return false
		}

		// Finally, if there is no parent policy, check if a policy claim is
		// present in the session token.
		if len(policies) == 0 {
			// If there is no parent policy mapping, we fall back to
			// using policy claim from JWT.
			policySet, ok := args.GetPolicies(iamPolicyClaimNameOpenID())
			if !ok {
				// When claims are set, it should have a policy claim field.
				return false
			}

		// Note that url.Parse does the unescaping
		cpSrcPath = u.Path
	}

	srcBucket, srcObject := path2BucketObject(cpSrcPath)
	// If source object is empty or bucket is empty, reply back invalid copy source.
	if srcObject == "" || srcBucket == "" {
		writeErrorResponse(ctx, w, errorCodes.ToAPIErr(ErrInvalidCopySource), r.URL)
		return
	}

	if vid != "" && vid != nullVersionID {

#!/usr/bin/env bash

set -e

export GORACE="history_size=7"
export MINIO_API_REQUESTS_MAX=10000

for d in $(go list ./...); do
	CGO_ENABLED=1 go test -v -race --timeout 100m "$d"

// Region help is documented in default config
var (
	SiteHelp = HelpKVS{
		HelpKV{
			Key:         NameKey,
			Type:        "string",
			Description: `name for the site e.g. "cal-rack0"`,
			Optional:    true,
		},
		HelpKV{
			Key:         RegionKey,
			Type:        "string",
			Description: `name of the location of the server e.g. "us-west-1"`,
			Optional:    true,
		},
		HelpKV{

			// these quotes.
			addr = strings.Trim(match[1], `"`)
		}
	}

	return addr
}

// GetSourceIPRaw retrieves the IP from the request headers
// and falls back to r.RemoteAddr when necessary.
// however returns without bracketing.
func GetSourceIPRaw(r *http.Request) string {
	addr := GetSourceIPFromHeaders(r)
	if addr == "" {
		addr = r.RemoteAddr
	}

		h := xxh3.Hash(dst)
		dst = binary.LittleEndian.AppendUint32(dst, uint32(h))
	}
	return m.parent.send(m.ctx, dst)
}

// RequestStateless will send a single payload request and stream back results.
// req may not be read/written to after calling.
// TODO: Not implemented
func (m *muxClient) RequestStateless(h HandlerID, req []byte, out chan<- Response) {
	if m.init {

Date: Tue, 21 Jul 2020 00:36:14 GMT
```

### Checking cluster health for maintenance

You may query the cluster probe endpoint to check if the node which received the request can be taken down for maintenance, if the server replies back '412 Precondition Failed' this means you will lose HA. '200 OK' means you are okay to proceed.

```
curl http://minio1:9001/minio/health/cluster?maintenance=true
HTTP/1.1 412 Precondition Failed
Accept-Ranges: bytes

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size, disability, ethnicity, gender identity and expression, level of experience,
nationality, personal appearance, race, religion, or sexual identity and
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## Our Standards

Examples of behavior that contributes to creating a positive environment
include:

* Using welcoming and inclusive language

		// See https://github.com/golang/go/blob/f7c5cbb82087c55aa82081e931e0142783700ce8/src/net/sendfile_linux.go#L20
		// Windows can lock up with this optimization, so we fall back to regular copy.
		sr, ok := rc.(*sendFileReader)
		if ok {
			// Sendfile sends in 4MiB chunks per sendfile syscall which is more than enough
			// for most setups.
			_, err = rf.ReadFrom(sr.Reader)

}

const (
	lockRetryInterval = 50 * time.Millisecond
)

// lockLoop will acquire either a read or a write lock
//
// The call will block until the lock is granted using a built-in
// timing randomized back-off algorithm to try again until successful
func (lm *LRWMutex) lockLoop(ctx context.Context, id, source string, timeout time.Duration, isWriteLock bool) (locked bool) {
	r := rand.New(rand.NewSource(time.Now().UnixNano()))