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Posted to issues@spark.apache.org by "Biao Ma (JIRA)" <ji...@apache.org> on 2016/07/18 02:00:25 UTC
[jira] [Updated] (SPARK-16593) a
[ https://issues.apache.org/jira/browse/SPARK-16593?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Biao Ma updated SPARK-16593:
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Summary: a (was: Provide a pre-fetch mechanism to accelerate shuffle stage.)
> a
> -
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> Key: SPARK-16593
> URL: https://issues.apache.org/jira/browse/SPARK-16593
> Project: Spark
> Issue Type: Improvement
> Components: Spark Core
> Reporter: Biao Ma
> Priority: Minor
> Labels: features
>
> Currently, the `NettyBlockRpcServer` will reading data through BlockManager, while the block is not cached in memory, the data should be read from DISK first, then into MEM. I wonder if we implement a mechanism add a message contains the blockIds that the same as the openBlock message but one loop ahead, then the `NettyBlockRpcServer ` will load the block ready for transfer to the reduce side.
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