diff options
| -rw-r--r-- | mysql-test/suite/innodb/r/innodb_replace.result | 77 | ||||
| -rw-r--r-- | mysql-test/suite/innodb/t/innodb_replace.test | 186 | ||||
| -rw-r--r-- | sql/sql_insert.cc | 5 | ||||
| -rw-r--r-- | storage/innobase/handler/ha_innodb.cc | 16 | ||||
| -rw-r--r-- | storage/innobase/row/row0ins.c | 8 |
5 files changed, 279 insertions, 13 deletions
diff --git a/mysql-test/suite/innodb/r/innodb_replace.result b/mysql-test/suite/innodb/r/innodb_replace.result new file mode 100644 index 00000000000..30009b8ddc9 --- /dev/null +++ b/mysql-test/suite/innodb/r/innodb_replace.result @@ -0,0 +1,77 @@ +# +#Bug#11759688 52020: InnoDB can still deadlock +#on just INSERT...ON DUPLICATE KEY +#a.k.a. Bug#7975 deadlock without any locking, simple select and update +# +CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL) ENGINE=InnoDB; +INSERT INTO t1 VALUES(3,1); +BEGIN; +SET DEBUG_SYNC='write_row_noreplace SIGNAL insert1 WAIT_FOR select1'; +INSERT INTO t1 VALUES(3,2); +SET DEBUG_SYNC='now WAIT_FOR insert1'; +SELECT * FROM t1 LOCK IN SHARE MODE; +a b +3 1 +SELECT * FROM t1 FOR UPDATE; +SET DEBUG_SYNC='now SIGNAL select1'; +ERROR 23000: Duplicate entry '3' for key 'PRIMARY' +INSERT INTO t1 VALUES(3,3) ON DUPLICATE KEY UPDATE b=b+10; +ERROR 40001: Deadlock found when trying to get lock; try restarting transaction +COMMIT; +SET DEBUG_SYNC='write_row_replace SIGNAL insert2 WAIT_FOR select2'; +REPLACE INTO t1 VALUES(3,4); +SET DEBUG_SYNC='now WAIT_FOR insert2'; +SELECT * FROM t1; +a b +3 11 +SELECT * FROM t1 LOCK IN SHARE MODE; +SET DEBUG_SYNC='now SIGNAL select2'; +SET DEBUG_SYNC='write_row_replace SIGNAL insert3 WAIT_FOR select3'; +INSERT INTO t1 VALUES(3,5) ON DUPLICATE KEY UPDATE b=b+20; +a b +3 4 +SET DEBUG_SYNC='now WAIT_FOR insert3'; +SELECT b FROM t1 LOCK IN SHARE MODE; +SET DEBUG_SYNC='now SIGNAL select3'; +b +24 +SET DEBUG_SYNC='write_row_noreplace SIGNAL insert4 WAIT_FOR select4'; +LOAD DATA INFILE '../../std_data/loaddata5.dat' INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b); +SET DEBUG_SYNC='now WAIT_FOR insert4'; +SELECT b FROM t1 WHERE a=3 LOCK IN SHARE MODE; +b +24 +SELECT b FROM t1 WHERE a=3 FOR UPDATE; +SET DEBUG_SYNC='now SIGNAL select4'; +b +24 +ERROR 23000: Duplicate entry '3' for key 'PRIMARY' +SET DEBUG_SYNC='write_row_noreplace SIGNAL insert5 WAIT_FOR select5'; +LOAD DATA INFILE '../../std_data/loaddata5.dat' IGNORE INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b); +SET DEBUG_SYNC='now WAIT_FOR insert5'; +SELECT * FROM t1; +a b +3 24 +SELECT * FROM t1 WHERE a=3 LOCK IN SHARE MODE; +a b +3 24 +SELECT * FROM t1 WHERE a=3 FOR UPDATE; +SET DEBUG_SYNC='now SIGNAL select5'; +a b +3 24 +SET DEBUG_SYNC='write_row_replace SIGNAL insert6 WAIT_FOR select6'; +LOAD DATA INFILE '../../std_data/loaddata5.dat' REPLACE INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b); +SET DEBUG_SYNC='now WAIT_FOR insert6'; +SELECT * FROM t1; +a b +1 2 +3 24 +5 6 +SELECT a,b FROM t1 LOCK IN SHARE MODE; +SET DEBUG_SYNC='now SIGNAL select6'; +a b +1 2 +3 4 +5 6 +SET DEBUG_SYNC='RESET'; +DROP TABLE t1; diff --git