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Update federation target to etcd/clientv3 (#6119)

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With CoreDNS now supporting etcdv3 as the DNS backend, we
can update our federation target to etcdv3. Users will now be
able to use etcdv3 server as the federation backbone.

Minio will update bucket data to etcdv3 and CoreDNS can pick
that data up and serve it as bucket style DNS path.
This commit is contained in:
Nitish Tiwari
2018-07-13 02:42:40 +05:30
committed by kannappanr
parent adf7340394
commit 2aa18cafc6
338 changed files with 72570 additions and 67988 deletions
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42
vendor/google.golang.org/grpc/stats/handlers.go generated vendored
View File

@@ -1,33 +1,18 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
* Copyright 2016 gRPC authors.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* http://www.apache.org/licenses/LICENSE-2.0
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
@@ -45,19 +30,22 @@ type ConnTagInfo struct {
RemoteAddr net.Addr
// LocalAddr is the local address of the corresponding connection.
LocalAddr net.Addr
// TODO add QOS related fields.
}
// RPCTagInfo defines the relevant information needed by RPC context tagger.
type RPCTagInfo struct {
// FullMethodName is the RPC method in the format of /package.service/method.
FullMethodName string
// FailFast indicates if this RPC is failfast.
// This field is only valid on client side, it's always false on server side.
FailFast bool
}
// Handler defines the interface for the related stats handling (e.g., RPCs, connections).
type Handler interface {
// TagRPC can attach some information to the given context.
// The returned context is used in the rest lifetime of the RPC.
// The context used for the rest lifetime of the RPC will be derived from
// the returned context.
TagRPC(context.Context, *RPCTagInfo) context.Context
// HandleRPC processes the RPC stats.
HandleRPC(context.Context, RPCStats)

