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  1. MariaDB Server
  2. MDEV-23851

Galera assertion at lock0lock.cc line 655 because of BF-BF lock wait

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      • branch : bb-10.5-release
      • galera.galera_FK_duplicate_client_insert 'innodb' w2 [ retry-fail ]
                Test ended at 2020-09-29 14:21:13
         
        CURRENT_TEST: galera.galera_FK_duplicate_client_insert
        mysqltest: At line 101: query 'commit' failed with wrong errno 2013: 'Lost connection to MySQL server during query', instead of 0...
         
        The result from queries just before the failure was:
        < snip >
        connection node_1_u;
        commit;
        connection node_1;
        truncate user_session;
        set debug_sync = reset;
        connection node_1_u;
        begin;
        update user set j = j + 1 WHERE id > 0;
        connection node_1_i;
        set debug_sync='lock_wait_suspend_thread_enter SIGNAL ins_waiting WAIT_FOR cont_ins';
        insert into user_session(id,fk1,fk2) values (2, 2, 2);
        connection node_1;
        set debug_sync='now WAIT_FOR ins_waiting';
        connection node_2_i;
        insert into user_session(id,fk1,fk2) values (2, 2, 3);
        connection node_1;
        set debug_sync='now SIGNAL cont_ins';
        connection node_1_i;
        connection node_1_u;
        commit;
         
        More results from queries before failure can be found in /dev/shm/var/2/log/galera_FK_duplicate_client_insert.log
         
         
        Server [mysqld.1 - pid: 6884, winpid: 6884, exit: 256] failed during test run
        Server log from this test:
        ----------SERVER LOG START-----------
        2020-09-29 14:20:57 1 [ERROR] InnoDB: Conflicting lock on table: `test`.`user` index: PRIMARY that has lock 
        RECORD LOCKS space id 35 page no 3 n bits 72 index PRIMARY of table `test`.`user` trx id 369 lock mode S locks rec but not gap
        Record lock, heap no 3 PHYSICAL RECORD: n_fields 4; compact format; info bits 0
         0: len 4; hex 80000002; asc     ;;
         1: len 6; hex 000000000000; asc       ;;
         2: len 7; hex 80000000000000; asc        ;;
         3: len 4; hex 80000000; asc     ;;
         
        2020-09-29 14:20:57 1 [ERROR] InnoDB: WSREP state: 
        2020-09-29 14:20:57 1 [ERROR] WSREP: Thread BF trx_id: 372 thread: 1 seqno: 78 client_state: exec client_mode: high priority transaction_mode: replaying applier: 1 toi: 0 local: 0 query: update user set j = j + 1 WHERE id > 0�Bs_
        2020-09-29 14:20:57 1 [ERROR] WSREP: Thread BF trx_id: 369 thread: 2 seqno: 77 client_state: exec client_mode: high priority transaction_mode: executing applier: 1 toi: 0 local: 0 query: insert into user_session(id,fk1,fk2) values (2, 2, 3)�Bs_
        2020-09-29 14:20:57 0x7fbbf83b1700  InnoDB: Assertion failure in file /home/buildbot/buildbot/padding_for_CPACK_RPM_BUILD_SOURCE_DIRS_PREFIX/mariadb-10.5.6/storage/innobase/lock/lock0lock.cc line 655
        

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              jplindst Jan Lindström (Inactive)
              jplindst Jan Lindström (Inactive)
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