wzhfy commented on code in PR #37404:
URL: https://github.com/apache/spark/pull/37404#discussion_r949765561
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sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileStatusCache.scala:
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@@ -37,7 +37,7 @@ import org.apache.spark.util.SizeEstimator
object FileStatusCache {
private var sharedCache: SharedInMemoryCache = _
- private[spark] val sessionToCache = new mutable.HashMap[String,
FileStatusCache]
+ private[spark] val sessionToCache = new mutable.HashMap[String,
Seq[FileStatusCache]]
Review Comment:
better to use mutable.Buffer to avoid copy
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