What Looker version am I running?
Knowledge DropLast Tested: Jun 14, 2019Here are two different options:Click on the question mark icon in upper...
Technical Tips & Tricks
Explore technical tips and tricks to help you get the most out of Looker.
Knowledge Base Articles
How does one resolve an issue with setting up the shared filesystem where the uid and gid are different on the share than they are on the looker server?
Knowledge DropLast tested: Aug 21, 2020 The UID and GUID need to match.As root, you can edit /etc/passwd and /...
Why aren't logs being written?
Knowledge DropLast tested: Jul 23, 2018 When Looker is no longer writing logs, a restart will get the process ...
How do I get looker.pem and looker.key?
Knowledge DropLast tested: Jul 4, 2018 You must obtain your own SSL Certificate and name the files looker.pem ...
max allowed drift time between clusters
Knowledge DropLast tested: Feb 28, 2018Max allowed drift is 20 seconds! If it is more then that, you would nee...
Error Starting Looker
Knowledge DropLast tested: Mar 18, 2019 2019-03-18 05:07:25.343 -0400 [ERROR|007d0|main] :: Error starting Loo...
Can you reference environmental variables in Looker DB credential files?
Knowledge DropLast tested: Feb 9, 2018 When creating the DB credentials file for a MySQL backend, you cannot r...
[Best Practice] when creating multiple nodes (for clustered instances)
Knowledge DropLast tested: Jan 12, 2021 Scenario:You are looking to expand the number of nodes hosting Looker ...
How long must a Looker-hosted instance be unresponsive to trigger an automatic restart?
Knowledge DropLast tested: Apr 6, 2020 Short version5 minutesLong VersionLooker sends a request to check for a...
Do the per-user-query-limit and thread pool limit increase in a cluster?
Knowledge DropLast tested: Jun 15, 2020Yes! These are per-node limits.This content is subject to limited suppo...
How to check if a Looker instance is up
Knowledge DropLast tested: June 2021If you host your own Looker instance, you may want a way to monitor instan...
How do self-hosted users find looker logs?
Knowledge DropLast tested: Jul 11, 2017Step 1: Where to find logsThe standard subdirectories under the Looker ...
Why do I see `DOCTYPE html` from the startup script when trying to start Looker?
Knowledge DropLast tested: Jul 3, 2018 Most likely it means that you downloaded the html version of the startu...
Error when starting Looker on a cluster: script start requires at least 0 argument: "script start"
Knowledge DropLast tested: Aug 26, 2019 A user received the follow error when starting Looker on a cluster wit...
Beginner's guide to distributed systems (Clustered/loadbalancing)
Knowledge DropLast tested: Mar 27, 2019 Imagine that you have been tasked with carrying water from a well to t...
Render error: WebSocket connection is not alive. id: XX
Knowledge DropLast tested: Jun 18, 2020 A user sees RendererNoRenderFinishedEventReceivedError when downloadin...
How do you respecify `mount_nfs` options for a clustered instance?
Knowledge DropLast tested: Jan 21, 2019 In general, these are the steps:stop looker umount mount_nfs -o vers=4...
Does Looker support HA (Highly Available) databases?
Knowledge DropLast tested: Jan 21, 2019First things first: High availability databases use an architecture tha...
Scheduler Priorities
Knowledge DropLast tested: May 10, 2019 There are three types of schedule threads that determine schedule orde...
How do I check the Chromium version on an instance?
Knowledge DropLast tested: Sep 10, 2018 According to docs, after installing Chromium you can check the version...
Why do large HyperSQL internal dbs cause problems?
Knowledge DropLast tested: Feb 4, 2019HyperSQL is an in-memory database. That basically means it needs to be l...
Update failed with `Timed out waiting for Looker to start`
Knowledge DropLast tested: Jun 17, 2020 When jumping versions, Looker needs to update the internal db. General...
What are examples of how to configure the lookerstart.cfg startup file?
Knowledge DropLast tested: Jul 3, 2018Docs have a pretty simple exampleLOOKERARGS="--no-ssl --port 8080"Here's...
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...
Securing looker-db.yml
Knowledge DropLast tested: Oct 1, 2019 When moving a previously self-hosted instance to a MySQL backend, users...
Can I automatically start Looker on system reboot?
Knowledge DropLast tested: Jan 21, 2019 Yes!If you use a System5 style startup system the script is looker_ini...
Why aren't my logs showing up in the admin/logs window?
Knowledge DropLast tested: Jan 21, 2019 What to do when admin/logs is showing a blank screen instead of the us...
Starting Looker Web Application looker ERROR! You are running Java Version (OpenJDK 64-Bit Server VM) which is unsupported. Please ensure that you are running Oracle Java 8 update 161+ or higher.
Knowledge DropLast tested: Apr 26, 2019 As the install docs say, you needed to use Oracle Java. This stackover...
What does a bad cron string look like in logs?
Knowledge DropLast tested: Aug 3, 2018You will see something like: ArgumentError::Bad Vixie-style specificatio...
How do I stop/pause all of my scheduled jobs on my instance? is this possible?
Knowledge DropLast tested: Nov 20, 2019 We are currently not able to do this via the UI. This is a feature req...
