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What is an OOPS?

When Launchpad suffers an error that prevents it doing what you requested, it will log the error and some diagnostic detail, so that a developer or system administrator can figure out what has happened and we can fix it.

What does an OOPS look like?

In the web UI, it will look something like the image below.


An example of an OOPS message

The red highlight is around the OOPS ID -- that is the code that lets us look up the error and see what went wrong.

In response to a command email, it will be a plain text message with an OOPS id.

In the LP API, it is a 500 response code and the OOPS code will be in the body.

What do we do with OOPS reports?

All OOPSes are aggregated and published as a summary to the developer list daily. We create bugs to match the OOPSes that have been occurring and treat all OOPS bugs as high priority. That queue is pretty full though, so please talk to use when you are experiencing a problem - there may be a workaround that can help you achieve get what you are trying to do.

Why do they happen?

There are multiple causes for an OOPS. Broadly they fall into three camps.

Firstly, and the most commonly encountered cause, if a Launchpad web request is going to take a long time to complete, the server aborts the request to free up resources and hopefully unlock and unblock other requests. This is the 'timeout' OOPS.

Secondly, we generate an OOPS when an internal link within Launchpad is broken.

Lastly, a code bug that causes an unhandled exception will show up as an OOPS.

What to do if you encounter an OOPS

Come and chat to us on #launchpad on irc.libera.chat. We'll try and help you achieve what you are trying to do. We may ask for the OOPS ID - see above under what does an OOPS look like?.

We like to make sure there is a bug report for every OOPS - if you want you can look at the known OOPS bugs we have.

Oops (last edited 2021-05-27 14:20:30 by cjwatson)