Server fails to set ADD_PK_INDEX, DROP_PK_INDEX if unique index nominated as PK

GIT: HEAD -> 10.3, origin/HEAD, origin/10.3 fbee31418cf08c62d91195b04a9ed6a42c31bcec

        2018-10-04T11:26:42-04:00

Version: '10.3.11-MariaDB-debug-log'  

(/work_m/RQG_new/storage/1538676565/867.*)

mysqld: storage/innobase/row/row0log.cc:681: void row_log_table_delete(const rec_t*, dict_index_t*, const ulint*, const byte*): Assertion `new_index->n_uniq == index->n_uniq' failed.

Query (0x7f4af8012af0): ROLLBACK  /* E_R Thread10 QNO 1965 CON_ID 703 */

Status: NOT_KILLED

#3  <signal handler called>

#4  __GI_raise (sig=sig@entry=6)

    at ../sysdeps/unix/sysv/linux/raise.c:58

#5  0x00007f4b8fa4637a in __GI_abort () 

    at abort.c:89

#6  0x00007f4b8fa3cb47 in __assert_fail_base (fmt=<optimized out>, assertion=assertion@entry=0x5596740bc508 "new_index->n_uniq == index->n_uniq", file=file@entry=0x5596740bc088 "storage/innobase/row/row0log.cc", line=line@entry=681, function=function@entry=0x5596740be4c0 <row_log_table_delete(unsigned char const*, dict_index_t*, unsigned long const*, unsigned char const*)::__PRETTY_FUNCTION__> "void row_log_table_delete(const rec_t*, dict_index_t*, const ulint*, const byte*)") 

    at assert.c:92

#7  0x00007f4b8fa3cbf2 in __GI___assert_fail (assertion=0x5596740bc508 "new_index->n_uniq == index->n_uniq", file=0x5596740bc088 "storage/innobase/row/row0log.cc", line=681, function=0x5596740be4c0 <row_log_table_delete(unsigned char const*, dict_index_t*, unsigned long const*, unsigned char const*)::__PRETTY_FUNCTION__> "void row_log_table_delete(const rec_t*, dict_index_t*, const ulint*, const byte*)") 

    at assert.c:101

#8  0x0000559673947150 in row_log_table_delete (rec=0x7f4b750c4189 "\200", index=0x7f4aa00c3ca8, offsets=0x7f4af80b30e8, sys=0x0) 

    at storage/innobase/row/row0log.cc:681

#9  0x0000559673b8986b in row_undo_ins_remove_clust_rec (node=0x7f4af80ab0e8) 

    at storage/innobase/row/row0uins.cc:120

#10 0x0000559673b8afd8 in row_undo_ins (node=0x7f4af80ab0e8, thr=0x7f4af80aaf18) 

    at storage/innobase/row/row0uins.cc:612

#11 0x0000559673989447 in row_undo (node=0x7f4af80ab0e8, thr=0x7f4af80aaf18) 

    at storage/innobase/row/row0undo.cc:303

#12 0x00005596739896a8 in row_undo_step (thr=0x7f4af80aaf18) 

    at storage/innobase/row/row0undo.cc:362

#13 0x00005596738ddbf1 in que_thr_step (thr=0x7f4af80aaf18) 

    at storage/innobase/que/que0que.cc:1044

#14 0x00005596738dde45 in que_run_threads_low (thr=0x7f4af80aaf18) 

    at storage/innobase/que/que0que.cc:1108

#15 0x00005596738de039 in que_run_threads (thr=0x7f4af80aaf18) 

    at storage/innobase/que/que0que.cc:1148

#16 0x00005596739ea98a in trx_rollback_to_savepoint_low (trx=0x7f4b7e3afb10, savept=0x0) 

    at storage/innobase/trx/trx0roll.cc:145

#17 0x00005596739ead7a in trx_rollback_for_mysql_low (trx=0x7f4b7e3afb10) 

    at storage/innobase/trx/trx0roll.cc:214

#18 0x00005596739eb0cd in trx_rollback_for_mysql (trx=0x7f4b7e3afb10) 

