Possible memory leak

[divanikus]

I confirm (by marking "x" in the [ ] below: [x]):

• This is not a troubleshooting question. Troubleshooting questions go here: http://www.mattermost.org/troubleshoot/.
• This doesn't reproduce on web browsers (such as in Chrome). If it does, issue reports go to the Mattermost Server repository.
• I have read contributing guidelines.

---

Summary
Mattermost Desktop consumes constantly increasing amount of memory. I have something around 20 open channels and severl dialogues with other users. Memory consumption after cold restart was around 250 MB, after 5 hours it's around 750 MB. We also saw 1000 MB on one of our collegues desktop.

Steps to reproduce
Just use it for while and look at memory consumption in your Task Manager.

Version numbers

• MS Windows 10 Pro 1709, MacOS X 10.13
• Mattermost Desktop App Version 4.0.0
• Mattermost Server 4.5.0 (4.5.1, postgres) - Omnibus GitLab install v10.4.3

Expected behavior
Memory consumption remains low.

Observed behavior
Growing memory consumption.

[jasonblais]

@divanikus Do you know if the happens on a browser?

I suspect it might be from loading more data over time as you switch channels (and receive new messages).

[divanikus]

I can confirm that in-browser version also consumes memory, but at lesser amount. After 3 hours I see 350 MB for a Chrome tab and 1075 MB for desktop app.

[divanikus]

Ok, switching between channels boosts memory consumption at both in-browser and desktop app. I got 600 MB in Chrome in 2 minutes by simply switching between channels.

Anyway, it's totally not OK.

[divanikus]

Ok, I've reported an issue for server too mattermost-server#8297

[yuya-oc]

Thanks. As you saw on Chrome, switching channel increases memory consumption. The process is merely executing the webapp JavaScript as well as Chrome. So the desktop app can't control the consumption.

[jasonblais]

@divanikus I'll close this issue for now, and we can continue discussion at mattermost/mattermost#8297