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40bbf697aa
Make the commit checkpoint inside InnoDB be asynchroneous. Implement a background thread in binlog to do the writing and flushing of binlog checkpoint events to disk.
95 lines
4.7 KiB
Plaintext
95 lines
4.7 KiB
Plaintext
SET @old_max_binlog_size= @@global.max_binlog_size;
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SET GLOBAL max_binlog_size= 4096;
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SET @old_innodb_flush_log_at_trx_commit= @@global.innodb_flush_log_at_trx_commit;
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SET GLOBAL innodb_flush_log_at_trx_commit= 1;
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RESET MASTER;
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CREATE TABLE t1 (a INT PRIMARY KEY, b MEDIUMTEXT) ENGINE=Innodb;
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CREATE TABLE t2 (a INT PRIMARY KEY, b MEDIUMTEXT) ENGINE=Myisam;
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*** Test that RESET MASTER waits for pending commit checkpoints to complete.
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con1_ready WAIT_FOR con1_go";
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INSERT INTO t1 VALUES (1, REPEAT("x", 4100));
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SET DEBUG_SYNC= "now WAIT_FOR con1_ready";
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INSERT INTO t2 VALUES (1, REPEAT("x", 4100));
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INSERT INTO t2 VALUES (2, REPEAT("x", 4100));
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show binary logs;
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Log_name File_size
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master-bin.000001 #
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master-bin.000002 #
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master-bin.000003 #
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master-bin.000004 #
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show binlog events in 'master-bin.00000<binlog_start>' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.00000<binlog_start> # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.00000<binlog_start> # Binlog_checkpoint # # master-bin.000001
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SET DEBUG_SYNC= "execute_command_after_close_tables SIGNAL reset_master_done";
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RESET MASTER;
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This will timeout, as RESET MASTER is blocked
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SET DEBUG_SYNC= "now WAIT_FOR reset_master_done TIMEOUT 1";
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Warnings:
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Warning 1639 debug sync point wait timed out
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SET DEBUG_SYNC= "now SIGNAL con1_go";
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show binary logs;
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Log_name File_size
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master-bin.000001 #
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show binlog events in 'master-bin.000001' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000001 # Binlog_checkpoint # # master-bin.000001
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*** Test that binlog N is active, and commit checkpoint for (N-1) is
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*** done while there is still a pending commit checkpoint for (N-2).
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con1_ready WAIT_FOR con1_continue";
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INSERT INTO t1 VALUES (20, REPEAT("x", 4100));
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SET DEBUG_SYNC= "now WAIT_FOR con1_ready";
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con2_ready WAIT_FOR con2_continue";
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INSERT INTO t1 VALUES (21, REPEAT("x", 4100));
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SET DEBUG_SYNC= "now WAIT_FOR con2_ready";
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show binary logs;
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Log_name File_size
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master-bin.000001 #
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master-bin.000002 #
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master-bin.000003 #
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show binlog events in 'master-bin.000001' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000001 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000001 # Binlog_checkpoint # # master-bin.000001
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master-bin.000001 # Query # # BEGIN
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master-bin.000001 # Table_map # # table_id: # (test.t1)
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master-bin.000001 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000001 # Xid # # COMMIT /* XID */
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master-bin.000001 # Rotate # # master-bin.000002;pos=<binlog_start>
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show binlog events in 'master-bin.000002' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000002 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000002 # Binlog_checkpoint # # master-bin.000001
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master-bin.000002 # Query # # BEGIN
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master-bin.000002 # Table_map # # table_id: # (test.t1)
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master-bin.000002 # Write_rows # # table_id: # flags: STMT_END_F
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master-bin.000002 # Xid # # COMMIT /* XID */
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master-bin.000002 # Rotate # # master-bin.000003;pos=<binlog_start>
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show binlog events in 'master-bin.000003' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000003 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000003 # Binlog_checkpoint # # master-bin.000001
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SET DEBUG_SYNC= "RESET";
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SET @old_dbug= @@global.DEBUG_DBUG;
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SET GLOBAL debug_dbug="+d,binlog_background_checkpoint_processed";
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SET DEBUG_SYNC= "now SIGNAL con2_continue";
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con1 is still pending, no new binlog checkpoint should have been logged.
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SET DEBUG_SYNC= "now WAIT_FOR binlog_background_checkpoint_processed";
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SET GLOBAL debug_dbug= @old_dbug;
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SET DEBUG_SYNC= "RESET";
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show binlog events in 'master-bin.000003' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000003 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000003 # Binlog_checkpoint # # master-bin.000001
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SET DEBUG_SYNC= "now SIGNAL con1_continue";
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No commit checkpoints are pending, a new binlog checkpoint should have been logged.
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show binlog events in 'master-bin.000003' from <binlog_start>;
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000003 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000003 # Binlog_checkpoint # # master-bin.000001
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master-bin.000003 # Binlog_checkpoint # # master-bin.000003
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DROP TABLE t1, t2;
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SET GLOBAL max_binlog_size= @old_max_binlog_size;
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SET GLOBAL innodb_flush_log_at_trx_commit= @old_innodb_flush_log_at_trx_commit;
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