Adding logic to delete lineage data.

cdap-app-fabric/src/main/java/io/cdap/cdap/internal/app/services/AppFabricServer.java

@@ -83,7 +83,7 @@ public class AppFabricServer extends AbstractIdleService {
   private final ProgramNotificationSubscriberService programNotificationSubscriberService;
   private final ProgramStopSubscriberService programStopSubscriberService;
   private final RunRecordCorrectorService runRecordCorrectorService;
-  private final RunRecordTimeToLiveService runRecordTimeToLiveService;
+  private final RecordTimeToLiveService recordTimeToLiveService;
   private final ProgramRunStatusMonitorService programRunStatusMonitorService;
   private final RunRecordMonitorService runRecordCounterService;
   private final CoreSchedulerService coreSchedulerService;
@@ -131,7 +131,7 @@ public AppFabricServer(CConfiguration cConf, SConfiguration sConf,
       TransactionRunner transactionRunner,
       RunRecordMonitorService runRecordCounterService,
       CommonNettyHttpServiceFactory commonNettyHttpServiceFactory,
-      RunRecordTimeToLiveService runRecordTimeToLiveService,
+      RecordTimeToLiveService recordTimeToLiveService,
       SourceControlOperationRunner sourceControlOperationRunner,
       RepositoryCleanupService repositoryCleanupService,
       OperationNotificationSubscriberService operationNotificationSubscriberService) {
@@ -158,7 +158,7 @@ public AppFabricServer(CConfiguration cConf, SConfiguration sConf,
     this.systemAppManagementService = systemAppManagementService;
     this.transactionRunner = transactionRunner;
     this.runRecordCounterService = runRecordCounterService;
-    this.runRecordTimeToLiveService = runRecordTimeToLiveService;
+    this.recordTimeToLiveService = recordTimeToLiveService;
     this.commonNettyHttpServiceFactory = commonNettyHttpServiceFactory;
     this.sourceControlOperationRunner = sourceControlOperationRunner;
     this.repositoryCleanupService = repositoryCleanupService;
@@ -191,7 +191,7 @@ protected void startUp() throws Exception {
         coreSchedulerService.start(),
         credentialProviderService.start(),
         runRecordCounterService.start(),
-        runRecordTimeToLiveService.start(),
+        recordTimeToLiveService.start(),
         sourceControlOperationRunner.start(),
         repositoryCleanupService.start(),
         operationNotificationSubscriberService.start()
@@ -250,7 +250,7 @@ protected void shutDown() throws Exception {
     programRunStatusMonitorService.stopAndWait();
     provisioningService.stopAndWait();
     runRecordCounterService.stopAndWait();
-    runRecordTimeToLiveService.stopAndWait();
+    recordTimeToLiveService.stopAndWait();
     sourceControlOperationRunner.stopAndWait();
     repositoryCleanupService.stopAndWait();
     credentialProviderService.stopAndWait();

cdap-app-fabric/src/main/java/io/cdap/cdap/internal/app/services/RecordTimeToLiveService.java

