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| author | Takeshi YAMAMURO <linguin.m.s@gmail.com> | 2015-12-21 14:02:40 -0800 |
|---|---|---|
| committer | Andrew Or <andrew@databricks.com> | 2015-12-21 14:03:23 -0800 |
| commit | 935f46630685306edbdec91f71710703317fe129 (patch) | |
| tree | 7f87dfc225dd5ae8070162b61b2f6d1a6fcd9c4b /graphx/src | |
| parent | 4883a5087d481d4de5d3beabbd709853de01399a (diff) | |
| download | spark-935f46630685306edbdec91f71710703317fe129.tar.gz spark-935f46630685306edbdec91f71710703317fe129.tar.bz2 spark-935f46630685306edbdec91f71710703317fe129.zip | |
[SPARK-12392][CORE] Optimize a location order of broadcast blocks by considering preferred local hosts
When multiple workers exist in a host, we can bypass unnecessary remote access for broadcasts; block managers fetch broadcast blocks from the same host instead of remote hosts.
Author: Takeshi YAMAMURO <linguin.m.s@gmail.com>
Closes #10346 from maropu/OptimizeBlockLocationOrder.
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