This will allow us to make the setup time TTL for k8s-based builds much lower (on the order of a minute), which means faster timeouts and fallbacks (which is a better user experience).
This change fixes the build manager ephemeral executor to tell the overall build server to call set_phase when a build never starts. Before this change, we'd properly adjust the queue item, but not the repo build row or the logs, which is why users just saw "Preparing Build Node", with no indicating the node failed to start.
Fixes#1904
- Make sure to cleanup the job if the executor could not be started
- Change the setup leeway to further ensure there isn't any crossover between the queue item timing out and the cleanup of the jobs
- Make the lock used for marking jobs as internal error extremely long, but also based on the execution ID. This should ensure we don't get duplicates while allowing different executions to be handled properly.
- Make sure to invoke the callback update for the queue before we run off to etcd; should reduce certain timeouts
Hopefully Fixes#1836
This entails writing a metric aggregation program since each worker has its
own memory, and thus own metrics because of python gunicorn. The python
client is a simple wrapper that makes web requests to it.
This change defaults the ordering requirement of queue items to be off
and only enables it for the build manager. This should make the queries
for getting queueitems significantly faster for every other use case.
This change adds a generic queue onto which metrics can be pushed. A
separate module removes metrics from the queue and adds them to Cloudwatch.
Since these are now separate ideas, we can easily change the consumer from
Cloudwatch to anything else.
This change maintains near feature parity (the only change is there is now
just one queue instead of two - not a big deal).
Etcd can miss events on watches if they are occurring fast enough, so if we can get an exception indicating that we've missed an index, we reset the state of our local tracking structures by re-reading the *full* list and starting a new watch at HEAD
