queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string, represents the user connecting to Vitess recall it later when needed. Typically, the Primary Vindex is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, one could also choose routing a query, the Vindex with the lowest cost is chosen. The current costs are: Vindex Type Cost Identity 0 Functional 1 Lookup Unique 10 Lookup NonUnique 20 Select In the case of a simple select, Vitess

an identity vindex: "identity": { "type": "binary" } Then we create it as a vindex on the lookup table: "customer_lookup": { "column_vindexes": [ { "column": "keyspace_id", "name": "identity" } throttler. API & usage Applicaitons use the API /throttler/check. • Applications may indicate their identity via ?app= parameter. • Applications may also declare themselves to be low priority via ?p=low queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string representing the user connecting to Vitess

104 API & usage Applicaitons use the API /throttler/check. • Applications may indicate their identity via ?app= parameter. • Applications may also declare themselves to be low priority via ?p=low queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string representing the user connecting to Vitess cross-shard indexes. Typically, the Primary Vindex for a table is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, other algorithms like

specific tablet and only wish to maintain the health of that tablet. • Applications may indicate their identity via ?app= parameter. • Applications may also declare themselves to be low priority via ?p=low queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string representing the user connecting to Vitess cross-shard indexes. Typically, the Primary Vindex for a table is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, other algorithms like

specific tablet and only wish to maintain the health of that tablet. • Applications may indicate their identity via ?app= parameter. • Applications may also declare themselves to be low priority via ?p=low queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string representing the user connecting to Vitess cross-shard indexes. Typically, the Primary Vindex for a table is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, other algorithms like

queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string, represents the user connecting to Vitess recall it later when needed. Typically, the Primary Vindex is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, one could also choose following predefined Vindexes: Name Type Description Primary Reversible Cost binary Functional Unique Identity Yes Yes 0 binary_md5 Functional Unique md5 hash Yes No 1 hash Functional Unique 3DES null-key

queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string, represents the user connecting to Vitess recall it later when needed. Typically, the Primary Vindex is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, one could also choose following predefined Vindexes: Name Type Description Primary Reversible Cost binary Functional Unique Identity Yes Yes 0 binary_md5 Functional Unique md5 hash Yes No 1 hash Functional Unique 3DES null-key

specific tablet and only wish to maintain the health of that tablet. • Applications may indicate their identity via ?app= parameter. • Applications may also declare themselves to be low priority via ?p=low queries. There are two different Caller IDs: • Immediate Caller ID: It represents the secure client identity when it enters the Vitess side: – It is a single string representing the user connecting to Vitess cross-shard indexes. Typically, the Primary Vindex for a table is Functional. In some cases, it is the identity function where the input value yields itself as the keyspace id. However, other algorithms like

Users that have not been granted any permissions and that the Vitess cluster admin does not know the identity of. No Limited access users Users that have been granted some RBAC permissions but not others