Tableau Prep Flow Authoring in Error State

KNOWLEDGE BASE

Tableau Prep Flow Authoring in Error State

Published: 10 Jun 2022
Last Modified Date: 10 Jun 2022

Issue

Tableau Prep Flow Authoring service is unable to start with error message : ServiceOperationTimeoutException
Below error message can be found in tomcat_floweditor log:

java.lang.IllegalArgumentException: Server hostname should not be null

Environment

Tableau Server 2021.4.3
CentOS 7

Resolution

Check if there's any value defined for the key by running the following command on Tableau Server:
```
tsm configuration get -k gateway.public.host
```
If the no value is defined, update the key vwith the Tableau Server FQDN. For example, if Tableau Server is reached by entering https://tableau.example.com in the browser, enter this command:
```
tsm configuration set -k gateway.public.host -v "tableau.example.com"
```
Commit the configuration change:
```
tsm pending-changes apply
```

Cause

TSM configuration has been changed in operations such as restoring a backup, or importing configuration. The value of gateway.public.host is lost after an unsuccessful operation.