being responsive and fast to serve every query. The Topology Service must also support a Watch interface, to signal when certain conditions occur on a node. This is used, for instance, to know when the Replication Graph. If it is the master for a Shard, we update the global Shard record as well. Administration tools need to find the tablets for a given Keyspace / Shard. To retrieve this: • first we get complex, or has special requirements, we also support a ‘tee’ implementation of the topo service interface. It is defined in go/vt/topo/helpers/tee.go. It allows communicating to two topo services, and the

being responsive and fast to serve every query. The Topology Service must also support a Watch interface, to signal when certain conditions occur on a node. This is used, for instance, to know when the Replication Graph. If it is the master for a Shard, we update the global Shard record as well. Administration tools need to find the tablets for a given Keyspace / Shard. To retrieve this: • first we get complex, or has special requirements, we also support a ‘tee’ implementation of the topo service interface. It is defined in go/vt/topo/helpers/tee.go. It allows communicating to two topo services, and the

being responsive and fast to serve every query. The Topology Service must also support a Watch interface, to signal when certain conditions occur on a node. This is used, for instance, to know when the Replication Graph. If it is the master for a Shard, we update the global Shard record as well. Administration tools need to find the tablets for a given Keyspace / Shard. To retrieve this: • first we get complex, or has special requirements, we also support a ‘tee’ implementation of the topo service interface. It is defined in go/vt/topo/helpers/tee.go. It allows communicating to two topo services, and the

being responsive and fast to serve every query. The Topology Service must also support a Watch interface, to signal when certain conditions occur on a node. This is used, for instance, to know when the Replication Graph. If it is the master for a Shard, we update the global Shard record as well. Administration tools need to find the tablets for a given Keyspace / Shard. To retrieve this: • first we get complex, or has special requirements, we also support a ‘tee’ implementation of the topo service interface. It is defined in go/vt/topo/helpers/tee.go. It allows communicating to two topo services, and the

reserved pool are tied to a specific session and are closed when the session is closed. QueryService interface changes: • ReserveExecute: Reserve a connection, execute the set statements, and the query. • want to support a different backend. The plug-in package simply needs to implement the PushBackend interface of the stats package. For an example, you can see the OpenTSDB plugin. Once you’ve written the being responsive and fast to serve every query. The Topology Service must also support a Watch interface, to signal when certain conditions occur on a node. This is used, for instance, to know when the

reserved pool are tied to a specific session and are closed when the session is closed. QueryService interface changes: • ReserveExecute: Reserve a connection, execute the set statements, and the query. • keyspace. The plugin should implement the DBDDLPlugin interface, and be saved into a new file in the go/vt/vtgate/engine/ directory. type DBDDLPlugin interface { CreateDatabase(ctx context.Context , name string) want to support a different backend. The plug-in package simply needs to implement the PushBackend interface of the stats package. For an example, you can see the OpenTSDB plugin. Once you’ve written the

reserved pool are tied to a specific session and are closed when the session is closed. QueryService interface changes: • ReserveExecute: Reserve a connection, execute the set statements, and the query. • keyspace. The plugin should implement the DBDDLPlugin interface, and be saved into a new file in the go/vt/vtgate/engine/ directory. type DBDDLPlugin interface { CreateDatabase(ctx context.Context , name string) want to support a different backend. The plug-in package simply needs to implement the PushBackend interface of the stats package. For an example, you can see the OpenTSDB plugin. Once you’ve written the

reserved pool are tied to a specific session and are closed when the session is closed. QueryService interface changes: • ReserveExecute: Reserve a connection, execute the set statements, and the query. • keyspace. The plugin should implement the DBDDLPlugin interface, and be saved into a new file in the go/vt/vtgate/engine/ directory. type DBDDLPlugin interface { CreateDatabase(ctx context.Context , name string) want to support a different backend. The plug-in package simply needs to implement the PushBackend interface of the stats package. For an example, you can see the OpenTSDB plugin. Once you’ve written the

can. VTAdmin consists of two components: 1. A web interface - VTAdmin-web 2. A server - VTAdmin-api 5 Vitess Security Audit, 2023 The web interface connects to the server which in turn forwards the have a default authenticator, so users are required to implement their own via the Authenticator interface: https://github.com/vitessio/vitess/blob/da1906d54eaca4447e039d90b96fb07251ae852c/g o/vt/vtadmi base, but they are still relevant for VTAdmin. In fact, during the auditing of the VTAdmin web interface, Ada Logics found two vulnerabilities with root cause at the topology level that were triggerable

such comment-style options in undesirable locations like strings and similar. • The web interface was probed for XSS and other general web application flaws without any weaknesses being discovered