Problem with Syncronizing Group Chats

tomasnorre commented 8 years ago

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

[x] This is not a feature idea. Feature ideas go here: http://www.mattermost.org/feature-ideas/
[x] This is not a troubleshooting question. Troubleshooting questions go here: http://www.mattermost.org/troubleshoot/
[x] This is a product defect issue that can be reproduced using the steps listed below.
[x] I have read CONTRIBUTING.md.

Summary

Sometimes my laptop (osx) is not synchronizing my group chats?

Steps to reproduce

Please include:

OSX (10.10.5)
Mattermost Desktop App version: 1.3.0
Clear steps to reproduce the issue

I don't know how to reproduce this as it doesn't happen regulary.. But it seams to be a pattern of when the laptop gets back from sleep mode or change network from wifi to lan or vice versa.

Expected behavior

Would expect that my chats are always in sync when i'm connected to the internet, regardless of waking up from sleep mode or joining another network.

Observed behavior

My colleagues went to me face-to-face to inform me about stuff happened in Chat, that i didn't react to.

Possible fixes

I honestly have no clue.. :(

yuya-oc commented 8 years ago

Would you check following points? At the moment, it seems that the problem is caused by server's behavior.

Server version
Does that happen in web browsers?
Are there any screenshots or console logs? (You can find it with View->Toggle Developer Tools menu).

jasonblais commented 8 years ago

Thanks @tomasnorre for the report, we'll keep an eye on this. It sounds like the reconnection isn't happening properly - the Mattermost team did some updates on the server side regarding WebSocket connections for the upcoming v3.4 release, so that might be helpful here.

Whenever it has happened, does changing a channel or making a post bring everything back into sync? Or does it require a refresh of the application page?

If you have any more information, it would help us investigate the issue further. The Mattermost server version @yuya-oc is referencing above can be found by clicking on the three dots next to your profile picture, then About Mattermost).

tomasnorre commented 8 years ago

Here is a little more information:

Server: Mattermost Enterprise Edition Modern communication from behind your firewall. Version: 3.3.0 Database: mysql

I've not been using the browser, but will try it out for the next couple of days.

@yuya-oc I don't have any console logs or anything that supports the problem solving. @jasonblais I fixes the problem by restarting the Mattermost desktop app.

tomasnorre commented 8 years ago

The issue happened to me again today, this time in the browser with Chrome - Version 52.0.2743.116 (64-bit) (osx)

And it happened after my lunch break, so could be related to sleep/wake-up sync when reconnecting.

When you compare the too screenshots, then you see that is a block missing in the lighter one.

laptop_1 laptop_2

jasonblais commented 8 years ago

Aah, thanks @tomasnorre! This is really useful information. Mattermost submitted a fix for a related issue in 3.4.

Wondering if you'd like to try and see if it reproduces on 3.4, once your team has upgraded to the newest version?

(Mattermost 3.4 will be officially released on Friday, but the download links should be available before then on our downloads page)

tomasnorre commented 8 years ago

I'll check when we will update, and follow up on this.

jasonblais commented 8 years ago

@tomasnorre

There have been some reports that users no longer experience missing messages after updating their desktop app from v1.3 to v3.4 (RC1), which can be downloaded here. Would be curious to hear if you've downloaded the RC1, and if so, whether you've experienced missing messages?

Even though the fix I mentioned was done on the server side, maybe there were synchronization problems on the v1.3 client app as well.

tomasnorre commented 8 years ago

@jasonblais

I'll be happy to give it a try. :)

tomasnorre commented 8 years ago

@jasonblais I haven't experienced the problem since client and server update..

I first updated the client, and that didn't cause me any problems. The server is now updated to, and didn't face the problem since client update to v1.4.0.

Feel free to close the ticket, it can always be re-opened if something pops up.

jasonblais commented 8 years ago

Thanks for letting us know @tomasnorre!

There was another user who reported seeing it at least once on v3.4 desktop. The issue is suspected to be on the server side, but I'll keep the issue open until then just in case.

Thanks again, much appreciated

tomasnorre commented 8 years ago

@jasonblais You're welcome, let me know if i should test or verify anything for you.

jasonblais commented 7 years ago

This should now be fixed with Mattermost server 3.6 (JIRA ticket here).

mattermost / desktop