this mode, you may issue the following command before executing your query: set workload='olap' You can also set the workload to dba mode, which allows you to override the implicit timeouts that exist in for any identical requests received while the in-flight query was still executing. – Transaction manager – Limit number of concurrent transactions and manage deadlines to optimize overall throughput. • Consul). Concretely, the Topology Service handles two functions: it is both a distributed lock manager and a repository for topology metadata. In earlier versions of Vitess, the Topology Serice was also

VitessAware transaction_read_only VitessAware sql_select_limit VitessAware transaction_mode VitessAware workload VitessAware charset VitessAware names VitessAware big_tables NoOp bulk_insert_buffer_size NoOp debug this mode, you may issue the following command before executing your query: set workload='olap' You can also set the workload to dba mode, which allows you to override the implicit timeouts that exist in for any identical requests received while the in-flight query was still executing. – Transaction manager – Limit number of concurrent transactions and manage deadlines to optimize overall throughput. •

VitessAware transaction_read_only VitessAware sql_select_limit VitessAware transaction_mode VitessAware workload VitessAware charset VitessAware names VitessAware big_tables NoOp bulk_insert_buffer_size NoOp debug _vt_PURGE_6ace8bcef73211ea87e9f875a4d24e90_20200916080539. Vitess purges (or will purge, based on workload and prior engagements) rows from PURGE tables. Data is lost and the user may not resurrect the table better way to specify flags: the existing approach of command line flags may not scale. • A tablet manager that can represent multiple tablet ids. Other parts of TabletServer have already been modified to

VitessAware transaction_read_only VitessAware sql_select_limit VitessAware transaction_mode VitessAware workload VitessAware charset VitessAware names VitessAware enable_system_settings VitessAware big_tables _vt_PURGE_6ace8bcef73211ea87e9f875a4d24e90_20200916080539. Vitess purges (or will purge, based on workload and prior engagements) rows from PURGE tables. Data is lost and the user may not resurrect the table better way to specify flags: the existing approach of command line flags may not scale. • A tablet manager that can represent multiple tablet ids. Other parts of TabletServer have already been modified to

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 OnlineDDL & VTTablet state manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 General operations VitessAware transaction_read_only VitessAware sql_select_limit VitessAware transaction_mode VitessAware workload VitessAware 25 System variable Handled charset VitessAware names VitessAware big_tables NoOp Overview The DDL scheduler is a control plane that runs on a PRIMARY vttablet, as part of the state manager. It is responsible for identifying new migration requests, to choose and execute the next migration

VitessAware transaction_read_only VitessAware sql_select_limit VitessAware transaction_mode VitessAware workload VitessAware charset VitessAware names VitessAware big_tables NoOp bulk_insert_buffer_size NoOp debug _vt_PURGE_6ace8bcef73211ea87e9f875a4d24e90_20200916080539. Vitess purges (or will purge, based on workload and prior engagements) rows from PURGE tables. Data is lost and the user may not resurrect the table better way to specify flags: the existing approach of command line flags may not scale. • A tablet manager that can represent multiple tablet ids. Other parts of TabletServer have already been modified to

this mode, you may issue the following command before executing your query: set workload='olap' You can also set the workload to dba mode, which allows you to override the implicit timeouts that exist in for any identical requests received while the in-flight query was still executing. – Transaction manager – Limit number of concurrent transactions and manage deadlines to optimize overall throughput. • modifications are not required. OLAP Workload By default, Vitess sets some intentional restrictions on the execution time and number of rows that a query can return. This default workload mode is called OLTP. This

mode, you may issue the following command before executing your query: set workload='olap' 23 You can also set the workload to dba mode, which allows you to override the implicit timeouts that exist for any identical requests received while the in-flight query was still executing. – Transaction manager – Limit number of concurrent transactions and manage deadlines to optimize overall throughput. • modifications are not required. OLAP Workload By default, Vitess sets some intentional restrictions on the execution time and number of rows that a query can return. This default workload mode is called OLTP. This