Fix DataTTLKeeperTimer's startTimestamp and endTimestamp

apm-collector/apm-collector-storage/collector-storage-es-provider/src/main/java/org/apache/skywalking/apm/collector/storage/es/DataTTLKeeperTimer.java

@@ -19,23 +19,13 @@
 
 package org.apache.skywalking.apm.collector.storage.es;
 
+import org.apache.skywalking.apm.collector.core.module.ModuleManager;
+import org.apache.skywalking.apm.collector.storage.StorageModule;
+import org.apache.skywalking.apm.collector.storage.dao.*;
+
 import java.util.Calendar;
 import java.util.concurrent.Executors;
 import java.util.concurrent.TimeUnit;
-import org.apache.skywalking.apm.collector.storage.dao.IInstanceMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IMemoryPoolMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IServiceReferenceMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.core.module.ModuleManager;
-import org.apache.skywalking.apm.collector.storage.StorageModule;
-import org.apache.skywalking.apm.collector.storage.dao.IApplicationComponentPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IApplicationMappingPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IApplicationReferenceMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.ICpuMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IGCMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IGlobalTracePersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.IMemoryMetricPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.ISegmentCostPersistenceDAO;
-import org.apache.skywalking.apm.collector.storage.dao.ISegmentPersistenceDAO;
 
 /**
  * @author peng-yongsheng
@@ -62,13 +52,14 @@ public class DataTTLKeeperTimer {
     private void delete() {
         Calendar calendar = Calendar.getInstance();
         calendar.setTimeInMillis(System.currentTimeMillis());
-        calendar.set(Calendar.DAY_OF_MONTH, -daysBefore);
+        calendar.add(Calendar.DAY_OF_MONTH, -daysBefore);
         calendar.set(Calendar.HOUR_OF_DAY, 0);
         calendar.set(Calendar.MINUTE, 0);
         calendar.set(Calendar.SECOND, 0);
 
         long startTimestamp = calendar.getTimeInMillis();
 
+        calendar.set(Calendar.HOUR_OF_DAY, 23);
         calendar.set(Calendar.MINUTE, 59);
         calendar.set(Calendar.SECOND, 59);
         long endTimestamp = calendar.getTimeInMillis();