1// Copyright 2015 The etcd Authors
2//
3// Licensed under the Apache License, Version 2.0 (the "License");
4// you may not use this file except in compliance with the License.
5// You may obtain a copy of the License at
6//
7//     http://www.apache.org/licenses/LICENSE-2.0
8//
9// Unless required by applicable law or agreed to in writing, software
10// distributed under the License is distributed on an "AS IS" BASIS,
11// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12// See the License for the specific language governing permissions and
13// limitations under the License.
14
15package etcdserver
16
17import (
18	"errors"
19	"fmt"
20)
21
22var (
23	ErrUnknownMethod              = errors.New("etcdserver: unknown method")
24	ErrStopped                    = errors.New("etcdserver: server stopped")
25	ErrCanceled                   = errors.New("etcdserver: request cancelled")
26	ErrTimeout                    = errors.New("etcdserver: request timed out")
27	ErrTimeoutDueToLeaderFail     = errors.New("etcdserver: request timed out, possibly due to previous leader failure")
28	ErrTimeoutDueToConnectionLost = errors.New("etcdserver: request timed out, possibly due to connection lost")
29	ErrTimeoutLeaderTransfer      = errors.New("etcdserver: request timed out, leader transfer took too long")
30	ErrLeaderChanged              = errors.New("etcdserver: leader changed")
31	ErrNotEnoughStartedMembers    = errors.New("etcdserver: re-configuration failed due to not enough started members")
32	ErrLearnerNotReady            = errors.New("etcdserver: can only promote a learner member which is in sync with leader")
33	ErrNoLeader                   = errors.New("etcdserver: no leader")
34	ErrNotLeader                  = errors.New("etcdserver: not leader")
35	ErrRequestTooLarge            = errors.New("etcdserver: request is too large")
36	ErrNoSpace                    = errors.New("etcdserver: no space")
37	ErrTooManyRequests            = errors.New("etcdserver: too many requests")
38	ErrUnhealthy                  = errors.New("etcdserver: unhealthy cluster")
39	ErrKeyNotFound                = errors.New("etcdserver: key not found")
40	ErrCorrupt                    = errors.New("etcdserver: corrupt cluster")
41	ErrBadLeaderTransferee        = errors.New("etcdserver: bad leader transferee")
42)
43
44type DiscoveryError struct {
45	Op  string
46	Err error
47}
48
49func (e DiscoveryError) Error() string {
50	return fmt.Sprintf("failed to %s discovery cluster (%v)", e.Op, e.Err)
51}
52