diff --git a/.idea/inspectionProfiles/Druid.xml b/.idea/inspectionProfiles/Druid.xml
index 67d3b7425c9..491f7affa0a 100644
--- a/.idea/inspectionProfiles/Druid.xml
+++ b/.idea/inspectionProfiles/Druid.xml
@@ -367,6 +367,11 @@
         <constraint name="l" within="" contains="" />
         <constraint name="y" minCount="0" maxCount="2147483647" within="" contains="" />
       </searchConfiguration>
+      <searchConfiguration name="Create a simple ExecutorService (not scheduled)" text="$x$ = $y$;" recursive="true" caseInsensitive="true" type="JAVA" pattern_context="default">
+        <constraint name="__context__" within="" contains="" />
+        <constraint name="x" nameOfExprType="java\.util\.concurrent\.ExecutorService" expressionTypes="java.util.concurrent.ExecutorService" within="" contains="" />
+        <constraint name="y" nameOfExprType="java\.util\.concurrent\.ScheduledExecutorService" expressionTypes="java.util.concurrent.ScheduledExecutorService" exprTypeWithinHierarchy="true" within="" contains="" />
+      </searchConfiguration>
     </inspection_tool>
     <inspection_tool class="SimplifyStreamApiCallChains" enabled="true" level="ERROR" enabled_by_default="true" />
     <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
diff --git a/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/CommonCacheNotifier.java b/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/CommonCacheNotifier.java
index 036c5bc61ea..608beb1ea20 100644
--- a/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/CommonCacheNotifier.java
+++ b/extensions-core/druid-basic-security/src/main/java/org/apache/druid/security/basic/CommonCacheNotifier.java
@@ -88,7 +88,7 @@ public class CommonCacheNotifier
       String callerName
   )
   {
-    this.exec = Execs.scheduledSingleThreaded(StringUtils.format("%s-notifierThread-", callerName) + "%d");
+    this.exec = Execs.singleThreaded(StringUtils.format("%s-notifierThread-", callerName) + "%d");
     this.callerName = callerName;
     this.updateQueue = new LinkedBlockingQueue<>();
     this.itemConfigMap = itemConfigMap;
diff --git a/sql/src/main/java/org/apache/druid/sql/calcite/schema/DruidSchema.java b/sql/src/main/java/org/apache/druid/sql/calcite/schema/DruidSchema.java
index 860084f2aba..a0733269128 100644
--- a/sql/src/main/java/org/apache/druid/sql/calcite/schema/DruidSchema.java
+++ b/sql/src/main/java/org/apache/druid/sql/calcite/schema/DruidSchema.java
@@ -41,7 +41,6 @@ import org.apache.druid.java.util.common.DateTimes;
 import org.apache.druid.java.util.common.ISE;
 import org.apache.druid.java.util.common.StringUtils;
 import org.apache.druid.java.util.common.concurrent.Execs;
-import org.apache.druid.java.util.common.concurrent.ScheduledExecutors;
 import org.apache.druid.java.util.common.guava.Sequence;
 import org.apache.druid.java.util.common.guava.Yielder;
 import org.apache.druid.java.util.common.guava.Yielders;
@@ -147,7 +146,7 @@ public class DruidSchema extends AbstractSchema
     Preconditions.checkNotNull(serverView, "serverView");
     this.config = Preconditions.checkNotNull(config, "config");
     this.viewManager = Preconditions.checkNotNull(viewManager, "viewManager");
-    this.cacheExec = ScheduledExecutors.fixed(1, "DruidSchema-Cache-%d");
+    this.cacheExec = Execs.singleThreaded("DruidSchema-Cache-%d");
     this.tables = new ConcurrentHashMap<>();
     this.escalator = escalator;