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Code Activity

MDEV-23842 Atomic RENAME TABLE

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- 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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34
mysql-test/suite/rpl/r/rpl_blackhole_row_annotate.result
View File

@@ -196,7 +196,7 @@ ROLLBACK/*!*/;
/*!100001 SET @@session.server_id=1*//*!*/;
/*!100001 SET @@session.gtid_seq_no=1*//*!*/;
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
use `test`/*!*/;
SET TIMESTAMP=1000000000/*!*/;
SET @@session.pseudo_thread_id=#/*!*/;
@@ -213,7 +213,7 @@ CREATE TABLE t1 (a INT, b INT, c INT)
#010909 4:46:40 server id # end_log_pos # CRC32 XXX GTID 0-1-2 ddl
/*!100001 SET @@session.gtid_seq_no=2*//*!*/;
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
CREATE TABLE t2 (a INT, b INT, c INT)
/*!*/;
@@ -222,7 +222,7 @@ CREATE TABLE t2 (a INT, b INT, c INT)
/*!100001 SET @@session.server_id=2*//*!*/;
/*!100001 SET @@session.gtid_seq_no=3*//*!*/;
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
ALTER TABLE t1 ENGINE=BLACKHOLE
/*!*/;
@@ -241,7 +241,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Write_rows: table id # flags: STMT_END_F
# Number of rows: 4
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -259,7 +259,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Write_rows: table id # flags: STMT_END_F
# Number of rows: 4
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -277,7 +277,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Update_rows: table id # flags: STMT_END_F
# Number of rows: 2
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -295,7 +295,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Delete_rows: table id # flags: STMT_END_F
# Number of rows: 2
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -313,7 +313,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Write_rows: table id # flags: STMT_END_F
# Number of rows: 4
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -321,7 +321,7 @@ COMMIT
#010909 4:46:40 server id # end_log_pos # CRC32 XXX GTID 0-1-8 ddl
/*!100001 SET @@session.gtid_seq_no=8*//*!*/;
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
ALTER TABLE t1 ADD PRIMARY KEY pk_t1 (a,b)
/*!*/;
@@ -339,7 +339,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Write_rows: table id # flags: STMT_END_F
# Number of rows: 4
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -357,7 +357,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Update_rows: table id # flags: STMT_END_F
# Number of rows: 2
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -375,7 +375,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Delete_rows: table id # flags: STMT_END_F
# Number of rows: 2
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -383,7 +383,7 @@ COMMIT
#010909 4:46:40 server id # end_log_pos # CRC32 XXX GTID 0-1-12 ddl
/*!100001 SET @@session.gtid_seq_no=12*//*!*/;
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
ALTER TABLE t1 DROP PRIMARY KEY, ADD KEY key_t1 (a)
/*!*/;
@@ -401,7 +401,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Write_rows: table id # flags: STMT_END_F
# Number of rows: 4
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -419,7 +419,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Update_rows: table id # flags: STMT_END_F
# Number of rows: 2
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -437,7 +437,7 @@ START TRANSACTION
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Delete_rows: table id # flags: STMT_END_F
# Number of rows: 2
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
COMMIT
/*!*/;
@@ -445,7 +445,7 @@ COMMIT
#010909 4:46:40 server id # end_log_pos # CRC32 XXX GTID 0-1-16 ddl
/*!100001 SET @@session.gtid_seq_no=16*//*!*/;
# at #
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0
#010909 4:46:40 server id # end_log_pos # CRC32 XXX Query thread_id=# exec_time=# error_code=0 xid=<xid>
SET TIMESTAMP=1000000000/*!*/;
DROP TABLE IF EXISTS `t1`,`t2` /* generated by server */
/*!*/;