zhli1142015 commented on code in PR #5456:
URL: https://github.com/apache/incubator-gluten/pull/5456#discussion_r1591740360
##########
shims/common/src/main/scala/org/apache/gluten/GlutenConfig.scala:
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@@ -1230,9 +1230,10 @@ object GlutenConfig {
val COLUMNAR_VELOX_CONNECTOR_IO_THREADS =
buildStaticConf("spark.gluten.sql.columnar.backend.velox.IOThreads")
.internal()
- .doc("The IO threads for connector split preloading")
+ .doc("The Size of the IO thread pool in the Connector. This thread pool
is used for split" +
+ " preloading and DirectBufferedInput.")
.intConf
- .createWithDefault(0)
+ .createWithDefaultFunction(() =>
SQLConf.get.getConfString("spark.executor.cores", "1").toInt)
Review Comment:
It's shared by all tasks in one exectuor.
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