tabletconn

package
Version: v2.1.1+incompatible Latest Latest
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Published: May 22, 2017 License: BSD-3-Clause Imports: 9 Imported by: 0

Documentation

Index

Constants

This section is empty.

Variables

View Source
var (
	// ConnClosed is returned when the underlying connection was closed.
	ConnClosed = vterrors.New(vtrpcpb.Code_UNAVAILABLE, "vttablet: Connection Closed")
)
View Source
var (
	// TabletProtocol is exported for unit tests
	TabletProtocol = flag.String("tablet_protocol", "grpc", "how to talk to the vttablets")
)

Functions

func ErrorFromGRPC

func ErrorFromGRPC(err error) error

ErrorFromGRPC converts a GRPC error to vtError for tabletserver calls.

func ErrorFromVTRPC

func ErrorFromVTRPC(err *vtrpcpb.RPCError) error

ErrorFromVTRPC converts a *vtrpcpb.RPCError to vtError for tabletserver calls.

func RegisterDialer

func RegisterDialer(name string, dialer TabletDialer)

RegisterDialer is meant to be used by TabletDialer implementations to self register.

Types

type TabletDialer

type TabletDialer func(tablet *topodatapb.Tablet, timeout time.Duration) (queryservice.QueryService, error)

TabletDialer represents a function that will return a QueryService object that can communicate with a tablet. Only the tablet's HostName and PortMap should be used (and maybe the alias for debug messages).

When using this TabletDialer to talk to a l2vtgate, only the Hostname will be set to the full address to dial. Implementations should detect this use case as the portmap will then be empty.

timeout represents the connection timeout. If set to 0, this connection should be established in the background and the TabletDialer should return right away.

func GetDialer

func GetDialer() TabletDialer

GetDialer returns the dialer to use, described by the command line flag

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