InstanceGroup（实例组）
更新时间：2022-05-18
查询实例组列表
如下代码可根据集群ID获取其实例组信息：
Python
1 try:
2 response = bmr_client.list_instance_groups(cluster_id)
3 for instance_group in response.instance_groups:
4 LOG.debug('list instance groups %s: %s' % (instance_group.id, instance_group))
5except BceHttpClientError as e:
6 if isinstance(e.last_error, BceServerError):
7 LOG.error('list_instance_groups failed. Response %s, code: %s, msg: %s'
8 % (e.last_error.status_code, e.last_error.code, e.last_error.args))
9 else:
10 LOG.error('list_instance_groups failed. Unknown exception: %s' % e)修改实例组配置
BMR支持对CORE、TASK节点进行配置变更，示例代码如下：
Python
1 try:
2 instance_group_config_core = instancegroup_config(core_instance_id, core_instance_count + 1)
3 instance_group_config_task = instancegroup_config(task_instance_id, task_instance_count + 1)
4 instance_group_config_client = instancegroup_config(client_instance_id, client_instance_count + 1)
5 bmr_client.scale_cluster(cluster_id, instance_group_config=[instance_group_config_core, instance_group_config_task, instance_group_config_client])
6except BceHttpClientError as e:
7 if isinstance(e.last_error, BceServerError):
8 LOG.error('scale_cluster failed. Response %s, code: %s, msg: %s'
9 % (e.last_error.status_code, e.last_error.code, e.last_error.args))
10 else:
11 LOG.error('scale_cluster failed. Unknown exception: %s' % e)