Is it possible to connect to the API without an SSL connection?
Knowledge DropLast tested: Oct 16, 2020 Nope - connecting to the API requires an https connection with a valid...
Technical Tips & Tricks
Explore technical tips and tricks to help you get the most out of Looker.
Knowledge Base Articles
"Internal Server Error" when saving
Knowledge DropLast tested: Jun 23, 2020Please add possible causes as you come across them in the comments!Chec...
API Call Timeouts
Knowledge DropLast tested: Nov 5, 2020 If you are using an SDK and you're hitting timeout errors on your calls...
Access to font at ' S3 bucket' from origin 'https://ait.dev.att.com' has been blocked by the CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource
Knowledge DropLast tested: May 20, 2020 If you are seeing this error on your JS console for your embed content...
Why am I getting `Uh Oh. GATEWAY_TIMEOUT` when downloading a dashboard PDF?
Knowledge DropLast tested: Jul 4, 2018 This error implies a network timeout. Check for a load balancer on your...
To use default SMTP, do I need to set up a DKIM and an SPF record?
Knowledge DropLast tested: Jun 14, 2017 Nope, just allow traffic to smtp.sendgrid.net on port 587 and allowlis...
Can we specify other than port 22 for SFTP?
Knowledge DropLast Tested: Nov 27, 2018Yes, totally. You can send to that server by specifying the port in the...
What does a ChunkLoadError in the JS console mean?
Knowledge DropLast tested: Mar 16, 2020 A "ChunkLoadError" generally means that a checksum failed for a javasc...
What could cause the purple loading bar to get stuck?
Knowledge DropLast tested: Apr 24, 2020 This is probably either due to an intermittent outage on the load bala...
For scheduled PDFs, why do some PDFs timeout < 30 mins but others can successfully run after 60+ mins?
Knowledge DropLast tested: Jul 26, 2017You can see this behaviour because the render timeout (in most cases) w...
Why is my custom map layer not loading in public embed?
Knowledge DropLast tested: Nov 18, 2020 Firstly, if we open up the network tab do we see a 3xx redirect when t...
Network requirements to connect to Marketplace
Knowledge DropLast tested: Jul 24, 2020 HTTPS port 443 should be open or able to access https://marketplace-ap...
"I can't see _ from my work computer, but can from my personal computer"
Knowledge DropLast tested: Jul 24, 2020 If a user is not seeing something in Looker that others are seeing, ha...
Can I use the mobile app while allowlisting IPs in Looker?
Knowledge DropLast tested: May 7, 2021 Not natively. If you allowlist specific IPs in Looker, then the IPs of ...
What to put in Domain Whitelist field when setting up User Attribute Git Password
Knowledge DropLast tested: Jun 24, 2020 It's URLs to the github repository!For example: https://github.com//Yo...
Performance Diagnosis: Network Unreliability
Knowledge DropLast tested: Nov 2, 2018 In order to use Looker, end users need to make requests from their clie...
Can I extend Looker's default proxy timeout of 60 mins?
Knowledge DropLast tested: June 2021No. Any query run in the UI (or API) will be subject to the proxy timeout ...
Can I use a VPN to connect a Looker-hosted instance to a my database?
Knowledge DropLast tested: June 2021No, but depending on your needs, you may be able to setup a host (tunnel s...
Why did my query fail and have status cancelled?
Knowledge DropLast tested: Mar 27, 2019 There can be various reasons for this. At the most simple level:The us...
Default API port on GCP and Azure (why can't I connect to the API for instances hosted on Kubernetes)
Knowledge DropLast tested: Apr 18, 2021 Default API port on GCP/Azure hosted instances is 443 - it’s no longer...
Rendering Images and hosting custom visualizations from GCP Storage
Knowledge DropLast tested: Aug 16, 2019 When referencing files from Google Cloud Storage via html, always use ...
Is the JavaScript that runs Custom Visualizations able to make http requests?
Knowledge DropLast tested: Jan 21, 2019 It is not.Sandboxed iframes have an origin of `null` so any http reque...
Why would I get `504 gateway time-out nginx/1.12.21` error
Knowledge DropLast tested: Jan 21, 2019 For Looker-hosted instances: Your web browser talks to a load balancer...
Net::SFTP::StatusException (3, "permission denied") error
Knowledge DropLast tested: Dec 1, 2020 When you see the error Net::SFTP::StatusException (3, "permission denie...
What IP Addresses do I need to allowlist on my database or SFTP / custom SMTP server?
Knowledge DropLast tested: April 2021For Looker-hosted customers, this doc tells you which IP addresses to all...
413 Request Entity Too Large Error
Knowledge DropLast tested: Jan 21, 2019 This error can be returned by the proxy that sits in front of the Look...
