topic Re: TAC 7.3 Installation error in Installing and Upgrading

TAC 7.3 Installation error

Sree4 — Wed, 07 Oct 2020 01:42:25 GMT

Hi, we are upgrading to Talend 7.3 and using mySQL. But we see the following error in TAC "The call failed on the server; see server log for details".

We made sure to place the latest mysql jar file in \lib folder and also the user has admin role.

Any suggestion on how to resolve this issue?

Re: TAC 7.3 Installation error

Anonymous — Fri, 09 Oct 2020 04:30:37 GMT

Hello,

Is there any permission issue of the user on the MySql DB?

Please ensure that the user has right authentication at all levels like TAC and TAC DB.

Best regards

Sabrina

Re: TAC 7.3 Installation error

Sree4 — Wed, 14 Oct 2020 16:12:59 GMT

Hi, It isn't related to the mysql user permission issue, We contacted Talend Support and they gave us a path to install also with that we had to also do schema changes to the old mysql database . The following were the steps that we followed to resolve the issue.

* Install the patch (Talend Support will provide us)

* Don't start tac. If it's started, please stop it.

* Import the db dump to your current mysql8 server.

* Add a 'options' column to the 'backup' table.

use talend_administrator;

ALTER TABLE backup ADD options VARCHAR(255);

* Clear the Apache-Tomcat cache: Go into the installation directory/tac/apache-tomcat and delete the work and temp folders.

* Start TAC.

* Clear the browser cache and refresh the browser.