// 2. g2 select lock `conn.PrepareContext(ctx, query)`, now db.numOpen == db.maxOpen , wait for release.
	// 3. g1 tx exec insert, wait for unlock `conn.PrepareContext(ctx, query)` to finish tx and release.
	stmt, err := conn.PrepareContext(ctx, query)
	if err != nil {
		cacheStmt.prepareErr = err
		db.Mux.Lock()
		delete(db.Stmts, query)
		db.Mux.Unlock()

	if err != nil && err != io.EOF {
		if !isErrBucketNotFound(err) {
			storageLogOnceIf(ctx, err, "erasure-list-objects-path-"+bucket)
		}
		return loi, toObjectErr(err, bucket)
	}
	defer merged.truncate(0) // Release when returning

	if contextCanceled(ctx) {
		return ListObjectVersionsInfo{}, ctx.Err()
	}

	if versionMarker == "" {
		o := listPathOptions{Marker: marker}

)

var errEtcdUnreachable = errors.New("etcd is unreachable, please check your endpoints")

func etcdErrToErr(err error, etcdEndpoints []string) error {
	if err == nil {
		return nil
	}
	switch err {
	case context.DeadlineExceeded:
		return fmt.Errorf("%w %s", errEtcdUnreachable, etcdEndpoints)
	default:
		return fmt.Errorf("unexpected error %w from etcd, please check your endpoints %s", err, etcdEndpoints)
	}
}

		Name:      versionInfo,
		Help:      "MinIO Release tag for the server",
		Type:      gaugeMetric,
	}
}

func getMinIOCommitMD() MetricDescription {
	return MetricDescription{
		Namespace: minioMetricNamespace,
		Subsystem: softwareSubsystem,
		Name:      commitInfo,
		Help:      "Git commit hash for the MinIO release",
		Type:      gaugeMetric,
	}
}

	// Renames and schedules for purging all bucket metacache.
	go renameAllBucketMetacache(diskPath)
}

// Following error message is added to fix a regression in release
// RELEASE.2018-03-16T22-52-12Z after migrating v1 to v2 to v3. This
// migration failed to capture '.This' field properly which indicates
// the disk UUID association. Below error message is returned when

		c = dobj.Container("istio-proxy")
		s := mustGetService(g, objs, "ilb-gateway").Unstructured()
		g.Expect(d).Should(HavePathValueContain(PathValue{"metadata.labels", toMap("app:istio-ingressgateway,istio:ingressgateway,release: istio")}))
		g.Expect(c).Should(HavePathValueEqual(PathValue{"resources.requests.cpu", "333m"}))
		g.Expect(c).Should(HavePathValueEqual(PathValue{"env.[name:PILOT_CERT_PROVIDER].value", "foobar"}))

		return LockContext{ctx: ctx, cancel: func() {}}, OperationTimedOut{}
	}
	timeout.LogSuccess(UTCNow().Sub(start))
	return LockContext{ctx: newCtx, cancel: cancel}, nil
}

// Unlock - block until write lock is released.
func (di *distLockInstance) Unlock(lc LockContext) {
	if lc.cancel != nil {
		lc.cancel()
	}
	di.rwMutex.Unlock(lc.ctx)
}

// RLock - block until read lock is taken or timeout has occurred.

var errDataTooSmall = errors.New("Object size smaller than expected")

// errServerNotInitialized - server not initialized.
var errServerNotInitialized = errors.New("Server not initialized, please try again")

// errRPCAPIVersionUnsupported - unsupported rpc API version.
var errRPCAPIVersionUnsupported = errors.New("Unsupported rpc API version")

// errServerTimeMismatch - server times are too far apart.

		Files:  s.Files,
		Ffree:  s.Ffree,
		FSType: getFSType(s.Fstypename[:]),
	}
	if info.Free > info.Total {
		return info, fmt.Errorf("detected free space (%d) > total drive space (%d), fs corruption at (%s). please run 'fsck'", info.Free, info.Total, path)
	}
	info.Used = info.Total - info.Free
	return info, nil
}

// GetDriveStats returns IO stats of the drive by its major:minor

	"istio.io/istio/operator/pkg/util"
	"istio.io/istio/operator/pkg/util/clog"
)

type profileDiffArgs struct {
	// manifestsPath is a path to a charts and profiles directory in the local filesystem with a release tgz.
	manifestsPath string
}

func addProfileDiffFlags(cmd *cobra.Command, args *profileDiffArgs) {
	cmd.PersistentFlags().StringVarP(&args.manifestsPath, "charts", "", "", ChartsDeprecatedStr)