[GitHub] [spark] viirya commented on a change in pull request #24585: [Spark-27664][CORE] Performance issue while listing large number of files on an object store.

[GitBox <gi...@apache.org>]

viirya commented on a change in pull request #24585: [Spark-27664][CORE] Performance issue while listing large number of files on an object store.
URL: https://github.com/apache/spark/pull/24585#discussion_r283116822
 
 

 ##########
 File path: sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala
 ##########
 @@ -585,6 +585,17 @@ object SQLConf {
       .longConf
       .createWithDefault(250 * 1024 * 1024)
 
+  val HIVE_FILESOURCE_FILE_CACHE_CONCURRENCY_LEVEL =
+    buildConf("spark.sql.hive.filesourceFileCacheConcurrencyLevel")
+      .doc("Provide concurrency level for underlying guava cache. The default is 1." +
+        " Higher value may give better performance, when the number of " +
 
 Review comment:
   As it is set with default 1, `Higher value may give better performance` sounds like we set it to lowest performance.  

----------------------------------------------------------------
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
 
For queries about this service, please contact Infrastructure at:
users@infra.apache.org


With regards,
Apache Git Services

---------------------------------------------------------------------
To unsubscribe, e-mail: reviews-unsubscribe@spark.apache.org
For additional commands, e-mail: reviews-help@spark.apache.org