Mender-connect remote terminal access suddenly dissappeared in all devices

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1

Hello,
I’ve an issue with mender-connect. Yesterday, all fleet of devices which are running on meta-mender, the mender remote terminal access has disappeared. That means there is no button to launch remote terminal from the server. When I checked the logs, I’ve the following info,

journalctl -fu mender-connect
-- Logs begin at Sun 2020-09-20 10:43:58 UTC. --
Jul 07 10:21:00 j140-tx2-d02 mender-connect[24127]: time="2021-07-07T10:21:00Z" level=info msg="Loaded configuration file: /etc/mender/mender-connect.conf"
Jul 07 10:21:01 j140-tx2-d02 mender-connect[24127]: time="2021-07-07T10:21:01Z" level=warning msg="The server certificate cannot be loaded: no file provided"
Jul 07 10:21:07 j140-tx2-d02 systemd[1]: Stopping Mender Connect service...
Jul 07 10:21:08 j140-tx2-d02 systemd[1]: mender-connect.service: Succeeded.
Jul 07 10:21:08 j140-tx2-d02 systemd[1]: Stopped Mender Connect service.
Jul 07 10:21:08 j140-tx2-d02 systemd[1]: Started Mender Connect service.
Jul 07 10:21:08 j140-tx2-d02 mender-connect[24323]: time="2021-07-07T10:21:08Z" level=info msg="Loaded configuration file: /etc/mender/mender-connect.conf"
Jul 07 10:21:08 j140-tx2-d02 mender-connect[24323]: time="2021-07-07T10:21:08Z" level=warning msg="call to GetJWTToken on the Mender D-Bus API failed: GDBus.Error:org.freedesktop.DBus.Error.ServiceUnknown: The name io.mender.AuthenticationManager was not provided by any .service files"
Jul 07 10:21:08 j140-tx2-d02 mender-connect[24323]: time="2021-07-07T10:21:08Z" level=info msg="waiting for JWT token (waitForJWTToken)"
Jul 07 10:21:08 j140-tx2-d02 mender-connect[24323]: time="2021-07-07T10:21:08Z" level=warning msg="The server certificate cannot be loaded: no file provided"

I’m wondering what changed now, why all the remote terminals are disappeared suddenly.

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2

This is a known bug in the Mender client (it fails to provide the token to mender-connect). It is in the process of being released as we speak, and should be available in a matter of days.

3

Ok, Which is going to be the version with this fix? is this going to be a server side fix or client side?

4

It is a client side fix, and will be available in Mender Client 2.5.2, 2.6.1 and 3.0.0.

5

I see that v2.7 is not listed. Does that mean v2.7 has already this fix?

6

There is no 2.7 client. What you are talking about is the Mender Product offering, which is the complete offering of all the tools. The mapping then becomes as follows:

  • Mender client 2.5.1 <= Mender Product offering 2.6.1
  • Mender client 2.6.2 <= Mender Product offering 2.7.2
  • Mender client 3.0.0 <= Mender Product offering 3.0.0
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7

That’s very clear. Thank you . May I ask one more question, if there was a bug in the client side, why I was able to access the remote terminal until yesterday?

8

It’s a race condition, so it does not always happen, only when you are unlucky. :slightly_smiling_face:

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