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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-05-04 18:07:14 +0000 |
| commit | a175314c3e5827eb193872241446f2f8f5c9d33c (patch) | |
| tree | cd3d60ca99ae00829c52a6ca79150a5b6e62528b /mysql-test/main/backup_lock_debug.result | |
| parent | Initial commit. (diff) | |
| download | mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.tar.xz mariadb-10.5-a175314c3e5827eb193872241446f2f8f5c9d33c.zip | |
Adding upstream version 1:10.5.12.upstream/1%10.5.12upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
| -rw-r--r-- | mysql-test/main/backup_lock_debug.result | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/mysql-test/main/backup_lock_debug.result b/mysql-test/main/backup_lock_debug.result new file mode 100644 index 00000000..7c7b0590 --- /dev/null +++ b/mysql-test/main/backup_lock_debug.result @@ -0,0 +1,53 @@ +# +# Make sure pending LOCK TABLES doesn't block BACKUP STAGE +# +CREATE TABLE t1(a INT); +LOCK TABLE t1 READ; +# +connect con1,localhost,root,,; +SET DEBUG_SYNC= 'mdl_acquire_lock_wait SIGNAL ready'; +LOCK TABLE t1 WRITE; +# +connect con2,localhost,root,,; +SET DEBUG_SYNC= 'now WAIT_FOR ready'; +BACKUP STAGE START; +BACKUP STAGE FLUSH; +BACKUP STAGE BLOCK_DDL; +BACKUP STAGE END; +disconnect con2; +# +connection default; +UNLOCK TABLES; +# +connection con1; +UNLOCK TABLES; +disconnect con1; +# +connection default; +DROP TABLE t1; +SET DEBUG_SYNC= 'RESET'; +# +# Demonstrates a deadlock if BACKUP namespace is reorder after SCHEMA. +# Culprit is ALTER TABLE taking SCHEMA lock on target database after +# BACKUP lock was acquired. +# +CREATE DATABASE test2; +CREATE TABLE t1(a INT) ENGINE=InnoDB; +SET DEBUG_SYNC='alter_opened_table SIGNAL ready WAIT_FOR go'; +ALTER TABLE t1 RENAME TO test2.t1; +connect con1,localhost,root,,; +SET DEBUG_SYNC='now WAIT_FOR ready'; +BACKUP STAGE START; +SET DEBUG_SYNC='mdl_acquire_lock_wait SIGNAL ready1'; +BACKUP STAGE BLOCK_DDL; +connect con2,localhost,root,,; +SET DEBUG_SYNC='now WAIT_FOR ready1'; +SET DEBUG_SYNC='mdl_acquire_lock_wait SIGNAL go'; +DROP DATABASE test2; +connection default; +connection con1; +disconnect con1; +connection con2; +disconnect con2; +connection default; +SET DEBUG_SYNC='reset'; |