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Alexey Romanenko resolved BEAM-9439. ------------------------------------ Fix Version/s: 2.22.0 Resolution: Fixed > KinesisReader does not report correct backlog statistics > --------------------------------------------------------- > > Key: BEAM-9439 > URL: https://issues.apache.org/jira/browse/BEAM-9439 > Project: Beam > Issue Type: Bug > Components: io-java-kinesis > Reporter: Sam Whittle > Assignee: Sebastian Graca > Priority: Major > Fix For: 2.22.0 > > Time Spent: 1h 40m > Remaining Estimate: 0h > > The KinesisReader implementing KinesisIO reports backlog by implementing the > UnboundedSource.getTotalBacklogBytes() > method as opposed to the > UnboundedSource.getSplitBacklogBytes() > This value is supposed to represent the total backlog across all shards. > This function is implemented by calling > SimplifiedKinesisClient.getBacklogBytes with the watermark of the kinesis > shards managed within the UnboundedReader instance. As this watermark may be > further ahead than the watermark across all shards, this may miss backlog > bytes. > An additional concern is that the watermark is calculated using a > WatermarkPolicy, which means that the watermark may be inconsistent to the > kinesis timestamp for querying backlog. -- This message was sent by Atlassian Jira (v8.3.4#803005)