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3c021485c9
1. wait for the binlog thread to reach the certain state, don't use a debug_sync that's incorrectly placed to detect the state 2. no need to do a (non-deterministic) `show binlog events` to verify what is guaranteed by the directly preceding line
229 lines
8.2 KiB
Text
229 lines
8.2 KiB
Text
SET GLOBAL max_binlog_size= 4096;
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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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INSERT INTO t1 VALUES (100, REPEAT("x", 4100));
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INSERT INTO t1 VALUES (101, REPEAT("x", 4100));
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INSERT INTO t1 VALUES (102, REPEAT("x", 4100));
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connect con1,localhost,root,,;
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SET DEBUG_SYNC= "ha_commit_trans_before_log_and_order SIGNAL con1_wait WAIT_FOR con1_cont";
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con1_ready WAIT_FOR _ever";
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INSERT INTO t1 VALUES (1, REPEAT("x", 4100));
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con1_wait";
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connect con2,localhost,root,,;
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SET DEBUG_SYNC= "ha_commit_trans_before_log_and_order SIGNAL con2_wait WAIT_FOR con2_cont";
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con2_ready WAIT_FOR _ever";
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INSERT INTO t1 VALUES (2, NULL);
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con2_wait";
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connect con3,localhost,root,,;
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SET DEBUG_SYNC= "ha_commit_trans_before_log_and_order SIGNAL con3_wait WAIT_FOR con3_cont";
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con3_ready WAIT_FOR _ever";
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INSERT INTO t1 VALUES (3, REPEAT("x", 4100));
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con3_wait";
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connect con4,localhost,root,,;
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SET DEBUG_SYNC= "ha_commit_trans_before_log_and_order SIGNAL con4_wait WAIT_FOR con4_cont";
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SET SESSION debug_dbug="+d,crash_commit_after_log";
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INSERT INTO t1 VALUES (4, NULL);
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con4_wait";
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SET DEBUG_SYNC= "now SIGNAL con1_cont";
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SET DEBUG_SYNC= "now WAIT_FOR con1_ready";
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SET DEBUG_SYNC= "now SIGNAL con2_cont";
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SET DEBUG_SYNC= "now WAIT_FOR con2_ready";
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SET DEBUG_SYNC= "now SIGNAL con3_cont";
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SET DEBUG_SYNC= "now WAIT_FOR con3_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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master-bin.000004 #
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master-bin.000005 #
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master-bin.000006 #
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include/show_binlog_events.inc
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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 # Start_encryption # #
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master-bin.000003 # Gtid_list # # [#-#-#]
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master-bin.000003 # Binlog_checkpoint # # master-bin.000002
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master-bin.000003 # Binlog_checkpoint # # master-bin.000003
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master-bin.000003 # Gtid # # BEGIN GTID #-#-#
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master-bin.000003 # Annotate_rows # # INSERT INTO t1 VALUES (102, REPEAT("x", 4100))
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master-bin.000003 # Table_map # # table_id: # (test.t1)
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master-bin.000003 # Write_rows_v1 # # table_id: # flags: STMT_END_F
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master-bin.000003 # Xid # # COMMIT /* XID */
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master-bin.000003 # Rotate # # master-bin.000004;pos=POS
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000004 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000004 # Start_encryption # #
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master-bin.000004 # Gtid_list # # [#-#-#]
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master-bin.000004 # Binlog_checkpoint # # master-bin.000003
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master-bin.000004 # Binlog_checkpoint # # master-bin.000004
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master-bin.000004 # Gtid # # BEGIN GTID #-#-#
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master-bin.000004 # Annotate_rows # # INSERT INTO t1 VALUES (1, REPEAT("x", 4100))
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master-bin.000004 # Table_map # # table_id: # (test.t1)
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master-bin.000004 # Write_rows_v1 # # table_id: # flags: STMT_END_F
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master-bin.000004 # Xid # # COMMIT /* XID */
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master-bin.000004 # Rotate # # master-bin.000005;pos=POS
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000005 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000005 # Start_encryption # #
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master-bin.000005 # Gtid_list # # [#-#-#]
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master-bin.000005 # Binlog_checkpoint # # master-bin.000004
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master-bin.000005 # Gtid # # BEGIN GTID #-#-#
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master-bin.000005 # Annotate_rows # # INSERT INTO t1 VALUES (2, NULL)
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master-bin.000005 # Table_map # # table_id: # (test.t1)
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master-bin.000005 # Write_rows_v1 # # table_id: # flags: STMT_END_F
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master-bin.000005 # Xid # # COMMIT /* XID */
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master-bin.000005 # Gtid # # BEGIN GTID #-#-#
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master-bin.000005 # Annotate_rows # # INSERT INTO t1 VALUES (3, REPEAT("x", 4100))
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master-bin.000005 # Table_map # # table_id: # (test.t1)
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master-bin.000005 # Write_rows_v1 # # table_id: # flags: STMT_END_F
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master-bin.000005 # Xid # # COMMIT /* XID */
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master-bin.000005 # Rotate # # master-bin.000006;pos=POS
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000006 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000006 # Start_encryption # #
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master-bin.000006 # Gtid_list # # [#-#-#]
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master-bin.000006 # Binlog_checkpoint # # master-bin.000004
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PURGE BINARY LOGS TO "master-bin.000006";
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show binary logs;
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Log_name File_size
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master-bin.000004 #
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master-bin.000005 #
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master-bin.000006 #
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SET DEBUG_SYNC= "now SIGNAL con4_cont";
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connection con4;
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Got one of the listed errors
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connection default;
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SELECT a FROM t1 ORDER BY a;
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a
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1
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2
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3
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4
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100
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101
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102
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Test that with multiple binlog checkpoints, recovery starts from the last one.
