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[SPARK-27807][SQL] Parallel resolve leaf statuses InMemoryFileIndex #24679

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[SPARK-27807][SQL] Parallel resolve leaf statuses InMemoryFileIndex #24679

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5 changes: 3 additions & 2 deletions sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/InMemoryFileIndex.scala
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Original file line number Diff line number Diff line change
Expand Up @@ -32,6 +32,7 @@ import org.apache.spark.sql.SparkSession
import org.apache.spark.sql.execution.streaming.FileStreamSink
import org.apache.spark.sql.types.StructType
import org.apache.spark.util.SerializableConfiguration
import org.apache.spark.util.ThreadUtils.parmap


/**
Expand Down Expand Up @@ -297,7 +298,7 @@ object InMemoryFileIndex extends Logging {
val missingFiles = mutable.ArrayBuffer.empty[String]
val filteredLeafStatuses = allLeafStatuses.filterNot(
status => shouldFilterOut(status.getPath.getName))
val resolvedLeafStatuses = filteredLeafStatuses.flatMap {
val resolvedLeafStatuses = parmap(filteredLeafStatuses.toSeq, "resolveLeafStatuses", 8) {
case f: LocatedFileStatus =>
Some(f)

Expand Down Expand Up @@ -334,7 +335,7 @@ object InMemoryFileIndex extends Logging {
missingFiles += f.getPath.toString
None
}
}
}.flatten

if (missingFiles.nonEmpty) {
logWarning(
Expand Down