maropu commented on a change in pull request #28852:
URL: https://github.com/apache/spark/pull/28852#discussion_r445894796
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -2656,6 +2656,16 @@ object SQLConf {
.checkValue(_ > 0, "The difference must be positive.")
.createWithDefault(4)
+ val METADATA_CACHE_TTL = buildConf("spark.sql.metadataCacheTTL")
+ .doc("Time-to-live (TTL) value for the metadata caches: partition file
metadata cache and " +
+ "session catalog cache. This configuration only has an effect when
this value having " +
+ "a positive value. It also requires setting `hive` to " +
+ s"${StaticSQLConf.CATALOG_IMPLEMENTATION} to be applied to the
partition file " +
Review comment:
More conditions for this option to be enabled?
https://github.com/apache/spark/blob/master/sql/core/src/main/scala/org/apache/spark/sql/execution/datasources/FileStatusCache.scala#L43-L44
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