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| author | Nikita Malyavin <nikitamalyavin@gmail.com> | 2022-06-30 14:37:22 +0300 |
|---|---|---|
| committer | Nikita Malyavin <nikitamalyavin@gmail.com> | 2022-06-30 14:37:22 +0300 |
| commit | 0c997f89c4edaaf5c7f977588e761f0d8165605c (patch) | |
| tree | 412aedacf7b058ab65381c6b347bfd753d3ee6bb /sql/sql_table.cc | |
| parent | 7d2f78741471e00349f332604e02d7cb478fe86a (diff) | |
| download | mariadb-git-bb-10.10-MDEV-28771.tar.gz | |
speed up main.alter_table_online_debugbb-10.10-MDEV-28771
Diffstat (limited to 'sql/sql_table.cc')
| -rw-r--r-- | sql/sql_table.cc | 11 |
1 files changed, 8 insertions, 3 deletions
diff --git a/sql/sql_table.cc b/sql/sql_table.cc index 8e26593fcb2..9f41faa1cf9 100644 --- a/sql/sql_table.cc +++ b/sql/sql_table.cc @@ -11866,9 +11866,14 @@ copy_data_between_tables(THD *thd, TABLE *from, TABLE *to, DEBUG_SYNC(thd, "alter_table_online_before_lock"); - int lock_error= - thd->mdl_context.upgrade_shared_lock(from->mdl_ticket, MDL_EXCLUSIVE, - (double)thd->variables.lock_wait_timeout); + double lock_wait_timeout= (double)thd->variables.lock_wait_timeout; + DBUG_EXECUTE_IF("alter_table_online_timeout_fast", + lock_wait_timeout= 0.001;); + + + int lock_error= thd->mdl_context.upgrade_shared_lock(from->mdl_ticket, + MDL_EXCLUSIVE, + lock_wait_timeout); if (!error) error= lock_error; |