[SOLVED] Gitlab Omnibus 9.3.x installer does not upgrade Mattermost

[hamadata (Hamada Takayuki)]

This problem is fixed.

On previous update, mattermost is restarted in the following way:

Where to find Mattermost after installing GitLab omnibus?

It’s probably NOT that you’re incompatible. In my case, the difficulty of getting this working comes from me not initially understanding all that is going on: I am using mattermost as part of a gitlab “omnibus” installation, and understanding what the “omnibus” thing is doing as it updates and manages things (with chef, I believe) leads to some confusion at times. The mattermost documentation refers to things that don’t exist like some /opt/mattermost/bin/platform executable. The name of …

My mistake was that the mattermost process that kicked by the command described in the article above cannot be killed by the gitlab update procedure. After killing the process, mattermost version 4.0 process can be started.

Thanks,