weizhouapache commented on code in PR #8740:
URL: https://github.com/apache/cloudstack/pull/8740#discussion_r1622701710


##########
engine/schema/src/main/java/com/cloud/vm/dao/VmStatsDao.java:
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@@ -75,8 +75,9 @@ public interface VmStatsDao extends GenericDao<VmStatsVO, 
Long> {
     /**
      * Removes (expunges) all VM stats with {@code timestamp} less than
      * a given Date.
-     * @param limit the maximum date to keep stored. Records that exceed this 
limit will be removed.
+     * @param limitDate the maximum date to keep stored. Records that exceed 
this limit will be removed.
+     * @param limitPerQuery the maximum amount of rows to be removed in a 
single query. We loop if there are still rows to be removed after a given query.
      */
-    void removeAllByTimestampLessThan(Date limit);
+    void removeAllByTimestampLessThan(Date limitDate, Long limitPerQuery);

Review Comment:
   Long means it could be null
   Is _long_ better?
   



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