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https://issues.apache.org/jira/browse/HDFS-8907?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Andrew Wang updated HDFS-8907:
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Issue Type: Improvement (was: Sub-task)
Parent: (was: HDFS-8031)
> Configurable striping read buffer threhold
> ------------------------------------------
>
> Key: HDFS-8907
> URL: https://issues.apache.org/jira/browse/HDFS-8907
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Kai Zheng
> Assignee: Kai Zheng
>
> In striping input stream, positional read merges all the possible strips
> together, while stateful read reads a strip a time. The former is efficient
> but may incur too large chunk buffers for a client to afford, the latter is
> simple good but can be improved for better throughput. This would consolidate
> the both and use a configurable (new or existing) buffer threshold to control
> how it goes. Fixed chunk buffers for the read will be allocated accordingly
> and reused time and time, as existing stateful read does. The aligned strips
> to read a time may be computed against the threshold.
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