@@ -0,0 +1,190 @@
+/*
+ * Copyright © 2023 Cask Data, Inc.
+ *
+ * Licensed 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 io.cdap.cdap.internal.app.services;
+
+import com.google.common.collect.ImmutableList;
+import com.google.common.util.concurrent.AbstractIdleService;
+import com.google.common.util.concurrent.ThreadFactoryBuilder;
+import com.google.inject.Inject;
+import io.cdap.cdap.common.conf.CConfiguration;
+import io.cdap.cdap.common.conf.Constants;
+import io.cdap.cdap.data2.metadata.lineage.LineageTable;
+import io.cdap.cdap.data2.metadata.lineage.field.FieldLineageTable;
+import io.cdap.cdap.internal.app.store.AppMetadataStore;
+import io.cdap.cdap.spi.data.transaction.TransactionException;
+import io.cdap.cdap.spi.data.transaction.TransactionRunner;
+import java.time.Clock;
+import java.time.Duration;
+import java.time.Instant;
+import java.util.List;
+import java.util.concurrent.Executors;
+import java.util.concurrent.ScheduledExecutorService;
+import java.util.concurrent.TimeUnit;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * Service which periodically scans the database tables for records which should be deleted per the
+ * global time to live value.
+ *
+ * <p>Does not run if no TTL is configured or a TTL of 0 is specified.
+ * <p>
+ *    This service would invoke other TTL based clean up services which implement the interface
+ *    {@link CleanupService}. Those services would be called in sequence.
+ * </p>
+ */
+public final class RecordTimeToLiveService extends AbstractIdleService {
+
+  private static final Logger LOG = LoggerFactory.getLogger(RecordTimeToLiveService.class);
+
+  private final TransactionRunner transactionRunner;
+  private final boolean isEnabled;
+  private final Duration ttlMaxAge;
+  private final Duration checkFrequency;
+  private final Duration initialDelay;
+  private final Clock clock;
+
+  private ScheduledExecutorService service;
+  private List<CleanupService> cleanupServiceList;
+
+  @Inject
+  RecordTimeToLiveService(CConfiguration cConf, TransactionRunner transactionRunner) {
+    // Negative TTLs do not make sense, treat as 0.
+    this.ttlMaxAge =
+        Duration.ofDays(Math.max(cConf.getInt(Constants.AppFabric.RUN_DATA_CLEANUP_TTL_DAYS), 0));
+    this.isEnabled = !this.ttlMaxAge.isZero();
+    // Delay should be at least 1 hour to ensure it isn't infinitely running.
+    this.checkFrequency =
+        Duration.ofHours(
+            Math.max(cConf.getInt(Constants.AppFabric.RUN_DATA_CLEANUP_TTL_FREQUENCY_HOURS), 1));
+    // Negative delays do not make sense, treat as 0.
+    this.initialDelay =
+        Duration.ofMinutes(
+            Math.max(
+                cConf.getInt(Constants.AppFabric.RUN_DATA_CLEANUP_TTL_INITIAL_DELAY_MINUTES), 0));
+
+    this.transactionRunner = transactionRunner;
+    this.clock = Clock.systemUTC();
+    this.cleanupServiceList = ImmutableList.of(
+        new RunRecordsCleanupService(),
+        new LineageCleanupService(),
+        new FieldLineageCleanupService());
+  }
+
+  @Override
+  protected void startUp() {
+    if (!isEnabled) {
+      LOG.info("No TTL configured, skipping starting RecordTimeToLiveService");
+      return;
+    }
+
+    service =
+        Executors.newSingleThreadScheduledExecutor(
+            new ThreadFactoryBuilder().setNameFormat("Records TTL janitor").build());
+
+    service.scheduleAtFixedRate(
+        () -> doCleanup(),
+        initialDelay.getSeconds(),
+        checkFrequency.getSeconds(),
+        TimeUnit.SECONDS);
+  }
+
+  @Override
+  protected void shutDown() {
+    if (!isEnabled) {
+      // no-op because no services were started.
+      return;
+    }
+    LOG.info("Stopping RecordTimeToLiveService");
+
+    service.shutdownNow();
+  }
+
+  private void doCleanup() {
+    Instant endDate = Instant.now(clock).minus(ttlMaxAge);
+    // Perform cleanup together for all services with a fixed end time. This is currently a
+    // sequential call and may be executed parallelly in future if required.
+    this.cleanupServiceList.forEach(service -> {
+      long startTime = System.currentTimeMillis();
+      service.doCleanup(endDate);
+      LOG.info("{} cleanup completed in {} seconds",service.getClass().getName(),(System.currentTimeMillis()-startTime)/1000.0);
+    });
+  }
+
+  private interface CleanupService {
+
+    void doCleanup(Instant endDate);
+  }
+
+  private class RunRecordsCleanupService implements CleanupService {
+
+    @Override
+    public void doCleanup(Instant endDate) {
+      LOG.info("Doing scheduled cleanup, deleting all run records before {}", endDate);
+
+      try {
+        transactionRunner.run(
+            context -> {
+              AppMetadataStore appMetadataStore = AppMetadataStore.create(context);
+
+              appMetadataStore.deleteCompletedRunsStartedBefore(endDate);
+            });
+      } catch (TransactionException e) {
+        LOG.error("Failed to clean up old run records", e);
+      }
+    }
+  }
+
+  private class LineageCleanupService implements CleanupService {
+
+    @Override
+    public void doCleanup(Instant endDate) {
+      LOG.info("Doing scheduled cleanup, deleting all run lineage records before {}", endDate);
+
+      try {
+        transactionRunner.run(
+            context -> {
+              LineageTable lineageTable = LineageTable.create(context);
+
+              lineageTable.deleteCompletedLineageRecordsStartedBefore(endDate);
+            });
+      } catch (TransactionException e) {
+        LOG.error("Failed to clean up old lineage records", e);
+      }
+    }
+  }
+
+
+  private class FieldLineageCleanupService implements CleanupService {
+
+    @Override
+    public void doCleanup(Instant endDate) {
+      LOG.info("Doing scheduled cleanup, deleting all field lineage records before {}", endDate);
+
+      try {
+        transactionRunner.run(
+            context -> {
+              FieldLineageTable fieldLineageTable = FieldLineageTable.create(context);
+
+              fieldLineageTable.deleteFieldRecordsBefore(endDate);
+            });
+      } catch (TransactionException e) {
+        LOG.error("Failed to clean up old field lineage records", e);
+      }
+    }
+  }
+}