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 vtdataroot to store vttablet/mysql files. Defaults to being generated by the tablet uid. tablet_manager_protocol string the protocol to use to talk to vttablet (default “grpc”) tablet_uid uint tablet uid

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 server certificate -tablet_manager_grpc_ca string the server ca to use to validate servers when connecting -tablet_manager_grpc_cert string the cert to use to connect -tablet_manager_grpc_key string the key

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 to the QueryServiceControl list All other members of TabletManager seem unaffected. The tablet manager API will be extended for cases where requests are specific to a tablet id. For example, GetSchema list of all currently active queries by extending StreamQueryList. During a shutdown, the state manager will use this list to kill all active queries if shutdown_grace_period is hit. This, along with the

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 to the QueryServiceControl list All other members of TabletManager seem unaffected. The tablet manager API will be extended for cases where requests are specific to a tablet id. For example, GetSchema list of all currently active queries by extending StreamQueryList. During a shutdown, the state manager will use this list to kill all active queries if shutdown_grace_period is hit. This, along with the

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 to the QueryServiceControl list All other members of TabletManager seem unaffected. The tablet manager API will be extended for cases where requests are specific to a tablet id. For example, GetSchema list of all currently active queries by extending StreamQueryList. During a shutdown, the state manager will use this list to kill all active queries if shutdown_grace_period is hit. This, along with the

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 OnlineDDL & VTTablet state manager . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 48 General operations 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 behind onlineddl.Executor and, in particular, the scheduling aspect. OnlineDDL & VTTablet state manager onlineddl.Executor runs on PRIMARY tablets. It Opens when a tablet turns primary, and Closes when

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 command This error occurs if the command is not called with exactly 2 arguments. • no workflow.Manager registered WorkflowCreate Creates the workflow with the provided parameters. The workflow is also

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 command This error occurs if the command is not called with exactly 2 arguments. • no workflow.Manager registered WorkflowCreate Creates the workflow with the provided parameters. The workflow is also