This week on the podcast, Dwayne chats with Marc Trouard-Riolle, about Nutanix Cloud Clusters (NC2) on Azure and how to get started. Nutanix Cloud Clusters (NC2) on Microsoft Azure enables your applications to be run where you want them, on-premises or in the public cloud, all operated as a single cloud.<\/p>

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问题

如何获取VM/主机/群集/等。API的统计数据批量？

  • 2019年10月31日
  • 4个答复
  • 2011年观点
m

你好，

有什么方法可以获取VM/主机/群集/等。API的统计数据批量？

我们知道 /统计端点，但是这些端点只允许获得单个实体的统计数据，因此，如果群集中有数百个VM，则意味着对API的数百个单独的请求。我们真的不想仅仅通过投票统计数据来对集群施加很多压力。我们的默认轮询间隔为几分钟，因此使用投影=统计信息对我们真的不起作用（我认为它提供了当前价值），我们需要了解民意调查之间时间间隔的统计信息。

非常感谢您的时间。

此致，

马雷克

Hi,<\/p>

\u00a0<\/p>

is there a way how to get VM\/Host\/Cluster\/etc. statistics from API in bulk?<\/p>

\u00a0<\/p>

We know about the \/stats endpoints, but those only allow to get stats for single entity, so in case there are hundreds of VMs in cluster that would mean hundreds of separate requests to API. We don't really want to put lot of strain on the cluster just by polling stats. Our default polling interval is several minutes, so using projection=stats doesn't really work for us (as I believe it provides current value) and we'd need to know the stats for the time interval between our polls.<\/p>

\u00a0<\/p>

Thanks so much for your time.<\/p>

\u00a0<\/p>

Best regards,<\/p>

Marek<\/p>","quoteUsername":"MarekSWI","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

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4个答复

m
秩
UserLevel 3
徽章 +4

嗨，马雷克，

感谢您发布问题。为了更好地理解您的问题，您的问题有两个部分：

  1. 单个休息电话中多个实体的统计信息
  2. 在轮询间隔之间收集统计数据（您要在间隔之间共同汇总它们）吗？

您是否检查了我们的Nutanix.dev门户，该门户网站有示例通过REST API收集统计信息。如果您还没有，这是链接：

https://www.nutanix.dev/2019/01/16/getting-performance-stats-with-the-nutanix-api-v2-0/

https://www.nutanix.dev/2019/09/23/getting-vm-performance-metrics-via-api/

此致

Hi Marek,<\/p>

thank you for posting your question. To better understand your question, \u00a0have two parts to your question:<\/p>

  1. stats for Multiple entities in a single rest call<\/li>\t
  2. Collecting stats between the polling intervals (are you going to co-relate\u00a0them between the intervals)?<\/li><\/ol>

    have you checked our nutanix.dev portal, which has examples for collecting stats via rest api. incase you haven\u2019t already, here\u2019s the link :
    \u00a0<\/p>

    https:\/\/www.nutanix.dev\/2019\/01\/16\/getting-performance-stats-with-the-nutanix-api-v2-0\/<\/a><\/p>

    https:\/\/www.nutanix.dev\/2019\/09\/23\/getting-vm-performance-metrics-via-api\/<\/a><\/p>

    Best regards<\/p>","quoteUsername":"Mutahir","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

m

嗨mutahir，

谢谢您的快速反应。

我已经检查了一切，但没有成功。是的，我们需要在一个响应中拥有一系列多个实体的统计数据。理想情况下，我们希望在一个响应中获得所有统计数据，而无需一个一个响应。

广告1）
目前，API V1仅提供例如以这种方式的VMS统计信息：

https：// {{cluster_ip}}：9440/prismgateway/services/rest/v1/vms/{{vm_uuid}}/stats/？量学

在哪里{{vm_uuid}}只是一个特定的UUID标识符。

但是我们需要获取统计数据对于所有散装的实体有一个请求和一个响应无需指定。至少我们需要能够在一个请求中指定一个实体数组，以获取一个包含大部分统计数据的响应。

广告2）

我们需要在轮询间隔之间具有统计数据，例如由于发现异常和不良状态（峰值和滴）。Nutanix API已经提供了我们需要的粒度，但只有一个每个实体的请求，这会导致大开销。

此致

Hi Mutahir,
\u00a0<\/p>

Thank you for the fast reaction.

I have checked everything what is possible with no success. Yes we need to have stats for an array of multiple entities as\u00a0bulk in one response.<\/strong> Ideally we would like to have all stats in one response without need to specify them one by one.

Ad 1)\u00a0
Currently the API V1 provides only e.g. VMs stats in this way:<\/p>

https:\/\/{{cluster_ip}}:9440\/PrismGateway\/services\/rest\/v1\/vms\/<\/a>{{vm_uuid}}<\/strong><\/a>\/stats\/?metrics={{vm_metric}}&startTimeInUsecs={{startTimeInUsecs}}

Where {{vm_uuid}}<\/strong><\/a>\u00a0<\/strong>is just one particular UUID identifier.

But we need to get stats for all entities as bulk<\/strong> with one request and one response\u00a0without need to specify them.\u00a0At least we need\u00a0to be able to specify an array of entities in one request to get one response containing the bulk of stats.<\/p>

Ad 2 )<\/p>

We need to have stats between the polling intervals e.g. due to a detection of anomalies and unwanted states (peaks and drops). The Nutanix API already provides the granularity that we need but only with one request per entity which causes big performance overhead.<\/p>

\u00a0<\/p>

Best regards
\u00a0<\/p>","quoteUsername":"MarekSWI","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

阿罗纳
秩
UserLevel 6
徽章 +5

@marekswi

可能有一个更好的解决方案，但是在类似情况下我必须要做的是首先构建一系列UUID，然后在循环中对阵列中的每个UUID进行查询统计数据，同时将统计数据记录到另一个数组中。

那有意义吗？

@MarekSWI<\/user-mention>\u00a0<\/p>

There may a better solution out there but what I had to do in a similar situation was to build an array of UUIDs first, then query stats for each of UUIDs in the array in a loop while recording stats into another array.<\/p>

Does that make sense?<\/p>

\u00a0<\/p>","quoteUsername":"Alona","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">

hitesh0801
秩
UserLevel 4
徽章 +5

@marekswi

只是一个随机的想法，我们可以尝试使用Python或JS中的多线程来调用多个API调用，以便执行时间减少。

希望这可以帮助 ！
@MarekSWI<\/user-mention>\u00a0\u00a0

Just a random idea, we can try to use multi-threading either in python or JS to invoke multiple API calls so the execution time decreases.\u00a0
\u00a0<\/p>","quoteUsername":"HITESH0801","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
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