Test by reverting MDEV-16656: DROP DATABASE crashes the Galera Cluster

mysql-test/suite/galera/disabled.def

@@ -33,4 +33,5 @@ galera_gc_fc_limit : MDEV-17061 Test failure on galera.galera_gc_fc_limit
 partition : MDEV-13881 galera.partition failed in buildbot with wrong result
 galera_as_slave_replication_budle : MDEV-15785 Test case galera_as_slave_replication_bundle caused debug assertion
 galera_wan : MDEV-17259: Test failure on galera.galera_wan
-#galera_pc_ignore_sb : MDEV-17357 Test failure on galera.galera_pc_ignore_sb
+galera_pc_ignore_sb : MDEV-17357 Test failure on galera.galera_pc_ignore_sb
+galera_drop_database : test

storage/innobase/fts/fts0fts.cc

@@ -2762,7 +2762,7 @@ fts_cmp_set_sync_doc_id(
 	mutex_enter(&cache->doc_id_lock);
 	/* For each sync operation, we will add next_doc_id by 1,
 	so to mark a sync operation */
-	if (cache->next_doc_id <= cache->synced_doc_id) {
+	if (cache->next_doc_id < cache->synced_doc_id + 1) {
 		cache->next_doc_id = cache->synced_doc_id + 1;
 	}
 	mutex_exit(&cache->doc_id_lock);
@@ -6665,6 +6665,7 @@ fts_rename_aux_tables_to_hex_format(
 			"All the fts index associated with the table are "
 			"marked as corrupted. Please rebuild the "
 			"index again.", parent_table->name);
+		fts_sql_rollback(trx_rename);
 
 		/* Corrupting the fts index related to parent table. */
 		trx_t*	trx_corrupt;
@@ -7041,27 +7042,7 @@ fts_check_and_drop_orphaned_tables(
 		/* If the aux table is in decimal format, we should
 		rename it, so push it to aux_tables_to_rename */
 		if (!drop && rename) {
-			/* It is necessary to check that the table with
-			this name is missing in the vector - otherwise it
-			can be renamed twice: */
-			bool	rename_table = true;
-			for (ulint count = 0;
-			     count < ib_vector_size(aux_tables_to_rename);
-			     count++) {
-				fts_aux_table_t*	rename_aux =
-					static_cast<fts_aux_table_t*>(
-					ib_vector_get(aux_tables_to_rename,
-						      count));
-					if (strcmp(rename_aux->name,
-						   aux_table->name) == 0) {
-						rename_table = false;
-						break;
-					}
-			}
-			if (rename_table) {
-				ib_vector_push(aux_tables_to_rename,
-					       aux_table);
-			}
+			ib_vector_push(aux_tables_to_rename, aux_table);
 		}
 
 		if (i + 1 < ib_vector_size(tables)) {

storage/xtradb/fts/fts0fts.cc

@@ -2761,7 +2761,7 @@ fts_cmp_set_sync_doc_id(
 	mutex_enter(&cache->doc_id_lock);
 	/* For each sync operation, we will add next_doc_id by 1,
 	so to mark a sync operation */
-	if (cache->next_doc_id <= cache->synced_doc_id) {
+	if (cache->next_doc_id < cache->synced_doc_id + 1) {
 		cache->next_doc_id = cache->synced_doc_id + 1;
 	}
 	mutex_exit(&cache->doc_id_lock);
@@ -6664,6 +6664,7 @@ fts_rename_aux_tables_to_hex_format(
 			"All the fts index associated with the table are "
 			"marked as corrupted. Please rebuild the "
 			"index again.", parent_table->name);
+		fts_sql_rollback(trx_rename);
 
 		/* Corrupting the fts index related to parent table. */
 		trx_t*	trx_corrupt;
@@ -7040,27 +7041,7 @@ fts_check_and_drop_orphaned_tables(
 		/* If the aux table is in decimal format, we should
 		rename it, so push it to aux_tables_to_rename */
 		if (!drop && rename) {
-			/* It is necessary to check that the table with
-			this name is missing in the vector - otherwise it
-			can be renamed twice: */
-			bool	rename_table = true;
-			for (ulint count = 0;
-			     count < ib_vector_size(aux_tables_to_rename);
-			     count++) {
-				fts_aux_table_t*	rename_aux =
-					static_cast<fts_aux_table_t*>(
-					ib_vector_get(aux_tables_to_rename,
-						      count));
-					if (strcmp(rename_aux->name,
-						   aux_table->name) == 0) {
-						rename_table = false;
-						break;
-					}
-			}
-			if (rename_table) {
-				ib_vector_push(aux_tables_to_rename,
-					       aux_table);
-			}
+			ib_vector_push(aux_tables_to_rename, aux_table);
 		}
 
 		if (i + 1 < ib_vector_size(tables)) {