Bug #66806 Cannot close WB after SSH tunnel times out
Submitted: 13 Sep 2012 12:08 Modified: 10 Jul 2013 14:28
Reporter: David King Email Updates:
Status: No Feedback Impact on me:
None 
Category:MySQL Workbench Severity:S3 (Non-critical)
Version: OS:Linux (Ubuntu 12.04)
Assigned to: CPU Architecture:Any

[13 Sep 2012 12:08] David King
Description:
After connecting to a database over an SSH Tunnel the system will "hang" indefinitely after the SSH connection is reset and the user tries to execute a command.

How to repeat:
1 - Connect to a DB over an SSH Tunnel
2 - Execute any SQL command (should work OK)
3 - Wait till the connection is dropped
4 - Execute any SQL command

The system will "hang" while waiting for a response from the server, furthermore any attempts to close the server will show "cannot close IDE while busy" (or something similar)
[1 Oct 2012 20:35] Miguel Solorzano
Please check 5.2.44 version presents the same issue. Thanks.
[2 Nov 2012 1:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".
[2 Nov 2012 8:51] David King
Thanks, I shall give this release a go.

FYI I've always used the following ssh configuration to prevent my sessions timing out, works for me in the shell in keeping the connection "hot". Maybe this could be a useful avenue of investigtion:

edit your local ssh config file
sudo nano /etc/ssh/ssh_config
append or modify the following values
ServerAliveInterval 15
ServerAliveCountMax 3
[10 Jun 2013 14:28] Miguel Solorzano
Please check 5.2.47. Thanks.
[11 Jul 2013 1:00] Bugs System
No feedback was provided for this bug for over a month, so it is
being suspended automatically. If you are able to provide the
information that was originally requested, please do so and change
the status of the bug back to "Open".