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https://issues.apache.org/jira/browse/FLINK-32870?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yuxin Tan reassigned FLINK-32870:
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Assignee: Yuxin Tan
> Merge multiple small buffers into one large buffer when loading data for
> tiered storage
> ---------------------------------------------------------------------------------------
>
> Key: FLINK-32870
> URL: https://issues.apache.org/jira/browse/FLINK-32870
> Project: Flink
> Issue Type: Bug
> Components: Runtime / Network
> Affects Versions: 1.18.0
> Reporter: Yuxin Tan
> Assignee: Yuxin Tan
> Priority: Major
>
> Currently, when the file reader of tiered storage loads data from the disk
> file, it reads data in buffer granularity. Before compression, each buffer is
> 32K by default, after compression the size will become smaller (may less than
> 5K), which is pretty small for the network buffer and the file IO.
> We should merge the multiple small buffers into a larger one to decrease the
> buffer competition and the file IO, leading to better performance.
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