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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.
49 lines
1.8 KiB
Text
49 lines
1.8 KiB
Text
# ==== Purpose ====
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#
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# Test verifies that when "replicate_annotate_row_events" are enabled on slave
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# the DML operations on blackhole engine will be successful. It also ensures
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# that Annotate events are logged into slave's binary log.
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#
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# ==== Implementation ====
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#
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# Steps:
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# 0 - Enable "replicate_annotate_row_events" on slave and do DML operations
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# on master.
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# 1 - Slave server will successfully apply the DML operations and it is in
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# sync with master.
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# 2 - Verify that the "show binlog events" prints all annotate events.
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# 3 - Stream the slave's binary log using "mysqlbinlog" tool and verify
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# that the Annotate events are being displayed.
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#
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# ==== References ====
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#
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# MDEV-11094: Blackhole table updates on slave fail when row annotation is
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# enabled
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source include/have_blackhole.inc;
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source include/have_binlog_format_row.inc;
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source include/binlog_start_pos.inc;
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source include/master-slave.inc;
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SET timestamp=1000000000;
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RESET MASTER;
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connection slave;
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SET timestamp=1000000000;
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RESET MASTER;
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connection master;
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source include/rpl_blackhole_basic.test;
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# Verify on slave.
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connection slave;
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FLUSH LOGS;
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--replace_column 2 # 5 #
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--replace_result $binlog_start_pos <start_pos>
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--replace_regex /table_id: [0-9]+/table_id: #/ /\/\* xid=.* \*\//\/* xid= *\//
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--eval show binlog events in 'slave-bin.000001' from $binlog_start_pos
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let $MYSQLD_DATADIR= `select @@datadir`;
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--replace_regex /server id [0-9]*/server id #/ /server v [^ ]*/server v #.##.##/ /exec_time=[0-9]*/exec_time=#/ /thread_id=[0-9]*/thread_id=#/ /table id [0-9]*/table id #/ /mapped to number [0-9]*/mapped to number #/ /end_log_pos [0-9]*/end_log_pos #/ /# at [0-9]*/# at #/ /CRC32 0x[0-9a-f]*/CRC32 XXX/ /xid=\d*/xid=<xid>/
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--exec $MYSQL_BINLOG --base64-output=decode-rows $MYSQLD_DATADIR/slave-bin.000001
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source include/rpl_end.inc;
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