Andrew Or created SPARK-13051:
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Summary: Do not maintain global singleton map for accumulators
Key: SPARK-13051
URL: https://issues.apache.org/jira/browse/SPARK-13051
Project: Spark
Issue Type: Bug
Components: Spark Core
Affects Versions: 1.0.0
Reporter: Andrew Or
Right now we register accumulators through `Accumulators.register`, and then
read these accumulators in DAGScheduler through `Accumulators.get`. This design
is very awkward and makes it hard to associate a list of accumulators with a
particular SparkContext. Global singleton is not a good pattern in general.
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