* etcd3: watcher logging error ([#32831](https://github.com/kubernetes/kubernetes/pull/32831), [@hongchaodeng](https://github.com/hongchaodeng))
* etcd: watcher centralize error handling ([#32907](https://github.com/kubernetes/kubernetes/pull/32907), [@hongchaodeng](https://github.com/hongchaodeng))
* etcd: stop watcher when watch channel is closed ([#33003](https://github.com/kubernetes/kubernetes/pull/33003), [@hongchaodeng](https://github.com/hongchaodeng))

* etcd version 2.2.1
  * etcd version 3.0.14 [has also been validated](https://k8s-gubernator.appspot.com/builds/kubernetes-jenkins/logs/ci-kubernetes-e2e-gce-etcd3/) but does require [specific configuration steps](https://coreos.com/blog/migrating-applications-etcd-v3.html)

## Changelog since v1.5.0-beta.3

### Other notable changes

			writeErrorResponse(ctx, w, toAPIError(ctx, err), r.URL)
			return
		}
	}

	var compressMetadata map[string]string
	// No need to compress for remote etcd calls
	// Pass the decompressed stream to such calls.
	isDstCompressed := isCompressible(r.Header, dstObject) &&
		length > minCompressibleSize &&
		!isRemoteCopyRequired(ctx, srcBucket, dstBucket, objectAPI)

		testCases = append(testCases,
			newTestSuiteIAM(bt, false),
			newTestSuiteIAM(bt, true),
		)
	}
	for i, testCase := range testCases {
		etcdStr := ""
		if testCase.withEtcdBackend {
			etcdStr = " (with etcd backend)"
		}
		t.Run(
			fmt.Sprintf("Test: %d, ServerType: %s%s", i+1, testCase.serverType, etcdStr),
			func(t *testing.T) {
				runAllIAMSTSTests(testCase, &check{t, testCase.serverType})
			},
		)
	}
}