diff --git a/server/src/main/java/com/cloud/api/query/QueryManagerImpl.java b/server/src/main/java/com/cloud/api/query/QueryManagerImpl.java index f4c9b19c192..4063cfe7a18 100644 --- a/server/src/main/java/com/cloud/api/query/QueryManagerImpl.java +++ b/server/src/main/java/com/cloud/api/query/QueryManagerImpl.java @@ -818,8 +818,14 @@ public class QueryManagerImpl extends MutualExclusiveIdsManagerBase implements Q Integer count = eventIdPage.second(); Long[] idArray = eventIdPage.first().toArray(new Long[0]); - if (count == 0) { - return new Pair<>(new ArrayList<>(), count); + /** + * Need to check array empty, because {@link com.cloud.utils.db.GenericDaoBase#searchAndCount(SearchCriteria, Filter, boolean)} + * makes two calls: first to get objects and second to get count. + * List events has start date filter, there is highly possible cause where no objects loaded + * and next millisecond new event added and finally we ended up with count = 1 and no ids. + */ + if (count == 0 || idArray.length < 1) { + count = 0; } List events = _eventJoinDao.searchByIds(idArray); diff --git a/server/src/main/java/com/cloud/event/dao/EventJoinDaoImpl.java b/server/src/main/java/com/cloud/event/dao/EventJoinDaoImpl.java index f51df27a741..b4316051e43 100644 --- a/server/src/main/java/com/cloud/event/dao/EventJoinDaoImpl.java +++ b/server/src/main/java/com/cloud/event/dao/EventJoinDaoImpl.java @@ -131,6 +131,10 @@ public class EventJoinDaoImpl extends GenericDaoBase implemen @Override public List searchByIds(Long... ids) { + // return empty collection if there are no ids. + if (ids.length == 0) { + return List.of(); + } SearchCriteria sc = vrSearch.create(); sc.setParameters("idIN", ids); return searchIncludingRemoved(sc, null, null, false);