galera mtr suite: fixes for unstable tests

mysql-test/suite/galera/t/MW-329.test

@@ -87,7 +87,7 @@ while ($count)
 --enable_query_log
 
 --connection node_1b
---error 0,2013,1317,2026
+--error 0,1317,2013,2026
 --reap
 --enable_query_log
 --enable_result_log

mysql-test/suite/galera/t/galera_as_slave.test

@@ -55,7 +55,6 @@ INSERT INTO t1 VALUES (4,1);
 --connection node_3
 DROP TABLE t1;
 
-
 --connection node_2
 --let $wait_condition = SELECT COUNT(*) = 0 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_NAME = 't1';
 --source include/wait_condition.inc

mysql-test/suite/galera/t/galera_bf_kill_debug.test

@@ -131,7 +131,7 @@ SET DEBUG_SYNC = "now WAIT_FOR bwoc_reached";
 SET DEBUG_SYNC = "now SIGNAL bwoc_continue";
 SET DEBUG_SYNC='RESET';
 --connection node_2a
---error 0,1213
+--error 0,1213,2013,2026
 --reap
 
 --connection node_2

mysql-test/suite/galera/t/galera_parallel_simple.test

@@ -51,7 +51,7 @@ SET SESSION wsrep_sync_wait = 0;
 --let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE LIKE 'Waiting for table metadata lock%';
 --source include/wait_condition.inc
 
---let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE STATE LIKE 'Commit';
+--let $wait_condition = SELECT COUNT(*) = 1 FROM INFORMATION_SCHEMA.PROCESSLIST WHERE (STATE LIKE 'Commit' or STATE = 'Waiting for certification');
 --source include/wait_condition.inc
 
 UNLOCK TABLES;

mysql-test/suite/galera/t/galera_sst_mariabackup.cnf

@@ -14,7 +14,7 @@ innodb_undo_tablespaces=0
 wsrep_provider_options='base_port=@mysqld.2.#galera_port;gcache.size=1;pc.ignore_sb=true'
 innodb_fast_shutdown=0
 innodb_undo_tablespaces=3
-innodb_log_file_buffering
+loose_innodb_log_file_buffering
 
 [sst]
 transferfmt=@ENV.MTR_GALERA_TFMT

mysql-test/suite/galera/t/galera_var_reject_queries.test

@@ -5,10 +5,6 @@
 --source include/galera_cluster.inc
 --source include/have_innodb.inc
 
-if (`select version() not like '10.10.3-%'`) {
-  skip disabled until new C/C;
-}
-
 CREATE TABLE t1 (f1 INTEGER NOT NULL PRIMARY KEY) engine=innodb;
 
 --connect node_1a, 127.0.0.1, root, , test, $NODE_MYPORT_1
@@ -26,7 +22,7 @@ SELECT * FROM t1;
 # Original behavior was lost connection,
 # but since 10.1, we allow controlling connection to remain alive
 #
---error 0,2013
+--error 0,2013,2026
 SET GLOBAL wsrep_reject_queries = ALL_KILL;
 
 --connection node_1a

mysql-test/suite/galera/t/rpl_galera_to_mariadb_clone_slave_using_mariadb-backup.cnf

 !include ../galera_2nodes_as_master.cnf
 
 [mysqld.1]
-innodb-log-file-buffering
+loose-innodb-log-file-buffering
 
 [mysqld.2]
-innodb-log-file-buffering
+loose-innodb-log-file-buffering
 
 [mysqld.3]
-innodb-log-file-buffering
+loose-innodb-log-file-buffering

mysql-test/suite/galera_sr/r/galera_sr_cc_master.result

@@ -27,7 +27,7 @@ SET GLOBAL wsrep_cluster_address = '';
 SET SESSION wsrep_sync_wait = DEFAULT;
 connection node_2;
 INSERT INTO t1 VALUES (6);
-ERROR HY000: Lost connection to server during query
+Got one of the listed errors
 connection node_1;
 SELECT COUNT(*) AS EXPECT_0 FROM mysql.wsrep_streaming_log;
 EXPECT_0

mysql-test/suite/galera_sr/t/galera_sr_cc_master.test

 --source include/galera_cluster.inc
 --source include/have_innodb.inc
 
-if (`select version() not like '10.10.3-%'`) {
-  skip disabled until new C/C;
-}
-
 #
 # Test the effect of Cluster Configuration Change on a concurrently-running SR transaction
 # We use SET GLOBAL wsrep_cluster_address = '' to cause the master (node_2) to temporarily
@@ -55,7 +51,7 @@ SET GLOBAL wsrep_cluster_address = '';
 SET SESSION wsrep_sync_wait = DEFAULT;
 
 --connection node_2
---error 2013 # CR_SERVER_LOST
+--error 2013,2026
 INSERT INTO t1 VALUES (6);
 
 --connection node_1