Add retry for building index

deps/oblib/src/lib/utility/ob_tracepoint.h

@@ -501,6 +501,11 @@ public:
     EN_CLOG_ILOG_MEMSTORE_ALLOC_MEMORY_FAILURE = 268,
     EN_PREVENT_SYNC_REPORT = 360,
     EN_PREVENT_ASYNC_REPORT = 361,
+
+    // DDL related 500-550
+    EN_SUBMIT_INDEX_TASK_ERROR_BEFORE_STAT_RECORD = 503,
+    EN_SUBMIT_INDEX_TASK_ERROR_AFTER_STAT_RECORD = 504,
+
     EVENT_TABLE_MAX = SIZE_OF_EVENT_TABLE
   };