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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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Xintong Song closed FLINK-32870.
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Fix Version/s: 1.18.0
Resolution: Fixed
- master(1.19): ade583cf80478ac60e9b83fc0a97f36bc2b26f1c
- release-1.18: d100ab65367fe0b3d74a9901bcaaa26049c996b0
> Reading multiple small buffers by reading and slicing one large buffer 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
> Labels: pull-request-available
> Fix For: 1.18.0
>
>
> 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 compressed, the size will become smaller (may less than
> 5K), which is pretty small for the network buffer and the file IO.
> We should read multiple small buffers by reading and slicing one large buffer
> to decrease the buffer competition and the file IO, leading to better
> performance.
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