Add the ability for each event handler of a shared informer to specify
its own resync period. If not specified, a handler will resync at the
informer's default interval.
Automatic merge from submit-queue (batch tested with PRs 40873, 40948, 39580, 41065, 40815)
Make DeltaFIFO Resync atomic
Make DeltaFIFO's Resync operation atomic, so it enqueues the entire
queue before allowing adds/updates/deletes.
I'm hoping to use this to help with custom resync periods for multiple event handlers against a single shared informer (see https://github.com/kubernetes/kubernetes/pull/40759#pullrequestreview-19598213 for the motivation).
@lavalamp @smarterclayton @deads2k @liggitt @sttts @timothysc @wojtek-t @gmarek @kubernetes/sig-api-machinery-pr-reviews @kubernetes/sig-scalability-pr-reviews
Automatic merge from submit-queue (batch tested with PRs 40873, 40948, 39580, 41065, 40815)
Default target storage in etcd
To make etcd v2->v3 upgrade work correctly, we need to correctly set the "TARGET_STORAGE" env var. Since in head we are defaulting to etcd v3, this PR is defaulting also that env var to etcd3, so that by default upgrade works fine.
@fgrzadkowski @gmarek
Automatic merge from submit-queue (batch tested with PRs 40873, 40948, 39580, 41065, 40815)
Upgrade Hazelcast example with the latest hazelcast-kubernetes-bootst…
…rapper 0.8.0, using Deployments instead of Replication Controller.
**What this PR does / why we need it**:
This PR upgrade the Hazelcast example in storage folder. It would be great to be aligned with the latest version of hazelcast-kubernetes-bootstrapper
Automatic merge from submit-queue (batch tested with PRs 40873, 40948, 39580, 41065, 40815)
[CRI] Enable Hostport Feature for Dockershim
Commits:
1. Refactor common hostport util logics and add more tests
2. Add HostportManager which can ADD/DEL hostports instead of a complete sync.
3. Add Interface for retreiving portMappings information of a pod in Network Host interface.
Implement GetPodPortMappings interface in dockerService.
4. Teach kubenet to use HostportManager
Automatic merge from submit-queue
[Kubelet] Delay deletion of pod from the API server until volumes are deleted
Previous PR that was reverted: #40239.
To summarize the conclusion of the previous PR after reverting:
- The status manager has the most up-to-date status, but the volume manager uses the status from the pod manager, which only is as up-to-date as the API server.
- Because of this, the previous change required an additional round trip between the kubelet and API server.
- When few pods are being added or deleted, this is only a minor issue. However, when under heavy load, the QPS limit to the API server causes this round trip to take ~60 seconds, which is an unacceptable increase in latency. Take a look at the graphs in #40239 to see the effect of QPS changes on timing.
- To remedy this, the volume manager looks at the status from the status manager, which eliminates the round trip.
cc: @vishh @derekwaynecarr @sjenning @jingxu97 @kubernetes/sig-storage-misc
Automatic merge from submit-queue
add deads2k to approvers for controllers
I've done significant maintenance on these for a while and introduced new patterns like shared informers and rate limited work queues.
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avoid repeated length calculation and some other code improvements
**What this PR does / why we need it**:
1. in function `ParsePairs`, calculating `invalidBuf`'s length over and over again brings performance penalty. a `invalidBufNonEmpty` bool value can fix this.
2. pairArg is not a string template and also there is no other arguments for `fmt.Sprintf`, so i remove `fmt.Sprintf`
3. in function `DumpReaderToFile`, we must check nil error first before defer statement, otherwise there maybe a potential nil error on `f.Close()`
4. add nil checks into `GetWideFlag` function
5. some other minor code improvements for better readability.
Signed-off-by: bruceauyeung <ouyang.qinhua@zte.com.cn>
Automatic merge from submit-queue
Removed a space in portforward.go.
**What this PR does / why we need it**:
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes #
**Special notes for your reviewer**:
**Release note**:
```release-note
```
Automatic merge from submit-queue (batch tested with PRs 40175, 41107, 41111, 40893, 40919)
[Federation][e2e] Move Cluster Registration to federation-up.sh
**What this PR does / why we need it**:
Remove cluster register/unregister calls from test case BeforeEach/AfterEach blocks.
Register clusters once in federation-up.sh
**Which issue this PR fixes** *(optional, in `fixes #<issue number>(, fixes #<issue_number>, ...)` format, will close that issue when PR gets merged)*: fixes#40768
**Special notes for your reviewer**:
**Release note**: `NONE`
cc: @madhusudancs @kubernetes/sig-federation-pr-reviews