a/mysql-test/suite/innodb/t/innodb_replace.test b/mysql-test/suite/innodb/t/innodb_replace.test new file mode 100644 index 00000000000..a35f423c85e --- /dev/null +++ b/mysql-test/suite/innodb/t/innodb_replace.test @@ -0,0 +1,186 @@ +--source include/have_innodb.inc +--source include/have_debug_sync.inc + +--echo # +--echo #Bug#11759688 52020: InnoDB can still deadlock +--echo #on just INSERT...ON DUPLICATE KEY +--echo #a.k.a. Bug#7975 deadlock without any locking, simple select and update +--echo # + +CREATE TABLE t1 (a INT PRIMARY KEY, b INT NOT NULL) ENGINE=InnoDB; + +INSERT INTO t1 VALUES(3,1); + +connect (con1,localhost,root,,); +connect (con2,localhost,root,,); +connection con1; + +BEGIN; +# normal INSERT of a duplicate should only S-lock the existing record (3,1) +SET DEBUG_SYNC='write_row_noreplace SIGNAL insert1 WAIT_FOR select1'; +--send +INSERT INTO t1 VALUES(3,2); + +connection default; +SET DEBUG_SYNC='now WAIT_FOR insert1'; +# this should S-lock (3,1); no conflict +SELECT * FROM t1 LOCK IN SHARE MODE; +# this should X-lock (3,1), conflicting with con1 +--send +SELECT * FROM t1 FOR UPDATE; + +connection con2; +# Check that the above SELECT is blocked +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = 'Sending data' and + info = 'SELECT * FROM t1 FOR UPDATE'; +--source include/wait_condition.inc +SET DEBUG_SYNC='now SIGNAL select1'; + +connection con1; +--error ER_DUP_ENTRY +reap; +# We are still holding an S-lock on (3,1) after the failed INSERT. +# The following will upgrade it to an X-lock, causing a deadlock. +# InnoDB should resolve the deadlock by aborting the blocked SELECT. +INSERT INTO t1 VALUES(3,3) ON DUPLICATE KEY UPDATE b=b+10; + +connection default; +--error ER_LOCK_DEADLOCK +reap; +connection con1; +COMMIT; + +SET DEBUG_SYNC='write_row_replace SIGNAL insert2 WAIT_FOR select2'; +--send +REPLACE INTO t1 VALUES(3,4); + +connection default; +SET DEBUG_SYNC='now WAIT_FOR insert2'; +SELECT * FROM t1; +--send +SELECT * FROM t1 LOCK IN SHARE MODE; + +connection con2; +# Check that the above SELECT is blocked because of X lock. +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = 'Sending data' and + info = 'SELECT * FROM t1 LOCK IN SHARE MODE'; +--source include/wait_condition.inc +SET DEBUG_SYNC='now SIGNAL select2'; + +connection con1; +reap; + +SET DEBUG_SYNC='write_row_replace SIGNAL insert3 WAIT_FOR select3'; +--send +INSERT INTO t1 VALUES(3,5) ON DUPLICATE KEY UPDATE b=b+20; + +connection default; +reap; +SET DEBUG_SYNC='now WAIT_FOR insert3'; +--send +SELECT b FROM t1 LOCK IN SHARE MODE; + +connection con2; +# Check that the above SELECT is blocked because of X lock. +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = 'Sending data' and + info = 'SELECT b FROM t1 LOCK IN SHARE MODE'; +--source include/wait_condition.inc +SET DEBUG_SYNC='now SIGNAL select3'; + +connection default; +reap; + +connection con1; +reap; +SET DEBUG_SYNC='write_row_noreplace SIGNAL insert4 WAIT_FOR select4'; +--send +LOAD DATA INFILE '../../std_data/loaddata5.dat' INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b); + +connection