metadata(connection, getDatabase(database_name).getMetadataPath() + "/.metadata",mysql_database_name, opened_transaction, mysql_version); if (!metadata.need_dumping_tables.empty()) { binlog_position,metadata.binlog_file, metadata.executed_gtid_set); metadata.transaction(position, [&]() { cleanOutdatedTables(database_name, global_context); metadata(connection, getDatabase(database_name).getMetadataPath() + "/.metadata",mysql_database_name, opened_transaction, mysql_version); if (!metadata.need_dumping_tables.empty()) {

get_payload());! 63! 64 switch (message_type)! 65 {! 66 case Plugin_gcs_message::CT_TRANSACTION_MESSAGE:! 67 handle_transactional_message(message);! 68 break;! 69 �� pply_data_packet��! Certification_handler::handle_event ����! Certification_handler::handle_transaction_id! Certifier::certify����! Wait_ticket->releaseTicket���������������! applier_thread_handle����

Row-based Replication • Multi-source Replication • Time-delayed Replication • Global Transaction IDs MySQL NDB Cluster • 99.999% Availability • Distributed architecture • Synchronous

have failures © 2018 Percona. 34 Long Transactions © 2018 Percona. 35 Queries from bad Transaction © 2018 Percona. 36 Anyone dumping a lot of data ? © 2018 Percona. 37 Want Processed Logs

ensure no stale reads Built in Fail-Over Built-in Node Provisioning © 2018 Percona. 44 Transaction Commit Flow © 2018 Percona. 45 PXC 5.7 Performance Improvements http://bit.ly/2qGCr0T and

Cluster 'LIS' is available - Refreshing replication account of demoted cluster - Synchronizing transaction backlog at 127.0.0.1:4442 - Updating metadata - Updating topology -- Changing replication

and tpcc‐mysql TPC‐C is an OLTP industry standard benchmark developed and maintained by the Transaction Processing Performance Council (TPC) [www.tpc.org]. It is widely used and well understood, which