- List operations against the API now return internal server errors instead of partially complete lists when a value cannot be transformed from storage. The updated behavior is consistent with all other operations that require transforming data from storage such as watch and get. ([#69399](https://github.com/kubernetes/kubernetes/pull/69399), [@mikedanese](h...

  optional string selfLink = 4;

  // UID is the unique in time and space value for this object. It is typically generated by
  // the server on successful creation of a resource and is not allowed to change on PUT
  // operations.
  //
  // Populated by the system.
  // Read-only.
  // More info: https://kubernetes.io/docs/concepts/overview/working-with-objects/names#uids
  // +optional
  optional string uid = 5;

  headers: Headers?,
) {
  internal val lock: ReentrantLock = ReentrantLock()
  val condition: Condition = lock.newCondition()

  // Internal state is guarded by [lock]. No long-running or potentially blocking operations are
  // performed while the lock is held.

  /** The bytes consumed and acknowledged by the stream. */
  val readBytes: WindowCounter = WindowCounter(id)

  /** The total number of bytes produced by the application. */

#### Rationale

- SSE-C requires application to remember the keys for all GET/PUT operations, any unfortunate loss of keys would automatically mean the objects cannot be accessed anymore.
- SSE-C is hardly adopted by most widely used applications, applications prefer server to manage the keys via SSE-KMS or SSE-S3.

```JSON
{"item_id": 5, "q": "somequery"}
```

Damit haben Sie bereits eine API erstellt, welche:

* HTTP-Anfragen auf den _Pfaden_ `/` und `/items/{item_id}` entgegennimmt.
* Beide _Pfade_ erhalten `GET` Operationen (auch bekannt als HTTP _Methoden_).
* Der _Pfad_ `/items/{item_id}` hat einen _Pfadparameter_ `item_id`, der ein `int` sein sollte.
* Der _Pfad_ `/items/{item_id}` hat einen optionalen `str` _Query Parameter_ `q`.

	c.Assert(err, nil)

	// Compare putContent and getContent.
	c.Assert(string(getContent), putContent[2048:2059])
}

// TestGetObjectErrors - Tests validate error response for invalid object operations.
func (s *TestSuiteCommon) TestGetObjectErrors(c *check) {
	// generate a random bucket name.
	bucketName := getRandomBucketName()

	// HTTP request to create the bucket.

	// For hardrives it is possible to set this to a lower value to avoid any
	// spike in latency. But currently we are simply keeping it optimal for SSDs.

	// bigFileThreshold is the point where we add readahead to put operations.
	bigFileThreshold = 128 * humanize.MiByte

	// XL metadata file carries per object metadata.
	xlStorageFormatFile = "xl.meta"

	// XL metadata file backup file carries previous per object metadata.

 * read-write locks. Conceptually, lock striping is the technique of dividing a lock into many
 * <i>stripes</i>, increasing the granularity of a single lock and allowing independent operations
 * to lock different stripes and proceed concurrently, instead of creating contention for a single
 * lock.
 *
 * <p>The guarantee provided by this class is that equal keys lead to the same lock (or semaphore),

```JSON
{"item_id": 5, "q": "somequery"}
```

Hai appena creato un'API che:

* Riceve richieste HTTP sui _paths_ `/` and `/items/{item_id}`.
* Entrambi i _paths_ accettano`GET` operations (conosciuti anche come <abbr title="metodi HTTP">HTTP _methods_</abbr>).
* Il _path_ `/items/{item_id}` ha un _path parameter_ `item_id` che deve essere un `int`.

With the release of Kubernetes 1.18, an alpha version of CSI Proxy for Windows is getting released. CSI proxy enables non-privileged (pre-approved) containers to perform privileged storage operations on Windows. CSI drivers can now be supported in Windows by leveraging CSI proxy.
SIG Storage made a lot of progress in the 1.18 release.
In particular, the following storage features are moving to GA in Kubernetes 1.18: