Query from Power BI to AI suddenly fails with 502 Bad Gateway

0 votes

In Power BI (Desktop) we use a Power BI Query (M) to get data from Application Insights Analytics. We published the Power BI Report to Power BI online configured with a daily refresh. It worked fine until it stopped working on 25-1-2017 (UTC).

The error we get is:

DataSource.Error: Web.Contents failed to get contents from '.....' (502): Bad Gateway

This is the complete error:

DataSource.Error: Web.Contents failed to get contents from 'https://management.azure.com/subscriptions/<subscriptionId>/resourcegroups/fps.fsa/providers/microsoft.insights/components/4PS%20Field%20Service%20iOS%20-%20iOS/api/query?api-version=2014-12-01-preview&csl=customEvents%0A%7C%20where%20timestamp%20%3E%20ago%2830d%29%0A%7C%20order%20by%20timestamp%20desc%0A%7C%20extend%20dimensionUserId%20%3D%20tostring%28customDimensions.%5B%27userId%27%5D%29%0A%7C%20extend%20dimensionHost%20%3D%20tostring%28customDimensions.%5B%27url%27%5D%29%0A%7C%20extend%20measurementQuantity%20%3D%20iff%28%20isnotempty%28customMeasurements.%5B%27value%27%5D%29%2C%20todouble%28customMeasurements.%5B%27value%27%5D%29%2C%200.0%29%0A%7C%20extend%20measurementKey%20%3D%20tostring%28customDimensions.%5B%27key%27%5D%29%0A%7C%20extend%20platform%20%3D%20%27iOS%27%0A&x-ms-app=AAPBI' (502): Bad Gateway
Details:
    DataSourceKind=Web
    DataSourcePath=https://management.azure.com/subscriptions/<subscriptionId>/resourcegroups/fps.fsa/providers/microsoft.insights/components/4PS%20Field%20Service%20iOS%20-%20iOS/api/query
    Url=https://management.azure.com/subscriptions/<subscriptionId>/resourcegroups/fps.fsa/providers/microsoft.insights/components/4PS%20Field%20Service%20iOS%20-%20iOS/api/query?api-version=2014-12-01-preview&amp;csl=customEvents%0A%7C%20where%20timestamp%20%3E%20ago%2830d%29%0A%7C%20order%20by%20timestamp%20desc%0A%7C%20extend%20dimensionUserId%20%3D%20tostring%28customDimensions.%5B%27userId%27%5D%29%0A%7C%20extend%20dimensionHost%20%3D%20tostring%28customDimensions.%5B%27url%27%5D%29%0A%7C%20extend%20measurementQuantity%20%3D%20iff%28%20isnotempty%28customMeasurements.%5B%27value%27%5D%29%2C%20todouble%28customMeasurements.%5B%27value%27%5D%29%2C%200.0%29%0A%7C%20extend%20measurementKey%20%3D%20tostring%28customDimensions.%5B%27key%27%5D%29%0A%7C%20extend%20platform%20%3D%20%27iOS%27%0A&amp;x-ms-app=AAPBI

Does anyone know how to solve this?

Feb 9, 2022 in Power BI by surbhi
• 3,820 points
1,642 views

1 answer to this question.

0 votes

The AA Query frequently returns too much data, resulting in a 502 Bad Gateway Message. The gateway can only handle 8MB of data at a time.

Example
You built a dashboard that operated in December 2016 and provided you with all requests dating back to the beginning of the month. It's already January 2017, and it's failing miserably. Using a query like the one below, you utilise the PowerBI Dashboard to derive various metrics from the raw data.

requests | where timestamp > datetime(2016-12-01)

The solution
Decide how many days are important to you. Limiting the time range to this month AND only projecting the columns you need will help you cut out a lot of additional data if your goal is to obtain all requests and the timing from the first of the month.

requests | where timestamp > startofmonth(now()) | project name, duration

Another solution
If you're computing averages and percentiles, you could just let Analytics handle it and PowerBI display the results.

requests | where timestamp > startofmonth(now()) | summarize count(), avg(duration), min(duration), max(duration), stdev(duration), percentiles(duration, 50, 75, 90, 95, 99) by name

Empower Your Data Insights with Power BI Certification.

answered Feb 10, 2022 by CoolCoder
• 4,420 points

Related Questions In Power BI

+2 votes
3 answers

How to replace null values with custom values in Power BI(power query editor)?

Hi Nithin, To fill or replace the null or ...READ MORE

answered Mar 8, 2019 in Power BI by Cherukuri
• 33,030 points
159,379 views
0 votes
1 answer

Why should I shift from MS Excel to Power BI

There are a lot of advantages from ...READ MORE

answered Sep 26, 2018 in Power BI by Kalgi
• 52,350 points
707 views
0 votes
1 answer

How to publish .pbix report from power bi desktop to power bi service directly?

To save powerbi file directly to report ...READ MORE

answered Sep 27, 2018 in Power BI by Kalgi
• 52,350 points
1,922 views
0 votes
1 answer

Switch Power BI data sources from Excel to Azure analysis services

One option that you should consider would ...READ MORE

answered Sep 28, 2018 in Power BI by Kalgi
• 52,350 points
663 views
0 votes
1 answer

Displaying Table Schema using Power BI with Azure IoT Hub

Answering your first question, Event Hubs are ...READ MORE

answered Aug 1, 2018 in IoT (Internet of Things) by nirvana
• 3,130 points
1,267 views
+1 vote
1 answer

Unable to install connector for Power Bi and PostgreSQL

I think the problem is not at ...READ MORE

answered Aug 22, 2018 in Power BI by nirvana
• 3,130 points
2,699 views
+2 votes
2 answers

Migrate power bi collection to power bi embedded

I agree with Kalgi, this method is ...READ MORE

answered Oct 11, 2018 in Power BI by Hannah
• 18,540 points
1,464 views
+1 vote
1 answer

Connect power bi desktop to dataset and create custom reports

Yes using Power BI REST API to ...READ MORE

answered Sep 18, 2018 in Power BI by Kalgi
• 52,350 points
1,622 views
0 votes
1 answer

Autorefresh the Power BI report with import Query

You should publish the report from the ...READ MORE

answered Feb 10, 2022 in Power BI by CoolCoder
• 4,420 points
714 views
0 votes
1 answer

Power BI not able to connect to Azure SQL with private end point

You'll need to install an on-prem gateway ...READ MORE

answered Feb 17, 2022 in Power BI by CoolCoder
• 4,420 points
5,088 views
webinar REGISTER FOR FREE WEBINAR X
REGISTER NOW
webinar_success Thank you for registering Join Edureka Meetup community for 100+ Free Webinars each month JOIN MEETUP GROUP