fixes #5282 only do txn related operations if a txn exists. note that the ydb...

fixes #5282 only do txn related operations if a txn exists. note that the ydb layer properly handles change descriptor in a txnless environment.


git-svn-id: file:///svn/toku/tokudb@45958 c7de825b-a66e-492c-adef-691d508d4ae1

ft/ft-ops.cc

@@ -3085,13 +3085,12 @@ toku_ft_change_descriptor(
 {
     int r = 0;
     DESCRIPTOR_S new_d;
+
+    // if running with txns, save to rollback + write to recovery log
+    if (txn) {
+        // put information into rollback file
         BYTESTRING old_desc_bs = { old_descriptor->size, (char *) old_descriptor->data };
         BYTESTRING new_desc_bs = { new_descriptor->size, (char *) new_descriptor->data };
-    if (!txn) {
-        r = EINVAL;
-        goto cleanup;
-    }
-    // put information into rollback file
         r = toku_logger_save_rollback_change_fdescriptor(
             txn,
             toku_cachefile_filenum(ft_h->ft->cf),
@@ -3114,6 +3113,7 @@ toku_ft_change_descriptor(
                 );
             if (r != 0) { goto cleanup; }
         }
+    }
 
     // write new_descriptor to header
     new_d.dbt = *new_descriptor;