示例：混合使用默认参数组和自定义参数组，将主要版本从 1.1.1.0 升级到 1.2.0.2 - Amazon Neptune
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示例：混合使用默认参数组和自定义参数组，将主要版本从 1.1.1.0 升级到 1.2.0.2

找到要升级的 DBCluster，以及用于创建数据库集群的模板。例如：

Description: Base Template to create Neptune Stack with Engine Version 1.1.1.0 using custom Parameter Groups 
Parameters:
  DbInstanceType:
    Description: Neptune DB instance type
    Type: String
    Default: db.r5.large
Resources:
  NeptuneDBClusterParameterGroup:
    Type: 'AWS::Neptune::DBClusterParameterGroup'
    Properties:
      Family: neptune1
      Description: 'NeptuneDBClusterParameterGroup with family neptune1'
      Parameters:
        neptune_enable_audit_log: 0
  NeptuneDBParameterGroup:
    Type: 'AWS::Neptune::DBParameterGroup'
    Properties:
      Family: neptune1
      Description: 'NeptuneDBParameterGroup with family neptune1'
      Parameters:
        neptune_query_timeout: 20000
  NeptuneDBCluster:
    Type: 'AWS::Neptune::DBCluster'
    Properties:
      EngineVersion: 1.1.1.0
      DBClusterParameterGroupName:
        Ref: NeptuneDBClusterParameterGroup
    DependsOn:
      - NeptuneDBClusterParameterGroup
  CustomNeptuneDBInstance:
    Type: 'AWS::Neptune::DBInstance'
    Properties:
      DBClusterIdentifier:
        Ref: NeptuneDBCluster
      DBInstanceClass:
        Ref: DbInstanceType
      DBParameterGroupName:
        Ref: NeptuneDBParameterGroup
    DependsOn:
      - NeptuneDBCluster
      - NeptuneDBParameterGroup
  DefaultNeptuneDBInstance:
    Type: 'AWS::Neptune::DBInstance'
    Properties:
      DBClusterIdentifier:
        Ref: NeptuneDBCluster
      DBInstanceClass:
        Ref: DbInstanceType
    DependsOn:
      - NeptuneDBCluster
Outputs:
  DBClusterId:
    Description: Neptune Cluster Identifier
    Value:
      Ref: NeptuneDBCluster

  • 对于自定义集群参数组，请将 DBClusterParameterGroup 系列更新为对应于新引擎版本（即 neptune1.2）的系列。

  • 对于默认集群参数组，请将 DBClusterParameterGroup 更新为与新引擎版本（即 default.neptune1.2）相对应的默认参数组。

  • 对于附加到 DBCluster 的每个 DBInstance，将默认 DBParameterGroup 更新为新引擎版本（此处为 default.neptune1.2）所使用的系列中的参数组，并将自定义参数组更新为使用由新引擎版本（此处为 neptune1.2）支持的系列的参数组。

  • 将 DBInstanceParameterGroupName 属性设置为新引擎版本支持的系列中的参数组。

模板应该如下所示：

Description: Template to update Neptune Stack to Engine Version 1.2.0.1 using custom and default Parameter Groups 
Parameters:
  DbInstanceType:
    Description: Neptune DB instance type
    Type: String
    Default: db.r5.large
Resources:
  NeptuneDBClusterParameterGroup:
    Type: 'AWS::Neptune::DBClusterParameterGroup'
    Properties:
      Family: neptune1.2
      Description: 'NeptuneDBClusterParameterGroup with family neptune1.2'
      Parameters:
        neptune_enable_audit_log: 0
  NeptuneDBParameterGroup:
    Type: 'AWS::Neptune::DBParameterGroup'
    Properties:
      Family: neptune1.2
      Description: 'NeptuneDBParameterGroup1 with family neptune1.2'
      Parameters:
        neptune_query_timeout: 20000
  NeptuneDBCluster:
    Type: 'AWS::Neptune::DBCluster'
    Properties:
      EngineVersion: 1.2.0.2
      DBClusterParameterGroupName:
        Ref: NeptuneDBClusterParameterGroup
      DBInstanceParameterGroupName: default.neptune1.2
    DependsOn:
      - NeptuneDBClusterParameterGroup
  CustomNeptuneDBInstance:
    Type: 'AWS::Neptune::DBInstance'
    Properties:
      DBClusterIdentifier:
        Ref: NeptuneDBCluster
      DBInstanceClass:
        Ref: DbInstanceType
      DBParameterGroupName:
        Ref: NeptuneDBParameterGroup
    DependsOn:
      - NeptuneDBCluster
      - NeptuneDBParameterGroup
  DefaultNeptuneDBInstance:
    Type: 'AWS::Neptune::DBInstance'
    Properties:
      DBClusterIdentifier:
        Ref: NeptuneDBCluster
      DBInstanceClass:
        Ref: DbInstanceType
      DBParameterGroupName: default.neptune1.2
    DependsOn:
      - NeptuneDBCluster
Outputs:
  DBClusterId:
    Description: Neptune Cluster Identifier
    Value:
      Ref: NeptuneDBCluster

现在使用 Amazon CloudFormation 来运行修改后的模板。