Modifying Details of a DCS Instance

Function

This API is used to modify the information about a DCS instance, including the instance name, description, port, backup policy, start and end time of the maintenance window, and security group.

URI

PUT /v2/{project_id}/instances/{instance_id}

**Table 1** Path Parameters
Parameter	Mandatory	Type	Description
instance_id	Yes	String	Instance ID.
project_id	Yes	String	Project ID. For details, see Obtaining a Project ID.

Request Parameters

**Table 2** Request body parameters
Parameter	Mandatory	Type	Description
name	No	String	Instance name. An instance name can contain letters, digits, underscores (_), and hyphens (-) and must start with a letter. When you create only one instance at a time, the value of this parameter can contain 4 to 64 characters. When you create multiple instances at a time, the value of this parameter can contain 4 to 56 characters. The instances are named in the format of custom name-n, where n starts from 000 and is incremented by 1. For example, if you create two instances and set the custom name to dcs_demo, the two instances are respectively named dcs_demo-000 and dcs_demo-001.
description	No	String	Instance description. The description can contain a maximum of 1024 characters. NOTE: The backslash (\) and quotation mark (") are special characters for JSON messages. When using these characters in a parameter value, add the escape character (\) before the characters, for example, \\ and \". Minimum: 0 Maximum: 1024
port	No	Integer	Port for connecting to the Redis instance. The port range is from 1 to 65535. After the port is changed, all connections to the Redis instance are interrupted, and services must connect to the new port. Only DCS Redis 4.0 and later instances support port change. DCS Memcached instances do not support port change. Minimum: 1 Maximum: 65535
rename_commands	No	RenameCommandResp object	Command renaming list.
maintain_begin	No	String	UTC time when the maintenance time window starts. The format is HH:mm:ss. Listing Maintenance Time Windows. For example, the start time must be 18:00:00, 19:00:00, and so on. The start time and end time must be set in pairs. If the start time is left blank, the end time must also be left blank.
maintain_end	No	String	The start time and end time of the maintenance window must be within the time segment of a supported maintenance window. For details, see Listing Maintenance Time Windows. The end time is one hour later than the start time. For example, if the start time is 18:00:00, the end time is 19:00:00. The start time and end time must be set in pairs. If the end time is left blank, the start time must also be left blank.
security_group_id	No	String	Security group ID. The value can be obtained from the VPC console or the API used to query the security group list. This parameter is supported only by DCS Redis 3.0 and Memcached instances.
instance_backup_policy	No	BackupPolicy object	Backup policy. This parameter is supported when the instance type is master/standby or cluster.

**Table 3** RenameCommandResp
Parameter	Mandatory	Type	Description
command	No	String	Command COMMAND.
flushall	No	String	Command FLUSHALL.
flushdb	No	String	Command FLUSHDB.
hgetall	No	String	Command HGETALL.
keys	No	String	Command KEYS.

**Table 4** BackupPolicy
Parameter	Mandatory	Type	Description
backup_type	Yes	String	Backup type. auto: automatic backup manual: manual backup
save_days	No	Integer	This parameter is mandatory when backup_type is set to manual. Retention period, in days. The value ranges from 1 to 7. The automatic backup policy is retained when automatic backup is switched to manual backup.
periodical_backup_plan	No	BackupPlan object	Backup schedule. This parameter is mandatory when backup_type is set to manual. The automatic backup policy is retained when automatic backup is switched to manual backup.

**Table 5** BackupPlan
Parameter	Mandatory	Type	Description
timezone_offset	No	String	Time zone in which backup is performed. This parameter is no longer used.
backup_at	Yes	Array of integers	Day in a week on which backup starts. The value ranges from 1 to 7, where 1 indicates Monday, and 7 indicates Sunday. The automatic backup policy is retained when automatic backup is switched to manual backup.
period_type	Yes	String	Interval at which backup is performed, which supports only weekly currently. The automatic backup policy is retained when automatic backup is switched to manual backup.
begin_at	Yes	String	UTC time when the backup starts. For example, 00:00-01:00 indicates that the backup starts at 00:00 (UTC time). The value must be on the hour. The backup interval is 1 hour. The automatic backup policy is retained when automatic backup is switched to manual backup.

Response Parameters

None

Example Requests

Changing the name of a specified instance to dcs002 and port to 6379, and configuring an auto backup policy

PUT https://{dcs_endpoint}/v2/{project_id}/instance/{instance_id}

{
  "name" : "dcs002",
  "description" : "instance description",
  "port" : 6379,
  "maintain_begin" : "18:00:00",
  "maintain_end" : "19:00:00",
  "security_group_id" : "18e9309f-f81a-4749-bb21-f74576292162",
  "instance_backup_policy" : {
    "backup_type" : "auto",
    "save_days" : "1,",
    "periodical_backup_plan" : {
      "backup_at" : [ "1", "2", "3", "4", "6", "7" ],
      "period_type" : "weekly",
      "begin_at" : "00:00-01:00"
    }
  }
}