dongjoon-hyun commented on a change in pull request #30483:
URL: https://github.com/apache/spark/pull/30483#discussion_r563212466
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File path:
sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
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@@ -785,6 +785,13 @@ object SQLConf {
.booleanConf
.createWithDefault(false)
+ val PARQUET_META_CACHE_ENABLED =
buildConf("spark.sql.parquet.metadataCache.enabled")
+ .doc("To indicate if enable parquet file meta cache, it is recommended to
enabled " +
+ "this config in long-running process mode, such as Thrift Server,
default is false")
Review comment:
Is this recommendation `true` when the files are updated frequently
(maybe hourly) and Spark accesses the files only once (query daily)?
> it is recommended to enabled this config in long-running process mode,
such as Thrift Server
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