    at storage/innobase/trx/trx0roll.cc:240

#19 0x00005596737d2c0b in innobase_rollback (hton=0x5596757c49b8, thd=0x7f4af8000a98, rollback_trx=true) 

    at storage/innobase/handler/ha_innodb.cc:4713

#20 0x00005596735ca522 in ha_rollback_trans (thd=0x7f4af8000a98, all=true) 

    at sql/handler.cc:1722

#21 0x000055967344db6f in trans_rollback (thd=0x7f4af8000a98) 

    at sql/transaction.cc:423

#22 0x00005596732e0e11 in mysql_execute_command (thd=0x7f4af8000a98) 

    at sql/sql_parse.cc:5832

#23 0x00005596732e7a92 in mysql_parse (thd=0x7f4af8000a98, rawbuf=0x7f4af8012af0 "ROLLBACK  /* E_R Thread10 QNO 1965 CON_ID 703 */", length=48, parser_state=0x7f4b7c2c2640, is_com_multi=false, is_next_command=false) 

    at sql/sql_parse.cc:8091

#24 0x00005596732d49e0 in dispatch_command (command=COM_QUERY, thd=0x7f4af8000a98, packet=0x7f4af800a7f9 " ROLLBACK  /* E_R Thread10 QNO 1965 CON_ID 703 */ ", packet_length=50, is_com_multi=false, is_next_command=false) 

    at sql/sql_parse.cc:1850

#25 0x00005596732d343f in do_command (thd=0x7f4af8000a98) 

    at sql/sql_parse.cc:1394

#26 0x000055967343999f in do_handle_one_connection (connect=0x559676378e78) 

    at sql/sql_connect.cc:1402

#27 0x0000559673439716 in handle_one_connection (arg=0x559676378e78) 

    at sql/sql_connect.cc:1308

#28 0x00007f4b906856da in start_thread (arg=0x7f4b7c2c3700) 

    at pthread_create.c:456

#29 0x00007f4b8fb17d7f in clone () 

    at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

RQG setup (some of the settings are RQG run specific)

/mnt/r0/mleich/RQG_new/rqg.pl \ 

--mysqld=--innodb_lock_schedule_algorithm=fcfs \ 

--grammar=conf/mariadb/table_stress.yy \ 

--gendata=conf/mariadb/table_stress.zz \ 

--gendata_sql=conf/mariadb/table_stress.sql \ 

--engine=Innodb \ 

--reporters=Deadlock,ErrorLog,Backtrace \ 

--mysqld=--loose_innodb_use_native_aio=0 \ 

--mysqld=--connect_timeout=60 \ 

--mysqld=--net_read_timeout=30 \ 

--mysqld=--net_write_timeout=60 \ 

--mysqld=--loose-idle_readonly_transaction_timeout=0 \ 

--mysqld=--loose-idle_transaction_timeout=0 \ 

--mysqld=--loose-idle_write_transaction_timeout=0 \ 

--mysqld=--interactive_timeout=28800 \ 

--mysqld=--lock_wait_timeout=86400 \ 

--mysqld=--innodb-lock-wait-timeout=50 \ 

--mysqld=--loose-table_lock_wait_timeout=50 \ 

--mysqld=--wait_timeout=28800 \ 

--mysqld=--slave_net_timeout=60 \ 

--mysqld=--log-output=none \ 

--duration=300 \ 

--seed=random \ 

--sqltrace=MarkErrors \ 

--threads=32 \ 

--mysqld=--innodb-flush-log-at-trx-commit=0 \ 

--mysqld=--transaction-isolation=READ-COMMITTED \ 

... (some RQG run specific settings like workdir etc.)

--no-mask

The RQG testing "campaign" consisted of 1120 RQG runs.

There was some variation of the parameters

- "--mysqld=--transaction-isolation"

- "--threads"

- "--mysqld=--innodb-flush-log-at-trx-commit=0".

56 RQG runs hit an assert and 27 of them the assert reported here.

I will try to simplify the RQG grammar.