default; +SET DEBUG_SYNC='now WAIT_FOR insert4'; +# this should S-lock (3,1); no conflict +SELECT b FROM t1 WHERE a=3 LOCK IN SHARE MODE; +# this should X-lock (3,1), conflicting with con1 +--send +SELECT b FROM t1 WHERE a=3 FOR UPDATE; + +connection con2; +# Check that the above SELECT is blocked +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = 'statistics' and + info = 'SELECT b FROM t1 WHERE a=3 FOR UPDATE'; +--source include/wait_condition.inc +SET DEBUG_SYNC='now SIGNAL select4'; + +connection default; +reap; + +connection con1; +--error ER_DUP_ENTRY +reap; +SET DEBUG_SYNC='write_row_noreplace SIGNAL insert5 WAIT_FOR select5'; +--send +LOAD DATA INFILE '../../std_data/loaddata5.dat' IGNORE INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b); + +connection default; +SET DEBUG_SYNC='now WAIT_FOR insert5'; +SELECT * FROM t1; +# this should S-lock; no conflict +SELECT * FROM t1 WHERE a=3 LOCK IN SHARE MODE; +# this should X-lock, conflicting with the S-lock of the IGNORE in con1 +--send +SELECT * FROM t1 WHERE a=3 FOR UPDATE; + +connection con2; +# Check that the above SELECT is blocked +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = 'statistics' and + info = 'SELECT * FROM t1 WHERE a=3 FOR UPDATE'; +--source include/wait_condition.inc +SET DEBUG_SYNC='now SIGNAL select5'; + +connection con1; +reap; +connection default; +reap; + +connection con1; +SET DEBUG_SYNC='write_row_replace SIGNAL insert6 WAIT_FOR select6'; +--send +LOAD DATA INFILE '../../std_data/loaddata5.dat' REPLACE INTO TABLE t1 FIELDS TERMINATED BY '' ENCLOSED BY '' (a, b); + +connection default; +SET DEBUG_SYNC='now WAIT_FOR insert6'; +SELECT * FROM t1; +# this should conflict with the X-lock acquired by the REPLACE +--send +SELECT a,b FROM t1 LOCK IN SHARE MODE; + +connection con2; +# Check that the above SELECT is blocked +let $wait_condition= + select count(*) = 1 from information_schema.processlist + where state = 'Sending data' and + info = 'SELECT a,b FROM t1 LOCK IN SHARE MODE'; +--source include/wait_condition.inc +SET DEBUG_SYNC='now SIGNAL select6'; + +connection con1; +reap; +connection default; +reap; + +disconnect con1; +disconnect con2; + +connection default; +SET DEBUG_SYNC='RESET'; +DROP TABLE t1; diff --git a/sql/sql_insert.cc b/sql/sql_insert.cc index eaf7f4c895b..c061a3f472c 100644 --- a/sql/sql_insert.cc +++ b/sql/sql_insert.cc @@ -77,6 +77,8 @@ #include "transaction.h" #include "sql_audit.h" +#include "debug_sync.h" + #ifndef EMBEDDED_LIBRARY static bool delayed_get_table(THD *thd, MDL_request *grl_protection_request, TABLE_LIST *table_list); @@ -1541,6 +1543,8 @@ int write_record(THD *thd, TABLE *table,COPY_INFO *info) error= HA_ERR_FOUND_DUPP_KEY; /* Database can't find key */ goto err; } + DEBUG_SYNC(thd, "write_row_replace"); + /* Read all columns for the row we are going to replace */ table->use_all_columns(); /* @@ -1729,6 +1733,7 @@ int write_record(THD *thd, TABLE *table,COPY_INFO *info) } else if ((error=table->file->ha_write_row(table->record[0]))) { + DEBUG_SYNC(thd, "write_row_noreplace"); if (!info->ignore || table->file->is_fatal_error(error, HA_CHECK_DUP)) goto err; diff --git a/storage/innobase/handler/ha_innodb.cc b/storage/innobase/handler/ha_innodb.cc index 54ab52fdaa1..045447873a9 100644 --- a/storage/innobase/handler/ha_innodb.cc +++ b/storage/innobase/handler/ha_innodb.cc @@ -5063,8 +5063,7 @@ no_commit: switch (sql_command) { case SQLCOM_LOAD: - if ((trx->duplicates - & (TRX_DUP_IGNORE | TRX_DUP_REPLACE))) { + if (trx->duplicates) { goto set_max_autoinc; } @@ -5339,8 +5338,7 @@ ha_innobase::update_row( && table->next_number_field && new_row == table->record[0] && thd_sql_command(user_thd) == SQLCOM_INSERT - && (trx->duplicates & (TRX_DUP_IGNORE | TRX_DUP_REPLACE)) - == TRX_DUP_IGNORE) { + && trx->duplicates) { ulonglong auto_inc; ulonglong col_max_value; @@ -8845,6 +8843,7 @@ ha_innobase::extra( break; case HA_EXTRA_RESET_STATE: reset_template(prebuilt); + thd_to_trx(ha_thd())->duplicates = 0; break; case HA_EXTRA_NO_KEYREAD: prebuilt->read_just_key = 0; @@ -8862,19 +8861,18 @@ ha_innobase::extra( parameters below. We must not invoke update_thd() either, because the calling threads may change. CAREFUL HERE, OR MEMORY CORRUPTION MAY OCCUR! */ - case HA_EXTRA_IGNORE_DUP_KEY: + case HA_EXTRA_INSERT_WITH_UPDATE: thd_to_trx(ha_thd())->duplicates |= TRX_DUP_IGNORE; break; + case HA_EXTRA_NO_IGNORE_DUP_KEY: + thd_to_trx(ha_thd())->duplicates &= ~TRX_DUP_IGNORE; + break; case HA_EXTRA_WRITE_CAN_REPLACE: thd_to_trx(ha_thd())->duplicates |= TRX_DUP_REPLACE; break; case HA_EXTRA_WRITE_CANNOT_REPLACE: thd_to_trx(ha_thd())->duplicates &= ~TRX_DUP_REPLACE; break; - case HA_EXTRA_NO_IGNORE_DUP_KEY: - thd_to_trx(ha_thd())->duplicates &= - ~(TRX_DUP_IGNORE | TRX_DUP_REPLACE); - break; default:/* Do nothing */ ; } diff --git a/storage/innobase/row/row0ins.c b/storage/innobase/row/row0ins.c index 2925feb2904..89caf94ff46 100644 --- a/storage/innobase/row/row0ins.c +++ b/storage/innobase/row/row0ins.c @@ -1652,7 +1652,7 @@ row_ins_scan_sec_index_for_duplicate( ulint n_fields_cmp; btr_pcur_t pcur; ulint err = DB_SUCCESS; - unsigned allow_duplicates; + ulint allow_duplicates; mtr_t mtr; mem_heap_t* heap = NULL; ulint offsets_[REC_OFFS_NORMAL_SIZE]; @@ -1683,7 +1683,7 @@ row_ins_scan_sec_index_for_duplicate( btr_pcur_open(index, entry, PAGE_CUR_GE, BTR_SEARCH_LEAF, &pcur, &mtr); - allow_duplicates = thr_get_trx(thr)->duplicates & TRX_DUP_IGNORE; + allow_duplicates = thr_get_trx(thr)->duplicates; /* Scan index records and check if there is a duplicate */ @@ -1817,7 +1817,7 @@ row_ins_duplicate_error_in_clust( sure that in roll-forward we get the same duplicate errors as in original execution */ - if (trx->duplicates & TRX_DUP_IGNORE) { + if (trx->duplicates) { /* If the SQL-query will update or replace duplicate key we will take X-lock for @@ -1861,7 +1861,7 @@ row_ins_duplicate_error_in_clust( offsets = rec_get_offsets(rec, cursor->index, offsets, ULINT_UNDEFINED, &heap); - if (trx->duplicates & TRX_DUP_IGNORE) { + if (trx->duplicates) { /* If the SQL-query will update or replace duplicate key we will take X-lock for |