parallelism was tested to be 1.
- Kinesis stream number of shards was tested with 8 and 12.
- payload size was 1Kb and 100Kb.
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