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https://www.duolingo.com/profile/Zeitschleifer

No Activity button

EDIT [20-04-2017]: All Activity Streams are turned off for everyone and will not work again.

Read the official announcement here: https://www.duolingo.com/comment/22226909

A short quote:

... today we needed to remove Activity Streams from the Duolingo experience.

Below is my original post written three months prior to this event:

All of a sudden the Activity button has disappeared for me. What could have happened? I appreciate any answers

January 17, 2017

205 Comments


https://www.duolingo.com/profile/jrikhal

Hi all,

I had feedback from Staff about Activity tab in the top blue menubar missing and "Sentences" tab in courses' forums missing.

They said that due to stability issue with the website(*), they decided to temporarily disable those tabs to ensure stability of the whole website. and that they are doing their best to bring them back without compromising site performance.

So we'll (again) just have to be patient. ;)

  • UPDATE[17/01/2017 21h30UTC]:
    • See Duo's official communication about this issue here.
  • UPDATE[19/01/2017 20h50UTC]:
    • Immersion's disappearance is not due to the same reason(*): Duolingo stopped definitely Immersion, see here the official announcement.
    • (*) up to now, the disappearance of Immersion — for very few users that had it — hasn't been announced to not be a "temporary disappearance made to alleviate servers"
  • UPDATE[20/01/2017 23h30UTC]:
    • Activity tab is back
    • Streams are back. However,
      • events of the last ≈18hours are missing
      • new events on the stream will disappear after a refresh
  • UPDATE[20/01/2017 00h30UTC]:
    • Streams fully back. Waiting now for datas of forums' "Sentences" tab to be put back too.
  • UPDATE[23/01/2017 14h30UTC]:
    • Seems that the "leave a message" button/field on streams isn't working for anyone since 22/01/2017 12h00UTC (noon)
    • "Sentences" tab on courses' forum still not back.
  • UPDATE[23/01/2017 22h20UTC]:
    • "leave a message" button/field on streams is working again
  • UPDATE[23/01/2017 23h23UTC]:
    • "Sentences" tab on courses' forum are back.
  • UPDATE[24/01/2017 01h30UTC]:
    • "Sentences" tab on courses' forum disappeared again.
  • UPDATE[06/03/2017 23h50UTC]:
    • "Sentences" tab on courses' forum are back.

(*) Stability issues started on Jan. 10th as you can see here.
Note: this link is just here as a reference about when this sequence of "stability issues" started. It is not here as a reference about what has been solved when neither about what was solved but is down again etc. ;)
See also this comment where Luis explained 6 days ago that they disabled (for ≈24h) some features in order to alleviate load on their servers: they did the same today.

January 17, 2017

https://www.duolingo.com/profile/TaylorSommers14

I am glad that it is just temporary! Thank you for informing me.

January 17, 2017

https://www.duolingo.com/profile/Jack.Elliot

.

Cheers

More time for my Doughnuts

January 17, 2017

https://www.duolingo.com/profile/WildSage

I can't even open a lesson at this point. It sends me back to the Home page. Disabling lessons would seem like the last resort.

UPDATE: Can't do lessons on the website and can do them on the phone app. It seems they are prioritizing the app over the site :(

January 17, 2017

https://www.duolingo.com/profile/Ifphigenia

The UPDATE[17/01/2017 21h30]: says everything is now under control but it isn't, I have just lost immersion as well as my already missing and not yet returned activity. From my perspective it has got worse not better, is there a further problem other than server overload? Do you have any other information, or are you getting your updates in the same way as we are?

January 18, 2017

https://www.duolingo.com/profile/Juelke

Hello everybody! I Switzerland we are saying: "He has a knot in the conductor". I hope, that it is not a "Gordian knot" and that ACTIVITY and IMMERSION will be back soon.

January 19, 2017

https://www.duolingo.com/profile/SussexSoleil

How are we supposed to contact a moderator, if there is no Activity stream?

Isn't this leaving some under-age users vulnerable, or are you on high alert?

January 18, 2017

https://www.duolingo.com/profile/NaftaliFri1

Don't see sentences tab yet. Direct link to sentences page (/sent) not working either.

January 24, 2017

https://www.duolingo.com/profile/Texangymnast

When does it end? Did it start at 12:00 this morning, making it end at 12:00 tomorrow, or will it go later than that?

Thanks!

January 17, 2017

https://www.duolingo.com/profile/Alf42

Any idea if and when activity stream is expected back?

January 20, 2017

https://www.duolingo.com/profile/CaptainCIarky

i still don't have it.

March 15, 2017

https://www.duolingo.com/profile/DerLutz48

thank you, How were you able to find this out?

January 17, 2017

https://www.duolingo.com/profile/LingotKing

NNNNNNNNNNNNNNNNNOOOOOOOOOOOOOOOOOOO:( No more activity!!!!!!!!

January 17, 2017

https://www.duolingo.com/profile/DenisBouch7

Thank you!

