Github user asfgit closed the pull request at:
https://github.com/apache/spark/pull/16040
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GitHub user AnthonyTruchet opened a pull request:
https://github.com/apache/spark/pull/16040
[SPARK-18612][MLLIB] Delete broadcasted variable in LBFGS CostFun
## What changes were proposed in this pull request?
Fix a broadcasted variable leak occurring at each invocation of
