Twitter Status

We're looking into the cause of elevated errors on the site

Fri, 06 Nov 2009 13:50:00 -0800

About 20 minutes ago we started seeing a pronounced increase in the number of errors generated on the site. We’re investigating the cause of this problem.

Update (2:15p): This has now been resolved.

Missing some mentions?

Thu, 05 Nov 2009 16:54:40 -0800

Some users are seeing an incomplete number of tweets when viewing their @username mentions (the replies tab on twitter). In particular, older tweets may be missing and users may find that they cannot page back to see older @username mentions. We’re working to fix the problem that causes this.

Testing new tweet notifications

Wed, 04 Nov 2009 16:58:59 -0800

We’re starting a limited test of notifications on twitter.com for when you have new tweets. So if one of the folks you follow has tweeted since you loaded your homepage, you’ll get a little notice saying “1 new tweet” that, when clicked, will display the new content.

We think it improves the tweet consumption experience and hope to roll it out to everyone as soon as we can.

Update on SMS and Direct Message email bugs

Thu, 29 Oct 2009 15:10:00 -0700

We are pushing additional fixes for the issue reported yesterday regarding missing email notifications for Direct Messages. We believe this should fully resolve the delivery issue.

We are still working on a number of inconsistencies with the SMS service. This includes the inability to remove or add a phone and unresponsiveness to commands sent over SMS. This is being treated with highest priority and we continue to work on a fix.

Update (8:05p): We believe both of these issues have now been resolved. We are continuing to monitor the situation.

Lists test is being temporarily disabled

Thu, 29 Oct 2009 11:40:00 -0700

Those who are in the test group for lists will temporarily see the feature disabled as we make some changes.

Update (8:13p): This has been re-enabled.

Not receiving emails for Direct Messages

Wed, 28 Oct 2009 13:20:00 -0700

Users have the option of receiving email notification for Direct Messages. However, not all of these emails are being sent. We are investigating the source of this bug.

Update (3:03): We believe this issue has now been resolved and we are testing the fix.

SMS problems still being worked on

Wed, 28 Oct 2009 12:10:28 -0700

Last night we posted about some ongoing SMS problems. An emergency fix we did last night appeared to address many of the symptoms but we still have problems with SMS commands not being accepted.

We are continuing to work on this.

SMS problems being worked on

Tue, 27 Oct 2009 20:10:00 -0700

We are currently working on problems affecting the SMS service for Twitter. Users will notice that Twitter is not responding correctly to commands sent over the SMS service. Also, users are unable to start using the SMS service by adding their device on the web or sending START to the SMS short code.

These are urgent problems and we are working to correct them.

Update (9:35p): These problems have been resolved.

Expanding Lists feature to 5 percent

Thu, 22 Oct 2009 16:42:49 -0700

We are expanding availability of Lists to 5 percent of users and will work our way up to a full roll-out in the coming weeks.

Elevated error rate being worked on

Wed, 21 Oct 2009 11:51:44 -0700

For the past several hours, we’ve been contending with a high rate of errors on twitter.com. This problem is being caused by over-consumption of resources on our webservers due to several changes we’ve made in the past few days. These changes are necessary for the future growth of the product. As a result we are working through the inefficiencies in the system in order to decrease the error rate.

Responding to network connectivity problems

Sun, 18 Oct 2009 08:29:00 -0700

We are currently investigating a problem whereby some Twitter clients in widely scattered network locations are unable to connect to twitter.com.

Update (Sunday 1:36pm PDT): Network should be back to normal now. We are investigating the cause of the outage and will update this with more information when we know more

Lists Beta Released to More Users

Thu, 15 Oct 2009 16:00:18 -0700

To further test our beta Lists feature, we’ve introduced it to a larger group of users.

Timelines currently 30 minutes behind

Thu, 15 Oct 2009 14:16:26 -0700

Timelines are currently lagging by 30 minutes. We are working on this issue and things should be back to normal soon.

Researching username, password change problems

Tue, 13 Oct 2009 15:59:00 -0700

We’re currently researching reports from users who are locked out after trying to reset their passwords or change their email address or user names. This seems to affect new users as well as long term users; we do not advise changing your user name, email address, or password at this time. We will update Status with more news as it becomes available.

Update (Thursday 3:58pm): We’re still working on this problem, and encourage you not to make changes to your email address, password, or user name during this time.

Responding to increased errors, inability to tweet

Mon, 12 Oct 2009 12:10:00 -0700

We’re looking into the cause of the 500 errors that are being seen by users on twitter.com. We’re also working on the posting problems that many people are running into when trying to create tweets.

Update (Tuesday 3:43pm) We’re still looking into tweet creation problems. Specifically, reports of erroneous error messages and/or no error message, but inability to post tweets. Please add comments to the Known Issues page here if you’re experiencing this problem. Thanks for your patience.

Timeline delays this morning

Thu, 08 Oct 2009 09:08:00 -0700

We are currently investigating a problem causing many users’ timelines to be delayed. We will update with status here shortly.

Update (10:50a): Timelines remain stale for users. We are deploying fixes to address the problem.

Update (12:27p): This issue has been resolved and timelines are updating normally once again.

Update (12:54p): The problems this morning were caused by a bug triggered by an edge case in one of the core services that powers Twitter. We have already fixed this bug and are making additional optimizations based on what we learned.

Most users are seeing freshly updated timelines. However, due to the previous problems, users of our SMS service may experience some missing tweets.

Recovering from unplanned downtime

Wed, 07 Oct 2009 15:28:00 -0700

We’re currently diagnosing the causes of an unplanned site outage that happened a few minutes ago. We are recovering from this issue now and apologize for the interruption in service.

Trouble with user and background images

Fri, 18 Sep 2009 10:27:38 -0700

We’re having an issue with disappearing user and background images. Those affected will have their custom images replaced by defaults. This is due to a caching error on our side which means that your images are not lost and have not been deleted. They are not displaying correctly and we are working to get them to load properly.

Missing your profile picture?

Thu, 17 Sep 2009 17:13:00 -0700

We’re working on a bug whereby the default avatar is showing up for users who have previously uploaded their own image. We hope to resolve this soon.

Update (5:30p): We’ve identified the root cause of this problem and expect the issue to be resolved within the next several hours.

Tweets from users you follow may be missing from your timeline

Wed, 16 Sep 2009 19:44:00 -0700

We are currently working on a critical bug whereby some tweets from users you follow may not appear in your timeline. This bug particularly affects the delivery of tweets from users you follow that themselves have a large number of followers.

We plan on deploying the first part of the fix for this bug tomorrow morning and will update status thereafter.

Update: We deployed a fix for one of the underlying problems and are assessing its success.