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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.
171 lines
4.8 KiB
Text
171 lines
4.8 KiB
Text
#
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# This tests tries cover most of the recovery cases in
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# DDL_LOG_RENAME_TABLE_ACTION and do_rename()
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# This test does not intend to crash the server
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# It's a complement to main.rename
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#
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create database test2;
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--echo #
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--echo # Testing rename error in different places
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--echo #
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create table t1 (a int);
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create table t2 (b int);
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create table t3 (c int);
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create table t4 (d int);
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insert into t1 values(1);
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insert into t2 values(2);
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insert into t3 values(3);
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insert into t4 values(4);
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create temporary table tmp1 (a int);
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create temporary table tmp2 (b int);
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create temporary table tmp3 (c int);
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create temporary table tmp4 (d int);
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insert into tmp1 values(11);
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insert into tmp2 values(22);
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insert into tmp3 values(33);
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insert into tmp4 values(44);
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--error ER_TABLE_EXISTS_ERROR
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rename table t3 to t4, t1 to t5, t2 to t1, t5 to t2;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t3 to t4, t2 to t1, t5 to t2;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t3 to t4, t5 to t2;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t5 to t2, t3 to t4;
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--echo # Try failed rename using two databases
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--error ER_NO_SUCH_TABLE
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rename table test.t1 to test2.t5, test.t2 to test.t1, t5 to test.t2;
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select t1.a+t2.b+t3.c+t4.d from t1,t2,t3,t4;
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--error ER_NO_SUCH_TABLE
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select * from t5;
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--echo #
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--echo # Testing rename error in different places with temporary tables
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--echo #
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--error ER_TABLE_EXISTS_ERROR
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rename table tmp3 to tmp4, tmp1 to t5, tmp2 to tmp1, t5 to tmp1;
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--error ER_TABLE_EXISTS_ERROR
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rename table tmp1 to t5, tmp3 to tmp4, tmp2 to tmp1, t5 to tmp1;
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--error ER_TABLE_EXISTS_ERROR
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rename table tmp1 to t5, tmp2 to tmp1, tmp3 to tmp4, t5 to tmp1;
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--error ER_TABLE_EXISTS_ERROR
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rename table tmp1 to t5, tmp2 to tmp1, t5 to tmp1, tmp3 to tmp4;
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select tmp1.a+tmp2.b+tmp3.c+tmp4.d from tmp1,tmp2,tmp3,tmp4;
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--error ER_NO_SUCH_TABLE
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select * from t5;
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--echo #
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--echo # Testing combinations of rename normal and temporary tables
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--echo #
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t5 to t2, tmp3 to tmp4, tmp1 to t5, tmp2 to tmp1, t5 to tmp1;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t5 to t2, tmp1 to t5, tmp3 to tmp4, tmp2 to tmp1, t5 to tmp1;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t5 to t2, tmp1 to t5, tmp2 to tmp1, tmp3 to tmp4, t5 to tmp1;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t5 to t2, tmp1 to t5, tmp2 to tmp1, t5 to tmp1, t3 to t4;
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--error ER_NO_SUCH_TABLE
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rename table t1 to t5, tmp2 to tmp5, t2 to t1, tmp2 to tmp1, t5 to t2, tmp5 to tmp1, t8 to t9;
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select t1.a+t2.b+t3.c+t4.d from t1,t2,t3,t4;
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select tmp1.a+tmp2.b+tmp3.c+tmp4.d from tmp1,tmp2,tmp3,tmp4;
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drop table tmp1,tmp2,tmp3,tmp4;
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--echo #
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--echo # Similar tests with triggers
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--echo #
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delimiter |;
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create trigger t1_trg before insert on t1 for each row
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begin
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if isnull(new.a) then
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set new.a:= 10;
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end if;
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end|
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create trigger t2_trg before insert on t2 for each row
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begin
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if isnull(new.b) then
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set new.b:= 100;
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end if;
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end|
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create trigger t3_trg before insert on t3 for each row
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begin
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if isnull(new.c) then
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set new.c:= 1000;
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end if;
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end|
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delimiter ;|
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--error ER_TABLE_EXISTS_ERROR
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rename table t3 to t4, t1 to t5, t2 to t1, t5 to t2;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t3 to t4, t2 to t1, t5 to t2;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t3 to t4, t5 to t2;
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--error ER_TABLE_EXISTS_ERROR
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rename table t1 to t5, t2 to t1, t5 to t2, t3 to t4;
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--echo # Test of move table between databases
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--error ER_TRG_IN_WRONG_SCHEMA
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rename table t4 to test2.t5, t2 to t4, test2.t5 to t2, t1 to test2.t6;
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--replace_column 6 #
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show triggers;
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select t1.a+t2.b+t3.c+t4.d from t1,t2,t3,t4;
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insert into t1 values(null);
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insert into t2 values(null);
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insert into t3 values(null);
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select (select sum(t1.a) from t1)+ (select sum(t2.b) from t2) + (select sum(t3.c) from t3)+ (select sum(t4.d) from t4);
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drop trigger t1_trg;
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drop trigger t2_trg;
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drop trigger t3_trg;
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--echo #
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--echo # Test with views
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--echo #
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create view v1 as select * from t1;
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create view v2 as select * from t2;
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create view v3 as select * from t3;
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create view v4 as select * from t4;
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--error ER_TABLE_EXISTS_ERROR
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rename table v3 to v4, v1 to t5, v2 to v1, t5 to v2;
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--error ER_TABLE_EXISTS_ERROR
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rename table v1 to t5, v3 to v4, v2 to v1, t5 to v2;
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--error ER_TABLE_EXISTS_ERROR
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rename table v1 to t5, v2 to v1, v3 to v4, t5 to v2;
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--error ER_TABLE_EXISTS_ERROR
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rename table v1 to t5, v2 to v1, t5 to v2, v3 to v4;
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--echo # Try failed rename using two databases
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--error ER_FORBID_SCHEMA_CHANGE
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rename table test.v1 to test.v5, test.v2 to test.v1, test.v3 to test2.v2, non_existing_view to another_non_existing_view;
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select (select sum(v1.a) from v1)+ (select sum(v2.b) from v2) + (select sum(v3.c) from v3)+ (select sum(v4.d) from v4);
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drop view v1,v2,v3,v4;
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#
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# Clean up
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#
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drop table t1, t2, t3, t4;
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drop database test2;
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