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Problem:- Gtid are not transferred in Galera Cluster.
Solution:- We need to transfer gtid in the case on either when cluster is
slave/master in async replication. In normal Gtid replication gtid are generated on
recieving node itself and it is always on sync with other nodes. Because galera keeps
node in sync , So all nodes get same no of event groups. So the issue arises when
say galera is slave in async replication.
A
| (Async replication)
D <-> E <-> F {Galera replication}
So what should happen is that all node should apply the master gtid but this does
node happen, becuase node E, F does not recieve gtid from D in write set , So what E(or F)
does is that it applies wsrep_gtid_domain_id, D server-id , E gtid next seq no. This
generated gtid does not always work when say A has different domain id.
So In this commit, on galera node when we see that this event is recieved from master
we simply write Gtid_Log_Event in write_set and send it to other nodes.
232 lines
6.0 KiB
Plaintext
232 lines
6.0 KiB
Plaintext
cluster 1 node 1
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SHOW STATUS LIKE 'wsrep_cluster_size';
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Variable_name Value
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wsrep_cluster_size 3
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cluster 1 node 2
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SHOW STATUS LIKE 'wsrep_cluster_size';
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Variable_name Value
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wsrep_cluster_size 3
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cluster 1 node 3
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SHOW STATUS LIKE 'wsrep_cluster_size';
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Variable_name Value
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wsrep_cluster_size 3
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cluster 2 node 1
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SHOW STATUS LIKE 'wsrep_cluster_size';
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Variable_name Value
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wsrep_cluster_size 3
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cluster 2 node 2
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SHOW STATUS LIKE 'wsrep_cluster_size';
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Variable_name Value
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wsrep_cluster_size 3
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cluster 2 node 3
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SHOW STATUS LIKE 'wsrep_cluster_size';
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Variable_name Value
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wsrep_cluster_size 3
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change master to master_host='127.0.0.1', master_user='root', master_port=NODE_MYPORT_4, master_use_gtid=current_pos, ignore_server_ids=(12,13);;
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start slave;
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include/wait_for_slave_to_start.inc
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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select @@gtid_slave_pos;
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@@gtid_slave_pos
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change master to master_host='127.0.0.1', master_user='root', master_port=NODE_MYPORT_1, master_use_gtid=current_pos, ignore_server_ids=(22,23);;
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start slave;
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include/wait_for_slave_to_start.inc
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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select @@gtid_slave_pos;
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@@gtid_slave_pos
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cluster 1 node 1
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create table t1 (cluster_domain_id int ,node_server_id int, seq_no int);
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insert into t1 values (1, 11, 2);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 2 node 1
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2
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insert into t1 values (2, 21, 1);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,2-21-1
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select * from t1;
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cluster_domain_id node_server_id seq_no
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1 11 2
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2 21 1
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 1 node 2
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,2-21-1
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insert into t1 values (1, 12, 3);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,1-12-3,2-21-1
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 1 node 3
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,1-12-3,2-21-1
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insert into t1 values (1, 13, 4);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 2 node 2
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1
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insert into t1 values (2, 22, 2);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2
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#wait for sync cluster 2 and 1
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 2 node 3
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2
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insert into t1 values (2, 23, 3);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2,2-23-3
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#wait for sync cluster 2 and 1
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 1 node 1
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2,2-23-3
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drop table t1;
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stop slave;
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reset slave;
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change master to master_use_gtid=no, ignore_server_ids=();
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reset master;
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set global GTID_SLAVE_POS="";
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cluster 2 node 1
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stop slave;
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reset slave;
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change master to master_use_gtid=no, ignore_server_ids=();
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reset master;
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set global GTID_SLAVE_POS="";
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reset master;
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reset master;
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reset master;
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reset master;
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change master to master_host='127.0.0.1', master_user='root', master_port=NODE_MYPORT_6, master_use_gtid=current_pos, ignore_server_ids=(12,13);;
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start slave;
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include/wait_for_slave_to_start.inc
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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select @@gtid_slave_pos;
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@@gtid_slave_pos
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change master to master_host='127.0.0.1', master_user='root', master_port=NODE_MYPORT_3, master_use_gtid=current_pos, ignore_server_ids=(22,23);;
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start slave;
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include/wait_for_slave_to_start.inc
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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select @@gtid_slave_pos;
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@@gtid_slave_pos
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cluster 1 node 1
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create table t1 (cluster_domain_id int ,node_server_id int, seq_no int);
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insert into t1 values (1, 11, 2);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 2 node 1
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insert into t1 values (2, 21, 1);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,2-21-1
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select * from t1;
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cluster_domain_id node_server_id seq_no
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1 11 2
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2 21 1
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 1 node 2
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,2-21-1
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insert into t1 values (1, 12, 3);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,1-12-3,2-21-1
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 1 node 3
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-11-2,1-12-3,2-21-1
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insert into t1 values (1, 13, 4);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1
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#wait for sync cluster 1 and 2
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 2 node 2
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1
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insert into t1 values (2, 22, 2);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2
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#wait for sync cluster 2 and 1
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 2 node 3
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2
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insert into t1 values (2, 23, 3);
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2,2-23-3
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#wait for sync cluster 2 and 1
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include/save_master_gtid.inc
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include/sync_with_master_gtid.inc
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cluster 1 node 1
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select @@gtid_binlog_state;
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@@gtid_binlog_state
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1-12-3,1-11-2,1-13-4,2-21-1,2-22-2,2-23-3
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drop table t1;
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stop slave;
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change master to master_use_gtid=no, ignore_server_ids=();
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reset master;
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set global GTID_SLAVE_POS="";
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cluster 2 node 1
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stop slave;
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change master to master_use_gtid=no, ignore_server_ids=();
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reset master;
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set global GTID_SLAVE_POS="";
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reset master;
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reset master;
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reset master;
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reset master;
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