PHOENIX-2713 Backward compatibility fails with CNF exception with 4.7 client and server when upgraded from 4.6
diff --git a/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java b/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java
index 72fe43e..4c42cf6 100644
--- a/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java
+++ b/phoenix-core/src/main/java/org/apache/phoenix/query/ConnectionQueryServicesImpl.java
@@ -2380,7 +2380,7 @@
                                     metaConnection = updateSystemCatalogTimestamp(metaConnection, 
                                             MetaDataProtocol.MIN_SYSTEM_TABLE_TIMESTAMP_4_7_0);
                                     ConnectionQueryServicesImpl.this.removeTable(null, PhoenixDatabaseMetaData.SYSTEM_CATALOG_NAME, null, MetaDataProtocol.MIN_SYSTEM_TABLE_TIMESTAMP_4_7_0);
-                                    logger.warn("Update of SYSTEM.CATALOG complete");
+                                    logger.info("Update of SYSTEM.CATALOG complete");
 									clearCache();
                                 }