MDEV-25731 : Assertion `mode_ == m_local' failed in void...

MDEV-25731 : Assertion `mode_ == m_local' failed in void wsrep::client_state::streaming_params(wsrep::streaming_context::fragment_unit, size_t)

Problem was that if wsrep_load_data_splitting was used
streaming replication (SR) parameters were set
for MyISAM table. Galera does not currently support SR for
MyISAM.

Fix is to ignore wsrep_load_data_splitting setting (with
warning) if table is not InnoDB table.

This is 10.6+ case of fix.
Signed-off-by: Julius Goryavsky <julius.goryavsky@mariadb.com>

mysql-test/suite/galera/r/MDEV-25731.result

@@ -4,9 +4,7 @@ connection node_1;
 SET GLOBAL wsrep_load_data_splitting=ON;
 Warnings:
 Warning	1287	'@@wsrep_load_data_splitting' is deprecated and will be removed in a future release
-SET GLOBAL wsrep_replicate_myisam=ON;
-Warnings:
-Warning	1287	'@@wsrep_replicate_myisam' is deprecated and will be removed in a future release. Please use '@@wsrep_mode=REPLICATE_MYISAM' instead
+SET GLOBAL wsrep_mode=REPLICATE_MYISAM;
 CREATE TABLE t1 (c1 int) ENGINE=MYISAM;
 LOAD DATA INFILE '../../std_data/mdev-25731.dat' IGNORE INTO TABLE t1 LINES TERMINATED BY '\n';
 Warnings:
@@ -19,8 +17,11 @@ SELECT COUNT(*) AS EXPECT_6 FROM t1;
 EXPECT_6
 6
 connection node_1;
-ALTER TABLE t1 ENGINE=InnoDB;
+ALTER TABLE t1 ENGINE=Aria;
+SET GLOBAL wsrep_mode=REPLICATE_ARIA;
 LOAD DATA INFILE '../../std_data/mdev-25731.dat' IGNORE INTO TABLE t1 LINES TERMINATED BY '\n';
+Warnings:
+Warning	1235	wsrep_load_data_splitting for other than InnoDB tables
 SELECT COUNT(*) AS EXPECT_12 FROM t1;
 EXPECT_12
 12
@@ -29,10 +30,18 @@ SELECT COUNT(*) AS EXPECT_12 FROM t1;
 EXPECT_12
 12
 connection node_1;
+ALTER TABLE t1 ENGINE=InnoDB;
+LOAD DATA INFILE '../../std_data/mdev-25731.dat' IGNORE INTO TABLE t1 LINES TERMINATED BY '\n';
+SELECT COUNT(*) AS EXPECT_18 FROM t1;
+EXPECT_18
+18
+connection node_2;
+SELECT COUNT(*) AS EXPECT_18 FROM t1;
+EXPECT_18
+18
+connection node_1;
 DROP TABLE t1;
 SET GLOBAL wsrep_load_data_splitting=OFF;
 Warnings:
 Warning	1287	'@@wsrep_load_data_splitting' is deprecated and will be removed in a future release
-SET GLOBAL wsrep_replicate_myisam=OFF;
-Warnings:
-Warning	1287	'@@wsrep_replicate_myisam' is deprecated and will be removed in a future release. Please use '@@wsrep_mode=REPLICATE_MYISAM' instead
+SET GLOBAL wsrep_mode=DEFAULT;

mysql-test/suite/galera/t/MDEV-25731.test

@@ -3,7 +3,7 @@
 
 --connection node_1
 SET GLOBAL wsrep_load_data_splitting=ON;
-SET GLOBAL wsrep_replicate_myisam=ON;
+SET GLOBAL wsrep_mode=REPLICATE_MYISAM;
 CREATE TABLE t1 (c1 int) ENGINE=MYISAM;
 LOAD DATA INFILE '../../std_data/mdev-25731.dat' IGNORE INTO TABLE t1 LINES TERMINATED BY '\n';
 SELECT COUNT(*) AS EXPECT_6 FROM t1;
@@ -12,7 +12,8 @@ SELECT COUNT(*) AS EXPECT_6 FROM t1;
 SELECT COUNT(*) AS EXPECT_6 FROM t1;
 
 --connection node_1
-ALTER TABLE t1 ENGINE=InnoDB;
+ALTER TABLE t1 ENGINE=Aria;
+SET GLOBAL wsrep_mode=REPLICATE_ARIA;
 LOAD DATA INFILE '../../std_data/mdev-25731.dat' IGNORE INTO TABLE t1 LINES TERMINATED BY '\n';
 SELECT COUNT(*) AS EXPECT_12 FROM t1;
 
@@ -20,8 +21,14 @@ SELECT COUNT(*) AS EXPECT_12 FROM t1;
 SELECT COUNT(*) AS EXPECT_12 FROM t1;
 
 --connection node_1
-DROP TABLE t1;
-SET GLOBAL wsrep_load_data_splitting=OFF;
-SET GLOBAL wsrep_replicate_myisam=OFF;
+ALTER TABLE t1 ENGINE=InnoDB;
+LOAD DATA INFILE '../../std_data/mdev-25731.dat' IGNORE INTO TABLE t1 LINES TERMINATED BY '\n';
+SELECT COUNT(*) AS EXPECT_18 FROM t1;
 
+--connection node_2
+SELECT COUNT(*) AS EXPECT_18 FROM t1;
 
+--connection node_1
+DROP TABLE t1;
+SET GLOBAL wsrep_load_data_splitting=OFF;
+SET GLOBAL wsrep_mode=DEFAULT;