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Code Activity

MDEV-23842 Atomic RENAME TABLE

Browse Source 
- Major rewrite of ddl_log.cc and ddl_log.h
  - ddl_log.cc described in the beginning how the recovery works.
  - ddl_log.log has unique signature and is dynamic. It's easy to
    add more information to the header and other ddl blocks while still
    being able to execute old ddl entries.
  - IO_SIZE for ddl blocks is now dynamic. Can be changed without affecting
    recovery of old logs.
  - Code is more modular and is now usable outside of partition handling.
  - Renamed log file to dll_recovery.log and added option --log-ddl-recovery
    to allow one to specify the path & filename.
- Added ddl_log_entry_phase[], number of phases for each DDL action,
  which allowed me to greatly simply set_global_from_ddl_log_entry()
- Changed how strings are stored in log entries, which allows us to
  store much more information in a log entry.
- ddl log is now always created at start and deleted on normal shutdown.
  This simplices things notable.
- Added probes debug_crash_here() and debug_simulate_error() to simply
  crash testing and allow crash after a given number of times a probe
  is executed. See comments in debug_sync.cc and rename_table.test for
  how this can be used.
- Reverting failed table and view renames is done trough the ddl log.
  This ensures that the ddl log is tested also outside of recovery.
- Added helper function 'handler::needs_lower_case_filenames()'
- Extend binary log with Q_XID events. ddl log handling is using this
  to check if a ddl log entry was logged to the binary log (if yes,
  it will be deleted from the log during ddl_log_close_binlogged_events()
- If a DDL entry fails 3 time, disable it. This is to ensure that if
  we have a crash in ddl recovery code the server will not get stuck
  in a forever crash-restart-crash loop.

mysqltest.cc changes:
- --die will now replace $variables with their values
- $error will contain the error of the last failed statement

storage engine changes:
- maria_rename() was changed to be more robust against crashes during
  rename.
This commit is contained in:
Monty
2020-10-15 02:25:57 +03:00
committed by Sergei Golubchik
parent 55c771b4f3
commit 47010ccffa
69 changed files with 4121 additions and 1403 deletions
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24
mysql-test/main/mysqlbinlog.result
View File

@ -970,7 +970,7 @@ AAAAAAAAAAAAAAAAAAAgrgJSFzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
# b1 61 62 6c 65 20 74 65 73 74 2e 74 31 20 28 69 64 |able test.t1 (id|
# c1 20 69 6e 74 20 6e 6f 74 20 6e 75 6c 6c 29 | int not null)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907364/*!*/;
SET @@session.pseudo_thread_id=1/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1, @@session.check_constraint_checks=1, @@session.sql_if_exists=0/*!*/;
@ -994,7 +994,7 @@ create table test.t1 (id int not null)
# 116 6e 74 6f 20 74 65 73 74 2e 74 31 20 28 69 64 29 |nto test.t1 (id)|
# 126 20 76 61 6c 75 65 73 20 28 31 29 | values (1)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907366/*!*/;
insert into test.t1 (id) values (1)
/*!*/;
@ -1009,7 +1009,7 @@ insert into test.t1 (id) values (1)
# 168 04 08 00 08 00 08 00 00 64 72 6f 70 20 74 61 62 |........drop tab|
# 178 6c 65 20 74 65 73 74 2e 74 31 |le test.t1|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907368/*!*/;
drop table test.t1
/*!*/;
@ -1053,7 +1053,7 @@ AAAAAAAAAAAAAAAAAAA/rQJSGzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
# b5 61 62 6c 65 20 74 65 73 74 2e 74 31 20 28 69 64 |able test.t1 (id|
# c5 20 69 6e 74 20 6e 6f 74 20 6e 75 6c 6c 29 | int not null)|
#
# Event: Query thread_id=1 exec_time=1 error_code=0
# Event: Query thread_id=1 exec_time=1 error_code=0 xid=0
SET TIMESTAMP=1375907141/*!*/;
SET @@session.pseudo_thread_id=1/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1, @@session.check_constraint_checks=1, @@session.sql_if_exists=0/*!*/;
@ -1077,7 +1077,7 @@ create table test.t1 (id int not null)
# 11e 6e 74 6f 20 74 65 73 74 2e 74 31 20 28 69 64 29 |nto test.t1 (id)|
# 12e 20 76 61 6c 75 65 73 20 28 31 29 | values (1)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907144/*!*/;
insert into test.t1 (id) values (1)
/*!*/;
@ -1092,7 +1092,7 @@ insert into test.t1 (id) values (1)
# 174 04 08 00 08 00 08 00 00 64 72 6f 70 20 74 61 62 |........drop tab|
# 184 6c 65 20 74 65 73 74 2e 74 31 |le test.t1|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907148/*!*/;
drop table test.t1
/*!*/;
@ -1136,7 +1136,7 @@ AAAAAAAAAAAAAAAAAAAnrAJSHzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
# b9 61 62 6c 65 20 74 65 73 74 2e 74 31 20 28 69 64 |able test.t1 (id|
# c9 20 69 6e 74 20 6e 6f 74 20 6e 75 6c 6c 29 | int not null)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375906879/*!*/;
SET @@session.pseudo_thread_id=1/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1, @@session.check_constraint_checks=1, @@session.sql_if_exists=0/*!*/;
@ -1160,7 +1160,7 @@ create table test.t1 (id int not null)
# 126 6e 74 6f 20 74 65 73 74 2e 74 31 20 28 69 64 29 |nto test.t1 (id)|
# 136 20 76 61 6c 75 65 73 20 28 31 29 | values (1)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375906891/*!*/;
insert into test.t1 (id) values (1)
/*!*/;
@ -1175,7 +1175,7 @@ insert into test.t1 (id) values (1)
# 180 04 08 00 08 00 08 00 00 64 72 6f 70 20 74 61 62 |........drop tab|
# 190 6c 65 20 74 65 73 74 2e 74 31 |le test.t1|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375906901/*!*/;
drop table test.t1
/*!*/;
@ -1219,7 +1219,7 @@ AAAAAAAAAAAAAAAAAABbsAJSEzgNAAgAEgAEBAQEEgAAUwAEGggAAAAICAgC
# ad 61 62 6c 65 20 74 65 73 74 2e 74 31 20 28 69 64 |able test.t1 (id|
# bd 20 69 6e 74 20 6e 6f 74 20 6e 75 6c 6c 29 | int not null)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907933/*!*/;
SET @@session.pseudo_thread_id=1/*!*/;
SET @@session.foreign_key_checks=1, @@session.sql_auto_is_null=1, @@session.unique_checks=1, @@session.autocommit=1, @@session.check_constraint_checks=1, @@session.sql_if_exists=0/*!*/;
@ -1243,7 +1243,7 @@ create table test.t1 (id int not null)
# 10e 6e 74 6f 20 74 65 73 74 2e 74 31 20 28 69 64 29 |nto test.t1 (id)|
# 11e 20 76 61 6c 75 65 73 20 28 31 29 | values (1)|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907935/*!*/;
insert into test.t1 (id) values (1)
/*!*/;
@ -1258,7 +1258,7 @@ insert into test.t1 (id) values (1)
# 15c 04 08 00 08 00 08 00 00 64 72 6f 70 20 74 61 62 |........drop tab|
# 16c 6c 65 20 74 65 73 74 2e 74 31 |le test.t1|
#
# Event: Query thread_id=1 exec_time=0 error_code=0
# Event: Query thread_id=1 exec_time=0 error_code=0 xid=0
SET TIMESTAMP=1375907937/*!*/;
drop table test.t1
/*!*/;