Hisoka-X commented on code in PR #42012:
URL: https://github.com/apache/spark/pull/42012#discussion_r1264589292
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sql/catalyst/src/main/scala/org/apache/spark/sql/internal/SQLConf.scala:
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@@ -1852,6 +1852,15 @@ object SQLConf {
.createWithDefault(
"org.apache.spark.sql.execution.streaming.state.HDFSBackedStateStoreProvider")
+ val STATE_STORE_MAINTENANCE_THREADS =
+ buildConf("spark.sql.streaming.stateStore.stateStoreMaintenanceThreads")
+ .internal()
+ .doc("Number of threads in the thread pool that perform clean up and
snapshotting tasks " +
+ "for stateful streaming queries.")
+ .intConf
+ .checkValue(_ >= 0, "Must not be negative")
Review Comment:
The thread number can be zero? Maybe the check should be `_ > 0`
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