[KYUUBI apache#4352] Support System.gc() with periodic GC interval

kyuubi-common/src/main/scala/org/apache/kyuubi/config/KyuubiConf.scala

@@ -2639,4 +2639,11 @@ object KyuubiConf {
       .version("1.7.0")
       .timeConf
       .createWithDefault(Duration.ofSeconds(60).toMillis)
+
+  val PERIODIC_GC_INTERVAL: ConfigEntry[Long] = buildConf("kyuubi.periodicGC.interval")
+    .doc("How often to trigger a garbage collection.")
+    .version("1.7.0")
+    .serverOnly
+    .timeConf
+    .createWithDefaultString("PT30M")
 }

kyuubi-server/src/main/scala/org/apache/kyuubi/server/KyuubiServer.scala

@@ -169,6 +169,9 @@ class KyuubiServer(name: String) extends Serverable(name) {
     val kinit = new KinitAuxiliaryService()
     addService(kinit)
 
+    val periodicGCService = new PeriodicGCService
+    addService(periodicGCService)
+
     if (conf.get(MetricsConf.METRICS_ENABLED)) {
       addService(new MetricsSystem)
     }

kyuubi-server/src/main/scala/org/apache/kyuubi/server/PeriodicGCService.scala

@@ -0,0 +1,45 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *    http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package org.apache.kyuubi.server
+
+import java.util.concurrent.TimeUnit
+
+import org.apache.kyuubi.config.KyuubiConf
+import org.apache.kyuubi.service.AbstractService
+import org.apache.kyuubi.util.ThreadUtils
+
+class PeriodicGCService(name: String) extends AbstractService(name) {
+  def this() = this(classOf[PeriodicGCService].getSimpleName)
+
+  private val gcTrigger = ThreadUtils.newDaemonSingleThreadScheduledExecutor("periodic-gc-trigger")
+
+  override def start(): Unit = {
+    startGcTrigger()
+    super.start()
+  }
+
+  override def stop(): Unit = {
+    super.stop()
+    ThreadUtils.shutdown(gcTrigger)
+  }
+
+  private def startGcTrigger(): Unit = {
+    val interval = conf.get(KyuubiConf.PERIODIC_GC_INTERVAL)
+    gcTrigger.scheduleWithFixedDelay(() => System.gc(), interval, interval, TimeUnit.MILLISECONDS)
+  }
+}