For request like '/api/v1/watch/namespaces/*', don't set scope.namespace.
Because the func `addWatcher` add a watcher to allWatchers with the value `scope.namespace` not empty.
But the function `dispatchEvent` dispatch event with an empty namespace.
Signed-off-by: xyz-li <hui0787411@163.com>
Kubernetes-commit: 818fabe37b3fd7cebe36a43244120388977373cd
* apiserver/storage/continue: intro PrepareContinueToken
PrepareContinueToken prepares optional
parameters for retrieving additional results for a paginated request.
This function sets up parameters that a client can use to fetch the remaining results
from the server if they are available.
* apiserver/storage/etcd3: refactor to use PrepareContinueToken
Kubernetes-commit: efef32652af0af08a0b9c9bc547a4dce4a95f9f5
For case of SendInitialEvents, a buffer of objects is created. That
process takes a significant amount of memory and CPU when the resource
is of a large volume. Many objects may be not relevant when key is provided.
This commit applies key when composing the buffer for SendInitialEvents.
Signed-off-by: Eric Lin <exlin@google.com>
Kubernetes-commit: d9c6c8aa5047d724e0ebc8907f5fee4b10012ae3
The internal informer populates the RV as soon as it conducts
The first successful sync with the underlying store.
The cache must wait until this first sync is completed to be deemed ready.
Since we cannot send a bookmark when the lastProcessedResourceVersion is 0,
we poll aggressively for the first list RV before entering the dispatch loop.
Kubernetes-commit: a20abdb1f425b215ce969ef7114281741fce249d
The canonical import for json-patch v4 is
gopkg.in/evanphx/json-patch.v4 (see
https://github.com/evanphx/json-patch/blob/master/README.md#get-it for
reference).
Using the v4-specific path should also reduce the risk of unwanted v5
upgrade attempts, because they won't be offered as automated upgrades
by dependency upgrade management tools, and they won't happen through
indirect dependencies (see
https://github.com/kubernetes/kubernetes/pull/120327 for context).
Signed-off-by: Stephen Kitt <skitt@redhat.com>
Kubernetes-commit: 5300466a5c8988b479a151ceb77f49dd00065c83
There is no benefit of having RWMutex as we have one reader and multiple
writers. In such cases RWMutex has worse performance than Mutex.
Kubernetes-commit: 544ea424826ef60d703c5f4fb91b2c6a95f303aa
Signal is not needed as we never need to wake up when the waiting
is lowered, only when increased.
Kubernetes-commit: e6b54149bb42d58301e34872ebbcf2ea4bcfb474
Ticker behaves differently from what we want, we need a stable period
interval, but ticker doesn't provide that. From NewTicker docstring:
```
The ticker will adjust the time interval or drop ticks to make up for slow receivers.
```
Unfortunatelly there is no way to test it as the FakeClock doesn't
follow the real ticker behavior.
Kubernetes-commit: 7c0e9cda461e176959866b9c2d03b00e817e9b76
This is to mitigate CVE-2023-44487
until the Go standard library and golang.org/x/net
are fully fixed.
Signed-off-by: Jayapriya Pai <janantha@redhat.com>
Kubernetes-commit: e2503e50381cc9cc2e4a4c90f0738e54992558f8
This change makes us use the generic workqueue throughout the project in
order to improve type safety and readability of the code.
Kubernetes-commit: 6d0ac8c561a7ac66c21e4ee7bd1976c2ecedbf32
27a68aee3a4834 introduced context support for events. Creating an event
broadcaster with context makes tests more resilient against leaking goroutines
when that context gets canceled at the end of a test and enables per-test
output via ktesting.
The context could get passed to the constructor. A cleaner solution is to
enhance context support for the apiserver and then pass the context into the
controller's run method. This ripples up the call stack to all places which
start an apiserver.
Kubernetes-commit: b92273a760503cc57aba37c4d3a28554f7fec7f8
before:
go test -v -race -count 1 -run ^TestCacheWatcherDrainingNoBookmarkAfterResourceVersionReceived$
ok k8s.io/apiserver/pkg/storage/cacher 3.792s
after:
go test -v -race -count 1 -run ^TestCacheWatcherDrainingNoBookmarkAfterResourceVersionReceived$
ok k8s.io/apiserver/pkg/storage/cacher 1.783s
Kubernetes-commit: d21b86d53a3c4c42e41f8374e537c721251a00d2
xyz-li