Galera test failure on MTR tests galera.galera_gcache_recover_manytrx and galera_sr.MDEV-27615, galera.galera_gcache_recover_manytrx

==============================================================================

TEST                                      RESULT   TIME (ms) or COMMENT

--------------------------------------------------------------------------

worker[1]  - 'localhost:16000' was not free

worker[1] Using MTR_BUILD_THREAD 301, with reserved ports 16020..16039

galera.galera_gcache_recover_manytrx 'innodb' [ fail ]

        Test ended at 2023-05-17 08:55:09

CURRENT_TEST: galera.galera_gcache_recover_manytrx

mysqltest: At line 146: query 'reap' failed with wrong errno <Unknown> (2026): 'TLS/SSL error: The TLS connection was non-properly terminated.', instead of <Unknown> (2013)...

The result from queries just before the failure was:

< snip >

CALL insert_simple();;

connection node_1_insert_multi;

CALL insert_multi();;

connection node_1_insert_transaction;

CALL insert_transaction ();;

connection node_1_update_simple;

CALL update_simple ();;

connection node_1_insert_1k;

CALL insert_1k ();;

connection node_1_insert_1m;

CALL insert_1m ();;

connection node_1_insert_10m;

CALL insert_10m ();;

connection node_2;

call mtr.add_suppression("Error in Log_event::read_log_event():.*");

SET SESSION wsrep_sync_wait = 0;

Killing server ...

connection node_1;

Killing server ...

connection node_1_insert_simple;

==============================================================================

TEST                                      RESULT   TIME (ms) or COMMENT

--------------------------------------------------------------------------

worker[1]  - 'localhost:16000' was not free

worker[1] Using MTR_BUILD_THREAD 301, with reserved ports 16020..16039

galera_sr.MDEV-27615 'innodb'            [ fail ]

        Test ended at 2023-05-17 09:05:01

CURRENT_TEST: galera_sr.MDEV-27615

mysqltest: At line 47: query 'reap' failed with wrong errno <Unknown> (2026): 'TLS/SSL error: The TLS connection was non-properly terminated.', instead of <Unknown> (2013)...

The result from queries just before the failure was:

connection node_2;

connection node_1;

connection node_1;

connection node_2;

connect node_2a, 127.0.0.1, root, , test, $NODE_MYPORT_2;

connection node_2;

CREATE TABLE t1 (f1 INTEGER PRIMARY KEY) Engine=InnoDB;

SET DEBUG_SYNC='wsrep_before_fragment_certification SIGNAL before_fragment WAIT_FOR continue';

SET SESSION wsrep_trx_fragment_size=1;

START TRANSACTION;

INSERT INTO t1 VALUES (1);;

connection node_2a;

SET SESSION wsrep_sync_wait = 0;

SET DEBUG_SYNC='now WAIT_FOR before_fragment';

SET GLOBAL wsrep_cluster_address = '';

SET DEBUG_SYNC = 'now SIGNAL continue';

connection node_2;