errors.go

Documentation: go.etcd.io/etcd/server/v3/etcdserver

     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  
    15  package etcdserver
    16  
    17  import (
    18  	"errors"
    19  	"fmt"
    20  )
    21  
    22  var (
    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  	ErrTimeoutWaitAppliedIndex       = errors.New("etcdserver: request timed out, waiting for the applied index took too long")
    31  	ErrLeaderChanged                 = errors.New("etcdserver: leader changed")
    32  	ErrNotEnoughStartedMembers       = errors.New("etcdserver: re-configuration failed due to not enough started members")
    33  	ErrLearnerNotReady               = errors.New("etcdserver: can only promote a learner member which is in sync with leader")
    34  	ErrNoLeader                      = errors.New("etcdserver: no leader")
    35  	ErrNotLeader                     = errors.New("etcdserver: not leader")
    36  	ErrRequestTooLarge               = errors.New("etcdserver: request is too large")
    37  	ErrNoSpace                       = errors.New("etcdserver: no space")
    38  	ErrTooManyRequests               = errors.New("etcdserver: too many requests")
    39  	ErrUnhealthy                     = errors.New("etcdserver: unhealthy cluster")
    40  	ErrKeyNotFound                   = errors.New("etcdserver: key not found")
    41  	ErrCorrupt                       = errors.New("etcdserver: corrupt cluster")
    42  	ErrBadLeaderTransferee           = errors.New("etcdserver: bad leader transferee")
    43  	ErrClusterVersionUnavailable     = errors.New("etcdserver: cluster version not found during downgrade")
    44  	ErrWrongDowngradeVersionFormat   = errors.New("etcdserver: wrong downgrade target version format")
    45  	ErrInvalidDowngradeTargetVersion = errors.New("etcdserver: invalid downgrade target version")
    46  	ErrDowngradeInProcess            = errors.New("etcdserver: cluster has a downgrade job in progress")
    47  	ErrNoInflightDowngrade           = errors.New("etcdserver: no inflight downgrade job")
    48  )
    49  
    50  type DiscoveryError struct {
    51  	Op  string
    52  	Err error
    53  }
    54  
    55  func (e DiscoveryError) Error() string {
    56  	return fmt.Sprintf("failed to %s discovery cluster (%v)", e.Op, e.Err)
    57  }
    58
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