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RESET MASTER;
#
# binlog cache file is created in #binlog_cache_files directory
# and it is deleted at disconnect
#
connect con1,localhost,root,,;
CREATE TABLE t1 (c1 LONGTEXT) ENGINE = InnoDB;
# list binlog_cache_files/
INSERT INTO t1 values(repeat("1", 5242880));
INSERT INTO t1 values(repeat("1", 5242880));
FLUSH BINARY LOGS;
# list #binlog_cache_files/
ML_BINLOG_CACHE_FILE
SET debug_sync = "thread_end SIGNAL signal.thread_end";
disconnect con1;
connection default;
SET debug_sync = "now WAIT_FOR signal.thread_end";
# binlog cache file is deleted at disconnection
# list #binlog_cache_files/
#
# Reserved space is not big enough, rename will not happen. But rotate
# will succeed.
#
SET GLOBAL binlog_large_commit_threshold = 10 * 1024 * 1024;
SET debug = 'd,simulate_required_size_too_big';
UPDATE t1 SET c1 = repeat('2', 5242880);
include/assert.inc [Binlog is rotated, but rename is not executed.]
#
# Error happens when renaming binlog cache to binlog file, rename will
# not happen. Since the original binlog is delete, the rotate will failed
# too. binlog will be closed.
#
SET debug = 'd,simulate_rename_binlog_cache_to_binlog_error';
UPDATE t1 SET c1 = repeat('3', 5242880);
ERROR HY000: Can't open file: './master-bin.000004' (errno: 1 "Operation not permitted")
SELECT count(*) FROM t1 WHERE c1 like "3%";
count(*)
0
# Binlog is closed
show master status;
File Position Binlog_Do_DB Binlog_Ignore_DB
# restart
show master status;
File Position Binlog_Do_DB Binlog_Ignore_DB
master-bin.000004 # <Binlog_Do_DB> <Binlog_Ignore_DB>
#
# Crash happens before rename the file
#
SET GLOBAL binlog_large_commit_threshold = 10 * 1024 * 1024;
SET debug = 'd,binlog_commit_by_rotate_crash_before_rename';
UPDATE t1 SET c1 = repeat('4', 5242880);
ERROR HY000: Lost connection to server during query
# One cache file left after crash
# list #binlog_cache_files/
ML_BINLOG_CACHE_FILE
non_binlog_cache
# restart
# The cache file is deleted at startup.
# list #binlog_cache_files/
non_binlog_cache
include/assert_grep.inc [warning: non_binlog_cache file is in #binlog_cache_files/]
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000005 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
master-bin.000005 # Gtid_list # # [#-#-#]
#
# Crash happens just after rotation is finished, binlog commit is not
# started yet, so there is no Xid_log_event in the log, no garbage at
# the end of the file.
#
SET GLOBAL binlog_large_commit_threshold = 10 * 1024 * 1024;
BEGIN;
UPDATE t1 SET c1 = repeat('5', 5242880);
SAVEPOINT s1;
UPDATE t1 SET c1 = repeat('6', 5242880);
UPDATE t1 SET c1 = repeat('7', 5242880);
ROLLBACK TO SAVEPOINT s1;
INSERT INTO t1 VALUES('a');
SET debug = 'd,binlog_commit_by_rotate_crash_after_rotate';
COMMIT;
ERROR HY000: Lost connection to server during query
# No cache file left after crash
# list #binlog_cache_files/
# restart
include/show_binlog_events.inc
Log_name Pos Event_type Server_id End_log_pos Info
master-bin.000006 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
master-bin.000006 # Gtid_list # # [#-#-#]
master-bin.000006 # Gtid # # BEGIN GTID #-#-#
master-bin.000006 # Annotate_rows # # UPDATE t1 SET c1 = repeat('5', 5242880)
master-bin.000006 # Table_map # # table_id: # (test.t1)
master-bin.000006 # Update_rows_v1 # # table_id: #
master-bin.000006 # Update_rows_v1 # # table_id: # flags: STMT_END_F
master-bin.000006 # Query # # SAVEPOINT `s1`
master-bin.000006 # Annotate_rows # # INSERT INTO t1 VALUES('a')
master-bin.000006 # Table_map # # table_id: # (test.t1)
master-bin.000006 # Write_rows_v1 # # table_id: # flags: STMT_END_F
call mtr.add_suppression(".*Turning logging off for the whole duration.*");
call mtr.add_suppression(".*non_binlog_cache is in #binlog_cache_files/.*");
DROP TABLE t1;
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