server: fix vm_stats records are not removed if batchsize is 0

engine/schema/src/main/java/com/cloud/storage/dao/VolumeStatsDaoImpl.java

@@ -126,14 +126,7 @@
 
         logger.debug(String.format("Starting to remove all volume_stats rows older than [%s].", limitDate));
 
-        long totalRemoved = 0;
-        long removed;
-
-        do {
-            removed = expunge(sc, limitPerQuery);
-            totalRemoved += removed;
-            logger.trace(String.format("Removed [%s] volume_stats rows on the last update and a sum of [%s] volume_stats rows older than [%s] until now.", removed, totalRemoved, limitDate));
-        } while (limitPerQuery > 0 && removed >= limitPerQuery);
+        long totalRemoved = batchExpunge(sc, limitPerQuery);
 
         logger.info(String.format("Removed a total of [%s] volume_stats rows older than [%s].", totalRemoved, limitDate));
     }

engine/schema/src/main/java/com/cloud/vm/dao/VmStatsDaoImpl.java

@@ -123,14 +123,7 @@
 
         logger.debug(String.format("Starting to remove all vm_stats rows older than [%s].", limitDate));
 
-        long totalRemoved = 0;
-        long removed;
-
-        do {
-            removed = expunge(sc, limitPerQuery);
-            totalRemoved += removed;
-            logger.trace(String.format("Removed [%s] vm_stats rows on the last update and a sum of [%s] vm_stats rows older than [%s] until now.", removed, totalRemoved, limitDate));
-        } while (limitPerQuery > 0 && removed >= limitPerQuery);
+        long totalRemoved = batchExpunge(sc, limitPerQuery);
 
         logger.info(String.format("Removed a total of [%s] vm_stats rows older than [%s].", totalRemoved, limitDate));
     }

framework/db/src/main/java/com/cloud/utils/db/GenericDao.java

@@ -247,14 +247,6 @@ public interface GenericDao<T, ID extends Serializable> {
 
     int expungeList(List<ID> ids);
 
-    /**
-     * Delete the entity beans specified by the search criteria with a given limit
-     * @param sc Search criteria
-     * @param limit Maximum number of rows that will be affected
-     * @return Number of rows deleted
-     */
-    int expunge(SearchCriteria<T> sc, long limit);
-
     /**
      * expunge the removed rows.
      */

framework/db/src/main/java/com/cloud/utils/db/GenericDaoBase.java

@@ -1244,13 +1244,6 @@ public boolean expunge(final ID id) {
         }
     }
 
-    // FIXME: Does not work for joins.
-    @Override
-    public int expunge(final SearchCriteria<T> sc, long limit) {
-        Filter filter = new Filter(limit);
-        return expunge(sc, filter);
-    }
-
     @Override
     public int expunge(final SearchCriteria<T> sc, final Filter filter) {
         if (sc == null) {

server/src/test/java/com/cloud/user/MockUsageEventDao.java

@@ -210,11 +210,6 @@ public int expunge(SearchCriteria<UsageEventVO> sc) {
         return 0;
     }
 
-    @Override
-    public int expunge(SearchCriteria<UsageEventVO> sc, long limit) {
-        return 0;
-    }
-
     @Override
     public void expunge() {