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SET GLOBAL max_binlog_size= 4096;
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SET GLOBAL innodb_flush_log_at_trx_commit= 1;
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RESET MASTER;
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connect con10,localhost,root,,;
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con10_ready WAIT_FOR con10_cont";
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INSERT INTO t1 VALUES (10, REPEAT("x", 4100));
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con10_ready";
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connect con11,localhost,root,,;
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con11_ready WAIT_FOR con11_cont";
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INSERT INTO t1 VALUES (11, REPEAT("x", 4100));
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con11_ready";
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connect con12,localhost,root,,;
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SET DEBUG_SYNC= "commit_after_group_release_commit_ordered SIGNAL con12_ready WAIT_FOR con12_cont";
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INSERT INTO t1 VALUES (12, REPEAT("x", 4100));
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connection default;
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SET DEBUG_SYNC= "now WAIT_FOR con12_ready";
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INSERT INTO t1 VALUES (13, NULL);
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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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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000004 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000004 # Start_encryption # #
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master-bin.000004 # Gtid_list # # [#-#-#]
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master-bin.000004 # Binlog_checkpoint # # master-bin.000001
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master-bin.000004 # Gtid # # BEGIN GTID #-#-#
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master-bin.000004 # Annotate_rows # # INSERT INTO t1 VALUES (13, NULL)
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master-bin.000004 # Table_map # # table_id: # (test.t1)
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master-bin.000004 # Write_rows_v1 # # table_id: # flags: STMT_END_F
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master-bin.000004 # Xid # # COMMIT /* XID */
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SET DEBUG_SYNC= "now SIGNAL con10_cont";
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connection con10;
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connection default;
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SET DEBUG_SYNC= "now SIGNAL con12_cont";
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connection con12;
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connection default;
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SET DEBUG_SYNC= "now SIGNAL con11_cont";
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connection con11;
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connection default;
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Now crash the server
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SET SESSION debug_dbug="+d,crash_commit_after_log";
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INSERT INTO t1 VALUES (14, NULL);
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Got one of the listed errors
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connection default;
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SELECT a FROM t1 ORDER BY a;
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a
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1
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2
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3
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4
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10
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11
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12
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13
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14
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100
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101
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102
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*** Check that recovery works if we crashed early during rotate, before
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*** binlog checkpoint event could be written.
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SET GLOBAL max_binlog_size= 4096;
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SET GLOBAL innodb_flush_log_at_trx_commit= 1;
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RESET MASTER;
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INSERT INTO t1 VALUES (21, REPEAT("x", 4100));
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INSERT INTO t1 VALUES (22, REPEAT("x", 4100));
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INSERT INTO t1 VALUES (23, REPEAT("x", 4100));
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SET SESSION debug_dbug="+d,crash_before_write_checkpoint_event";
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INSERT INTO t1 VALUES (24, REPEAT("x", 4100));
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Got one of the listed errors
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SELECT a FROM t1 ORDER BY a;
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a
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1
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2
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3
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4
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10
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11
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12
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13
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14
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21
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22
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23
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24
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100
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101
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102
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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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master-bin.000005 #
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include/show_binlog_events.inc
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Log_name Pos Event_type Server_id End_log_pos Info
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master-bin.000004 # Format_desc # # SERVER_VERSION, BINLOG_VERSION
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master-bin.000004 # Start_encryption # #
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master-bin.000004 # Gtid_list # # [#-#-#]
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master-bin.000004 # Binlog_checkpoint # # master-bin.000003
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master-bin.000004 # Binlog_checkpoint # # master-bin.000004
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master-bin.000004 # Gtid # # BEGIN GTID #-#-#
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master-bin.000004 # Annotate_rows # # INSERT INTO t1 VALUES (24, REPEAT("x", 4100))
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master-bin.000004 # Table_map # # table_id: # (test.t1)
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master-bin.000004 # Write_rows_v1 # # table_id: # flags: STMT_END_F
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master-bin.000004 # Xid # # COMMIT /* XID */
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master-bin.000004 # Rotate # # master-bin.000005;pos=POS
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connection default;
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DROP TABLE t1;
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