fix mismatching between db uuids and custom attributes uuids

engine/schema/src/main/java/com/cloud/upgrade/dao/Upgrade41520to41600.java

@@ -34,6 +34,7 @@
 
 import com.cloud.utils.exception.CloudRuntimeException;
 
+
 public class Upgrade41520to41600 implements DbUpgrade, DbUpgradeSystemVmTemplate {
 
     final static Logger LOG = Logger.getLogger(Upgrade41520to41600.class);

engine/schema/src/main/java/com/cloud/upgrade/dao/Upgrade41610to41700.java

@@ -21,7 +21,12 @@
 import org.apache.log4j.Logger;
 
 import java.io.InputStream;
+import java.math.BigInteger;
 import java.sql.Connection;
+import java.sql.PreparedStatement;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.util.UUID;
 
 public class Upgrade41610to41700 implements DbUpgrade, DbUpgradeSystemVmTemplate {
 
@@ -56,6 +61,7 @@ public InputStream[] getPrepareScripts() {
 
     @Override
     public void performDataMigration(Connection conn) {
+        fixWrongPoolUuid(conn);
     }
 
     @Override
@@ -83,4 +89,26 @@ public void updateSystemVmTemplates(Connection conn) {
             throw new CloudRuntimeException("Failed to find / register SystemVM template(s)");
         }
     }
+
+    public void fixWrongPoolUuid(Connection conn) {
+        LOG.debug("Replacement of faulty pool uuids");
+        try (PreparedStatement pstmt = conn.prepareStatement("SELECT id,uuid FROM storage_pool "
+                + "WHERE uuid NOT LIKE \"%-%-%-%\" AND removed IS NULL;"); ResultSet rs = pstmt.executeQuery()) {
+            PreparedStatement updateStmt = conn.prepareStatement("update storage_pool set uuid = ? where id = ?");
+            while (rs.next()) {
+                    UUID poolUuid = new UUID(
+                            new BigInteger(rs.getString(2).substring(0, 16), 16).longValue(),
+                            new BigInteger(rs.getString(2).substring(16), 16).longValue()
+                    );
+                    updateStmt.setLong(2, rs.getLong(1));
+                    updateStmt.setString(1, poolUuid.toString());
+                    updateStmt.addBatch();
+            }
+            updateStmt.executeBatch();
+        } catch (SQLException ex) {
+            String errorMsg = "fixWrongPoolUuid:Exception while updating faulty pool uuids";
+            LOG.error(errorMsg,ex);
+            throw new CloudRuntimeException(errorMsg, ex);
+        }
+    }
 }

server/src/main/java/com/cloud/storage/StorageManagerImpl.java

@@ -230,6 +230,8 @@
 import com.cloud.vm.VMInstanceVO;
 import com.cloud.vm.VirtualMachine.State;
 import com.cloud.vm.dao.VMInstanceDao;
+import java.math.BigInteger;
+import java.util.UUID;
 
 @Component
 public class StorageManagerImpl extends ManagerBase implements StorageManager, ClusterManagerListener, Configurable {
@@ -1798,7 +1800,7 @@ public void syncDatastoreClusterStoragePool(long datastoreClusterPoolId, List<Mo
 
         for (ModifyStoragePoolAnswer childDataStoreAnswer : childDatastoreAnswerList) {
             StoragePoolInfo childStoragePoolInfo = childDataStoreAnswer.getPoolInfo();
-            StoragePoolVO dataStoreVO = _storagePoolDao.findPoolByUUID(childStoragePoolInfo.getUuid());
+            StoragePoolVO dataStoreVO = getExistingPoolByUuid(childStoragePoolInfo.getUuid());
             if (dataStoreVO == null && childDataStoreAnswer.getPoolType().equalsIgnoreCase("NFS")) {
                 List<StoragePoolVO> nfsStoragePools = _storagePoolDao.findPoolsByStorageType(StoragePoolType.NetworkFilesystem.toString());
                 for (StoragePoolVO storagePool : nfsStoragePools) {
@@ -1844,6 +1846,17 @@ public void syncDatastoreClusterStoragePool(long datastoreClusterPoolId, List<Mo
         handleRemoveChildStoragePoolFromDatastoreCluster(childDatastoreUUIDs);
     }
 
+    private StoragePoolVO getExistingPoolByUuid(String uuid){
+        if(!uuid.contains("-")){
+            UUID poolUuid = new UUID(
+                new BigInteger(uuid.substring(0, 16), 16).longValue(),
+                new BigInteger(uuid.substring(16), 16).longValue()
+            );
+            uuid = poolUuid.toString();
+        }
+        return _storagePoolDao.findByUuid(uuid);
+    }
+
     private void validateChildDatastoresToBeAddedInUpState(StoragePoolVO datastoreClusterPool, List<ModifyStoragePoolAnswer> childDatastoreAnswerList) {
         for (ModifyStoragePoolAnswer childDataStoreAnswer : childDatastoreAnswerList) {
             StoragePoolInfo childStoragePoolInfo = childDataStoreAnswer.getPoolInfo();