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ASF GitHub Bot logged work on BEAM-8382: ---------------------------------------- Author: ASF GitHub Bot Created on: 01/Mar/20 22:50 Start Date: 01/Mar/20 22:50 Worklog Time Spent: 10m Work Description: jfarr commented on issue #9765: [WIP][BEAM-8382] Add rate limit policy to KinesisIO.Read URL: https://github.com/apache/beam/pull/9765#issuecomment-593156655 Hi @aromanenko-dev, sure we have tested it. Here's what read throttles look like with a 1s fixed delay: <img width="513" alt="Screen Shot 2020-03-01 at 2 46 05 PM" src="https://user-images.githubusercontent.com/1551631/75635518-a997ad80-5bcb-11ea-89df-a3bcb663adef.png"> ---------------------------------------------------------------- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. For queries about this service, please contact Infrastructure at: us...@infra.apache.org Issue Time Tracking ------------------- Worklog Id: (was: 395683) Time Spent: 13h 50m (was: 13h 40m) > Add polling interval to KinesisIO.Read > -------------------------------------- > > Key: BEAM-8382 > URL: https://issues.apache.org/jira/browse/BEAM-8382 > Project: Beam > Issue Type: Improvement > Components: io-java-kinesis > Affects Versions: 2.13.0, 2.14.0, 2.15.0 > Reporter: Jonothan Farr > Assignee: Jonothan Farr > Priority: Major > Time Spent: 13h 50m > Remaining Estimate: 0h > > With the current implementation we are observing Kinesis throttling due to > ReadProvisionedThroughputExceeded on the order of hundreds of times per > second, regardless of the actual Kinesis throughput. This is because the > ShardReadersPool readLoop() method is polling getRecords() as fast as > possible. > From the KDS documentation: > {quote}Each shard can support up to five read transactions per second. > {quote} > and > {quote}For best results, sleep for at least 1 second (1,000 milliseconds) > between calls to getRecords to avoid exceeding the limit on getRecords > frequency. > {quote} > [https://docs.aws.amazon.com/streams/latest/dev/service-sizes-and-limits.html] > [https://docs.aws.amazon.com/streams/latest/dev/developing-consumers-with-sdk.html] -- This message was sent by Atlassian Jira (v8.3.4#803005)