[SPARK-10087] [CORE] [BRANCH-1.5] Disable spark.shuffle.reduceLocality.enabled by default. #8296
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LGTM |
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Test build #41194 has finished for PR 8296 at commit
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retest this please. |
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I've merged this. |
asfgit
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Aug 19, 2015
…y.enabled by default. https://issues.apache.org/jira/browse/SPARK-10087 In some cases, when spark.shuffle.reduceLocality.enabled is enabled, we are scheduling all reducers to the same executor (the cluster has plenty of resources). Changing spark.shuffle.reduceLocality.enabled to false resolve the problem. Comments of #8280 provide more details of the symptom of this issue. This PR changes the default setting of `spark.shuffle.reduceLocality.enabled` to `false` for branch 1.5. Author: Yin Huai <[email protected]> Closes #8296 from yhuai/setNumPartitionsCorrectly-branch1.5.
thunterdb
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Dec 5, 2015
…y.enabled by default. https://issues.apache.org/jira/browse/SPARK-10087 In some cases, when spark.shuffle.reduceLocality.enabled is enabled, we are scheduling all reducers to the same executor (the cluster has plenty of resources). Changing spark.shuffle.reduceLocality.enabled to false resolve the problem. Comments of apache#8280 provide more details of the symptom of this issue. This PR changes the default setting of `spark.shuffle.reduceLocality.enabled` to `false` for branch 1.5. Author: Yin Huai <[email protected]> Closes apache#8296 from yhuai/setNumPartitionsCorrectly-branch1.5.
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https://issues.apache.org/jira/browse/SPARK-10087
In some cases, when spark.shuffle.reduceLocality.enabled is enabled, we are scheduling all reducers to the same executor (the cluster has plenty of resources). Changing spark.shuffle.reduceLocality.enabled to false resolve the problem.
Comments of #8280 provide more details of the symptom of this issue.
This PR changes the default setting of
spark.shuffle.reduceLocality.enabledtofalsefor branch 1.5.