149
vendor/google.golang.org/grpc/stats/stats.go generated vendored
View File

@@ -1,36 +1,23 @@
/*
*
* Copyright 2016, Google Inc.
* All rights reserved.
* Copyright 2016 gRPC authors.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following disclaimer
* in the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
* http://www.apache.org/licenses/LICENSE-2.0
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*/
//go:generate protoc --go_out=plugins=grpc:. grpc_testing/test.proto
// Package stats is for collecting and reporting various network and RPC stats.
// This package is for monitoring purpose only. All fields are read-only.
// All APIs are experimental.
@@ -39,6 +26,8 @@ package stats // import "google.golang.org/grpc/stats"
import (
"net"
"time"
"golang.org/x/net/context"
)
// RPCStats contains stats information about RPCs.
@@ -49,7 +38,7 @@ type RPCStats interface {
}
// Begin contains stats when an RPC begins.
// FailFast are only valid if Client is true.
// FailFast is only valid if this Begin is from client side.
type Begin struct {
// Client is true if this Begin is from client side.
Client bool
@@ -59,7 +48,7 @@ type Begin struct {
FailFast bool
}
// IsClient indicates if this is from client side.
// IsClient indicates if the stats information is from client side.
func (s *Begin) IsClient() bool { return s.Client }
func (s *Begin) isRPCStats() {}
@@ -80,19 +69,19 @@ type InPayload struct {
RecvTime time.Time
}
// IsClient indicates if this is from client side.
// IsClient indicates if the stats information is from client side.
func (s *InPayload) IsClient() bool { return s.Client }
func (s *InPayload) isRPCStats() {}
// InHeader contains stats when a header is received.
// FullMethod, addresses and Compression are only valid if Client is false.
type InHeader struct {
// Client is true if this InHeader is from client side.
Client bool
// WireLength is the wire length of header.
WireLength int
// The following fields are valid only if Client is false.
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
// RemoteAddr is the remote address of the corresponding connection.
@@ -103,7 +92,7 @@ type InHeader struct {
Compression string
}
// IsClient indicates if this is from client side.
// IsClient indicates if the stats information is from client side.
func (s *InHeader) IsClient() bool { return s.Client }
func (s *InHeader) isRPCStats() {}
@@ -116,7 +105,7 @@ type InTrailer struct {
WireLength int
}
// IsClient indicates if this is from client side.
// IsClient indicates if the stats information is from client side.
func (s *InTrailer) IsClient() bool { return s.Client }
func (s *InTrailer) isRPCStats() {}
@@ -137,19 +126,17 @@ type OutPayload struct {
SentTime time.Time
}
// IsClient indicates if this is from client side.
// IsClient indicates if this stats information is from client side.
func (s *OutPayload) IsClient() bool { return s.Client }
func (s *OutPayload) isRPCStats() {}
// OutHeader contains stats when a header is sent.
// FullMethod, addresses and Compression are only valid if Client is true.
type OutHeader struct {
// Client is true if this OutHeader is from client side.
Client bool
// WireLength is the wire length of header.
WireLength int
// The following fields are valid only if Client is true.
// FullMethod is the full RPC method string, i.e., /package.service/method.
FullMethod string
// RemoteAddr is the remote address of the corresponding connection.
@@ -160,7 +147,7 @@ type OutHeader struct {
Compression string
}
// IsClient indicates if this is from client side.
// IsClient indicates if this stats information is from client side.
func (s *OutHeader) IsClient() bool { return s.Client }
func (s *OutHeader) isRPCStats() {}
@@ -173,7 +160,7 @@ type OutTrailer struct {
WireLength int
}
// IsClient indicates if this is from client side.
// IsClient indicates if this stats information is from client side.
func (s *OutTrailer) IsClient() bool { return s.Client }
func (s *OutTrailer) isRPCStats() {}
@@ -182,9 +169,13 @@ func (s *OutTrailer) isRPCStats() {}
type End struct {
// Client is true if this End is from client side.
Client bool
// BeginTime is the time when the RPC began.
BeginTime time.Time
// EndTime is the time when the RPC ends.
EndTime time.Time
// Error is the error just happened. It implements status.Status if non-nil.
// Error is the error the RPC ended with. It is an error generated from
// status.Status and can be converted back to status.Status using
// status.FromError if non-nil.
Error error
}
@@ -221,3 +212,85 @@ type ConnEnd struct {
func (s *ConnEnd) IsClient() bool { return s.Client }
func (s *ConnEnd) isConnStats() {}
type incomingTagsKey struct{}
type outgoingTagsKey struct{}
// SetTags attaches stats tagging data to the context, which will be sent in
// the outgoing RPC with the header grpc-tags-bin. Subsequent calls to
// SetTags will overwrite the values from earlier calls.
//
// NOTE: this is provided only for backward compatibility with existing clients
// and will likely be removed in an upcoming release. New uses should transmit
// this type of data using metadata with a different, non-reserved (i.e. does
// not begin with "grpc-") header name.
func SetTags(ctx context.Context, b []byte) context.Context {
return context.WithValue(ctx, outgoingTagsKey{}, b)
}
// Tags returns the tags from the context for the inbound RPC.
//
// NOTE: this is provided only for backward compatibility with existing clients
// and will likely be removed in an upcoming release. New uses should transmit
// this type of data using metadata with a different, non-reserved (i.e. does
// not begin with "grpc-") header name.
func Tags(ctx context.Context) []byte {
b, _ := ctx.Value(incomingTagsKey{}).([]byte)
return b
}
// SetIncomingTags attaches stats tagging data to the context, to be read by
// the application (not sent in outgoing RPCs).
//
// This is intended for gRPC-internal use ONLY.
func SetIncomingTags(ctx context.Context, b []byte) context.Context {
return context.WithValue(ctx, incomingTagsKey{}, b)
}
// OutgoingTags returns the tags from the context for the outbound RPC.
//
// This is intended for gRPC-internal use ONLY.
func OutgoingTags(ctx context.Context) []byte {
b, _ := ctx.Value(outgoingTagsKey{}).([]byte)
return b
}
type incomingTraceKey struct{}
type outgoingTraceKey struct{}
// SetTrace attaches stats tagging data to the context, which will be sent in
// the outgoing RPC with the header grpc-trace-bin. Subsequent calls to
// SetTrace will overwrite the values from earlier calls.
//
// NOTE: this is provided only for backward compatibility with existing clients
// and will likely be removed in an upcoming release. New uses should transmit
// this type of data using metadata with a different, non-reserved (i.e. does
// not begin with "grpc-") header name.
func SetTrace(ctx context.Context, b []byte) context.Context {
return context.WithValue(ctx, outgoingTraceKey{}, b)
}
// Trace returns the trace from the context for the inbound RPC.
//
// NOTE: this is provided only for backward compatibility with existing clients
// and will likely be removed in an upcoming release. New uses should transmit
// this type of data using metadata with a different, non-reserved (i.e. does
// not begin with "grpc-") header name.
func Trace(ctx context.Context) []byte {
b, _ := ctx.Value(incomingTraceKey{}).([]byte)
return b
}
// SetIncomingTrace attaches stats tagging data to the context, to be read by
// the application (not sent in outgoing RPCs). It is intended for
// gRPC-internal use.
func SetIncomingTrace(ctx context.Context, b []byte) context.Context {
return context.WithValue(ctx, incomingTraceKey{}, b)
}
// OutgoingTrace returns the trace from the context for the outbound RPC. It is
// intended for gRPC-internal use.
func OutgoingTrace(ctx context.Context) []byte {
b, _ := ctx.Value(outgoingTraceKey{}).([]byte)
return b
}