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https://issues.apache.org/jira/browse/FLINK-9897?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Lakshmi Rao updated FLINK-9897:
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Summary: Further enhance adaptive reads in Kinesis Connector to read more
records in the case of long running loops (was: Further enhance adaptiveReads
in Kinesis Connector to read more records in the case of long running loops)
> Further enhance adaptive reads in Kinesis Connector to read more records in
> the case of long running loops
> ----------------------------------------------------------------------------------------------------------
>
> Key: FLINK-9897
> URL: https://issues.apache.org/jira/browse/FLINK-9897
> Project: Flink
> Issue Type: Improvement
> Components: Kinesis Connector
> Affects Versions: 1.4.2, 1.5.1
> Reporter: Lakshmi Rao
> Assignee: Lakshmi Rao
> Priority: Major
> Labels: pull-request-available
>
> In FLINK-9692, we introduced the ability for the shardConsumer to adaptively
> read more records based on the current average record size to optimize the 2
> Mb/sec shard limit. The feature maximizes maxNumberOfRecordsPerFetch of 5
> reads/sec (as prescribed by Kinesis limits). In the case where applications
> take more time to process records in the run loop, they are no longer able to
> read at a frequency of 5 reads/sec (even though their fetchIntervalMillis
> maybe set to 200 ms). In such a scenario, the maxNumberOfRecordsPerFetch
> should be calculated based on the time that the run loop actually takes as
> opposed to fetchIntervalMillis.
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