January 19, 2017

https://www.duolingo.com/profile/a507
  • 1885

https://www.duolingo.com/profile/DerLutz48

Yeah! THANK YOU for keeping everyone posted. I really appreciate it! :)

January 21, 2017

https://www.duolingo.com/profile/PapyXM

jrikhal wrote: (*) Stability issues started on Jan. 10th as you can see here.


Hi jrikhal. The thread you reference to was removed. Does it mean it's supposed to be solved now? Since mid december 2016 when I registered, I have never seen this Activity tab on my Web profile, nor on the Android app neither.

March 6, 2017

https://www.duolingo.com/profile/_Hurricane_Irene

Why did you lock me discussion? My discussion. Not yours.

January 17, 2017

https://www.duolingo.com/profile/Lrtward

It's like that for everyone.

Would you please edit your post and change the topic from "Duolingo" to "Troubleshooting"? I want to point folks to this one (so we're not overrun with a zillion of the same one) but it needs to be in the correct forum.

Thanks!

January 17, 2017

https://www.duolingo.com/profile/Zeitschleifer

Done. Let it be in Troubleshooting

January 17, 2017

https://www.duolingo.com/profile/WildSage

Except it is not down for everyone. Which is kind of confusing.

January 17, 2017

https://www.duolingo.com/profile/DaveBoss

No worries. Immersion is down too. In recent weeks there have been several outages like this. DuoLingo is growing faster than its servers can keep up with.

January 17, 2017

https://www.duolingo.com/profile/Zeitschleifer

Thank you! I hope so!

January 17, 2017

https://www.duolingo.com/profile/DerLutz48

I am so sorry! Es tut mir leid. I didn't realize I already hassled you about that. I feel bad. But don't worry, I will do my best not to worry about it.

January 20, 2017

https://www.duolingo.com/profile/DerLutz48

I beg to differ, there is a LOT to worry about. The earth is warming, don't encourage apathy

January 20, 2017

https://www.duolingo.com/profile/DerLutz48

try not to say "no worries" Unless you really are from Australia, it sounds a little pretentious and disingenuous.

January 18, 2017

https://www.duolingo.com/profile/Ifphigenia

Ditto, no activity tab and no activity streams not even on my profile page, this started today (17th January) at about 1500 GMT. Currently, I can still open lessons and discussions but nothing else.

I fully understand Duo needs to prioritise in order to keep the servers running but I do hope they are able to sort out the problems fairly soon as it must be very stressful for the staff as well as the users.

Fingers crossed for a successful outcome.

January 17, 2017

https://www.duolingo.com/profile/elle_pech

Thanks.... wondering the same. : Activity is just gone for me. Great to know that's it's at least a glitch and will come back pretty soon.

January 17, 2017

https://www.duolingo.com/profile/Zeitschleifer

You're welcome!

January 17, 2017

https://www.duolingo.com/profile/SussexSoleil

"Duolingo is experiencing some behavior issues due to heavy traffic." Meh!

Let's assume we can take this at face value, i.e:

1) There isn't some DoS (Denial of Service) attack underway. Unlikely, as removing features isn't going to make responses better, unless the DoS is invasive and targeting specific functions. That is also unlikely, since people who launch these attacks are basically lazy, and probably can't be bothered to learn a language to prepare an attack :-). Even it that is the case, read on .... .

2) There isn't some hardware or software issue that is compromising performance. And why wouldn't they say so?

So, heavy traffic, eh?

Well, no surprises there! It really is time that the Owl took on board the fact that you cannot manage a worldwide "open house" computer system with millions of users for long ... .

a) You need users to register.

b) You need users to authenticate themselves to sign on.

c) You need to time out users after a period of inactivity - say 2 hours.

By putting in these controls, you can prevent additional users from signing on when the system is under stress. That way at least, the users who are already logged on are not suffering degraded performance at the expense of additional users piling in.

You cannot provide any level of assured service and response with Duolingo's "free-for-all" user model (and I'm not using free in the sense of money here).

Starting to rip out functionality is a last resort, not the first. Wake up to the real world of computer systems, Owl! You cannot change the laws of physics.

January 18, 2017

https://www.duolingo.com/profile/jrikhal

Starting to rip out functionality is a last resort, not the first.

As a (very) temporary first resort, it can be, IMO: just to reduce the #requests made to servers for few hours. But it makes sense (to me, at least) only if:

  1. you use those few hours to finally put into place some real "long-term fixing" solutions (like the ones you mentioned, at least a) & b)).
  2. the overload of the servers is not "too high above" the limit the servers can absorb. Otherwise, ripping few features will probably not be enough to alleviate enough the servers for those few hours (cf. the website finally going down totally for few minutes yesterday, despite all those features already disabled).

As a first resort for more than few hours (let say few dozens to be large), it indeed looks to me like a strange (to not say more) idea...

January 18, 2017

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