Dong Wang created SPARK-30548:
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Summary: Cached blockInfo in BlockMatrix.scala is never released
Key: SPARK-30548
URL: https://issues.apache.org/jira/browse/SPARK-30548
Project: Spark
Issue Type: Improvement
Components: MLlib
Affects Versions: 2.4.4
Reporter: Dong Wang
The private variable _blockInfo_ in mllib.linalg.distribtued.BlockMatrix is
never unpersisted since a BlockMatrix instance is created.
{code:scala}
private lazy val blockInfo = blocks.mapValues(block => (block.numRows,
block.numCols)).cache()
{code}
I think we should add an API to unpersist this variable.
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