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| author | Andrei Elkin <andrei.elkin@mariadb.com> | 2017-07-02 19:45:04 +0300 |
|---|---|---|
| committer | Monty <monty@mariadb.org> | 2017-07-02 19:47:30 +0300 |
| commit | 946a07e8a85c5553b3906b46052b8044cb70a480 (patch) | |
| tree | 67678cd3b1665369313ec69ecb1871e59a228dbf /mysql-test/suite/rpl/r | |
| parent | 46d6f74c4892e0e2952d129888c34b61b66ba350 (diff) | |
| download | mariadb-git-946a07e8a85c5553b3906b46052b8044cb70a480.tar.gz | |
Fix for MDEV-9670 server_id mysteriously set to 0
Problem was that in a circular replication setup the master remembers
position to events it has generated itself when reading from a slave.
If there are no new events in the queue from the slave, a
Gtid_list_log_event is generated to remember the last skipped event.
The problem happens if there is a network delay and we generate a
Gtid_list_log_event in the middle of the transaction, in which case there
will be an implicit comment and a new transaction with serverid=0 will be
logged.
The fix was to not generate any Gtid_list_log_events in the middle of a
transaction.
Diffstat (limited to 'mysql-test/suite/rpl/r')
| -rw-r--r-- | mysql-test/suite/rpl/r/circular_serverid0.result | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/mysql-test/suite/rpl/r/circular_serverid0.result b/mysql-test/suite/rpl/r/circular_serverid0.result new file mode 100644 index 00000000000..899b4bd343b --- /dev/null +++ b/mysql-test/suite/rpl/r/circular_serverid0.result @@ -0,0 +1,30 @@ +include/rpl_init.inc [topology=1->2->1] +include/rpl_connect.inc [creating M4] +include/rpl_connect.inc [creating M2] +SET @old_debug= @@global.debug; +STOP SLAVE; +SET GLOBAL debug_dbug= "+d,dbug.rows_events_to_delay_relay_logging"; +START SLAVE IO_THREAD; +include/wait_for_slave_io_to_start.inc +CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY, b VARCHAR(30000)) ENGINE=innodb; +INSERT INTO `t1` VALUES (null, repeat('a', 1024)), (null, repeat('b', 1024)); +SET debug_sync='now WAIT_FOR start_sql_thread'; +START SLAVE SQL_THREAD; +include/show_binlog_events.inc +Log_name Pos Event_type Server_id End_log_pos Info +slave-bin.000001 # Gtid # # GTID #-#-# +slave-bin.000001 # Query # # use `test`; CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY, b VARCHAR(30000)) ENGINE=innodb +SET debug_sync='now SIGNAL go_on_relay_logging'; +include/show_binlog_events.inc +Log_name Pos Event_type Server_id End_log_pos Info +slave-bin.000001 # Gtid # # GTID #-#-# +slave-bin.000001 # Query # # use `test`; CREATE TABLE t1 (a INT AUTO_INCREMENT PRIMARY KEY, b VARCHAR(30000)) ENGINE=innodb +slave-bin.000001 # Gtid # # BEGIN GTID #-#-# +slave-bin.000001 # Table_map # # table_id: # (test.t1) +slave-bin.000001 # Write_rows_v1 # # table_id: # +slave-bin.000001 # Write_rows_v1 # # table_id: # flags: STMT_END_F +slave-bin.000001 # Xid # # COMMIT /* XID */ +drop table t1; +SET GLOBAL debug_dbug= @old_debug; +SET debug_sync='RESET'; +include/rpl_end.inc |