CustomPolicyLbPersistenceProfile
Some applications maintain state and require all relevant connections to be sent to the same server as the application state is not synchronized among servers. Persistence is enabled on a PolicyLbVirtualServer by binding a persistence profile to it.
Properties
| Required | Property Name | Type | Description |
|---|---|---|---|
| optional | _create_time | integer |
Timestamp of resource creation |
| optional | _create_user | string |
ID of the user who created this resource |
| optional | _last_modified_time | integer |
Timestamp of last modification |
| optional | _last_modified_user | string |
ID of the user who last modified this resource |
| optional | _links | array of ResourceLink |
The server will populate this field when returing the resource. Ignored on PUT and POST. |
| optional | _protection | string |
Protection status is one of the following: PROTECTED - the client who retrieved the entity is not allowed to modify it. NOT_PROTECTED - the client who retrieved the entity is allowed to modify it REQUIRE_OVERRIDE - the client who retrieved the entity is a super user and can modify it, but only when providing the request header X-Allow-Overwrite=true. UNKNOWN - the _protection field could not be determined for this entity. |
| optional | _revision | integer |
The _revision property describes the current revision of the resource. To prevent clients from overwriting each other’s changes, PUT operations must include the current _revision of the resource, which clients should obtain by issuing a GET operation. If the _revision provided in a PUT request is missing or stale, the operation will be rejected. |
| optional | _schema | string |
Schema for this resource |
| optional | _self | SelfResourceLink |
Link to this resource |
| optional | _system_owned | boolean |
Indicates system owned resource |
| optional | children | array of ChildPolicyConfigResource |
subtree for this type within policy tree containing nested elements. |
| optional | description | string |
Description of this resource |
| optional | display_name | string |
Defaults to ID if not set |
| optional | id | string |
Unique identifier of this resource |
| optional | marked_for_delete | boolean |
Intent objects are not directly deleted from the system when a delete is invoked on them. They are marked for deletion and only when all the realized entities for that intent object gets deleted, the intent object is deleted. Objects that are marked for deletion are not returned in GET call. One can use the search API to get these objects. |
| optional | parent_path | string |
Path of its parent |
| optional | path | string |
Absolute path of this object |
| optional | persistence | string |
This field indicates the persistence method used for the PolicyLbVirtualServer. - COOKIE persistence allows related client connections, identified by the same cookie in HTTP requests [Refer to HTTP Cookie for details on HTTP cookies], to be redirected to the same server. Load balancer does not maintain any persistence table for cookie persistence. Instead, it encodes the necessary information in the HTTP cookie value sent to client and relies on the client to store it and send it back in subsequent related HTTP requests. Hence there is no limit on the number of cookie persistence entries that can be supported. - SOURCE_IP persistence ensures all connections from a client (identified by IP address) are sent to the same backend server for a specified period. - This object is not required and without creation of this object the virtual server persistence is disabled by default |
| optional | persistence_shared | boolean |
Persistence shared setting indicates that all PolicyLbVirtualServers that consume this PolicyLbPersistenceProfile should share the same persistence mechanism when enabled. Meaning, persistence entries of a client accessing one virtual server will also affect the same client’s connections to a different virtual server. For example, say there are two virtual servers vip-ip1:80 and vip-ip1:8080 bound to the same Group g1 consisting of two servers (s11:80 and s12:80). By default, each virtual server will have its own persistence table or cookie. So, in the earlier example, there will be two tables (vip-ip1:80, p1) and (vip-ip1:8080, p1) or cookies. So, if a client connects to vip1:80 and later connects to vip1:8080, the second connection may be sent to a different server than the first. When persistence_shared is enabled, then the second connection will always connect to the same server as the original connection. For COOKIE persistence type, the same cookie will be shared by multiple virtual servers. For SOURCE_IP persistenct type, the persistence table will be shared across virtual servers. |
| optional | relative_path | string |
Path relative from its parent |
| optional | resource_type | string |
The type of this resource. |
| optional | tags | array of Tag |
Opaque identifiers meaningful to the API user |
