The kubelet restarts working pods with an exponential back-off delay,
with a maximum cap of 5 minutes. The waiting 1 minutes may happen to be
in back-off time.
Signed-off-by: Ruquan Zhao <ruquan.zhao@arm.com>
framework.SIGDescribe is better because:
- Ginkgo uses the source code location of the test, not of the wrapper,
when reporting progress.
- Additional annotations can be passed.
To make this a drop-in replacement, framework.SIGDescribe generates a function
that can be used instead of the former SIGDescribe functions.
windows.SIGDescribe contained some additional code to ensure that tests are
skipped when not running with a suitable node OS. This gets moved into a
separate wrapper generator, to allow using framework.SIGDescribe as intended.
To ensure that all callers were modified, the windows.sigDescribe isn't
exported anymore (wasn't necessary in the first place!).
Rate limitter.go file is a generic file implementing
grpc Limiter interface. This file can be reuse by other gRPC
API not only by podresource.
Change-Id: I905a46b5b605fbb175eb9ad6c15019ffdc7f2563
The spaces are redundant because Ginkgo will add them itself when concatenating
the different test name components. Upcoming change in the framework will
enforce that there are no such redundant spaces.
Add and use more facilities to the *internal* podresources client.
Checking e2e test runs, we have quite some
```
rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial unix /var/lib/kubelet/pod-resources/kubelet.sock: connect: connection refused": rpc error: code = Unavailable desc = connection error: desc = "transport: Error while dialing: dial unix /var/lib/kubelet/pod-resources/kubelet.sock: connect: connection refused"
```
This is likely caused by kubelet restarts, which we do plenty in e2e tests,
combined with the fact gRPC does lazy connection AND we don't really
check the errors in client code - we just bubble them up.
While it's arguably bad we don't check properly error codes, it's also
true that in the main case, e2e tests, the functions should just never
fail besides few well known cases, we're connecting over a
super-reliable unix domain socket after all.
So, we centralize the fix adding a function (alongside with minor
cleanups) which wants to trigger and ensure the connection happens,
localizing the changes just here. The main advantage is this approach
is opt-in, composable, and doesn't leak gRPC details into the client
code.
Signed-off-by: Francesco Romani <fromani@redhat.com>
This deflakes the "Containers Lifecycle should not launch second
container before PostStart of the first container completed" test by
assigning enough time to finish the postStart hook.
With the new busybox, ash has a built-in sleep command. Prior to this
change we were creating half the pids expected since `sleep` wasn't
actually launching a new binary. Use the full path to /bin/sleep which
avoids the built-in and actually launches a new process.
This reverts commit bd6f548746.
Running as serial didn't completely eliminate the flake so I think
there's something more going on here. Reverting the change to serial
since its not a solution.
In testing I could only reproduce the flake by running stress-ng to load
the CPU. Running it as serial should reduce and hopefully eliminate the
flakiness.
