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47010ccffa
- 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.
60 lines
2.1 KiB
Plaintext
60 lines
2.1 KiB
Plaintext
#
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# Test for compressed query event
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#
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--source include/have_log_bin.inc
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--source include/have_binlog_format_statement.inc
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#
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#
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# mysqlbinlog: compressed query event
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#
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#
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SET GLOBAL log_bin_compress=on;
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SET GLOBAL log_bin_compress_min_len=10;
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CREATE TABLE t1 (pk INT PRIMARY KEY, f1 INT, f2 INT, f3 TINYINT, f4 MEDIUMINT, f5 BIGINT, f6 INT, f7 INT, f8 char(1));
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CREATE TABLE t2 (pk INT PRIMARY KEY, f1 INT, f2 INT, f3 INT, f4 INT, f5 MEDIUMINT, f6 INT, f7 INT, f8 char(1));
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INSERT INTO t1 VALUES (10, 1, 2, 3, 4, 5, 6, 7, "");
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INSERT INTO t1 VALUES (11, 1, 2, 3, 4, 5, 6, 7, NULL);
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INSERT INTO t1 VALUES (12, 1, 2, 3, NULL, 5, 6, 7, "A");
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INSERT INTO t1 VALUES (13, 1, 2, 3, 0, 5, 6, 7, "A");
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INSERT INTO t2 SELECT * FROM t1;
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UPDATE t2 SET f4=5 WHERE f4>0 or f4 is NULL;
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DELETE FROM t1;
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DELETE FROM t2;
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--let $binlog = query_get_value(SHOW MASTER STATUS, File, 1)
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--let $datadir = `SELECT @@datadir`
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FLUSH BINARY LOGS;
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--replace_result $MYSQLTEST_VARDIR MYSQLTEST_VARDIR
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--replace_regex /\d{6} *\d*:\d\d:\d\d/<date>/ /Start:.*at startup/Start: xxx/ /SET TIMESTAMP=\d*/SET TIMESTAMP=X/ /exec_time=\d*/exec_time=x/ /mapped to number \d*/mapped to number num/ /CRC32 0x[0-9a-f]+/CRC32 XXX/ /@@session.sql_mode=\d+/@@session.sql_mode=#/ /collation_server=\d+/collation_server=#/ /xid=\d*/xid=<xid>/
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--exec $MYSQL_BINLOG --verbose --verbose --base64-output=DECODE-ROWS $datadir/$binlog
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--echo
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--echo Test mysqlbinlog | mysql type point-in-time recovery with compressed events.
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--echo
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FLUSH BINARY LOGS;
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--let $binlog_file = query_get_value(SHOW MASTER STATUS, File, 1)
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CREATE TABLE t3 (a INT PRIMARY KEY, b INT, c VARCHAR(100));
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INSERT INTO t3 VALUES (0, 10, "hello");
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BEGIN;
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INSERT INTO t3 VALUES (1, 10, "cat"), (2, 10, "mouse"), (3, 10, "dog");
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INSERT INTO t3 VALUES (4, 10, "goodbye");
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COMMIT;
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DELETE FROM t3 WHERE a=2;
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SELECT * FROM t3 ORDER BY a;
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FLUSH LOGS;
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DROP TABLE t3;
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--let $MYSQLD_DATADIR= `select @@datadir`
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--exec $MYSQL_BINLOG $MYSQLD_DATADIR/$binlog_file | $MYSQL
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SELECT * FROM t3 ORDER BY a;
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DROP TABLE t1,t2,t3;
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SET GLOBAL log_bin_compress=off;
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SET GLOBAL log_bin_compress_min_len=256;
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