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When etcdserver receives a LeaseRenew request, it may be still in progress of processing the LeaseGrantRequest on exact the same leaseID. Accordingly it may return a TTL=0 to client due to the leaseID not found error. So the leader should wait for the appliedID to be available before processing client requests.
58 lines
3.0 KiB
Go
58 lines
3.0 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package etcdserver
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import (
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"errors"
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"fmt"
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)
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var (
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ErrUnknownMethod = errors.New("etcdserver: unknown method")
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ErrStopped = errors.New("etcdserver: server stopped")
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ErrCanceled = errors.New("etcdserver: request cancelled")
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ErrTimeout = errors.New("etcdserver: request timed out")
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ErrTimeoutDueToLeaderFail = errors.New("etcdserver: request timed out, possibly due to previous leader failure")
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ErrTimeoutDueToConnectionLost = errors.New("etcdserver: request timed out, possibly due to connection lost")
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ErrTimeoutLeaderTransfer = errors.New("etcdserver: request timed out, leader transfer took too long")
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ErrTimeoutWaitAppliedIndex = errors.New("etcdserver: request timed out, waiting for the applied index took too long")
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ErrLeaderChanged = errors.New("etcdserver: leader changed")
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ErrNotEnoughStartedMembers = errors.New("etcdserver: re-configuration failed due to not enough started members")
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ErrLearnerNotReady = errors.New("etcdserver: can only promote a learner member which is in sync with leader")
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ErrNoLeader = errors.New("etcdserver: no leader")
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ErrNotLeader = errors.New("etcdserver: not leader")
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ErrRequestTooLarge = errors.New("etcdserver: request is too large")
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ErrNoSpace = errors.New("etcdserver: no space")
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ErrTooManyRequests = errors.New("etcdserver: too many requests")
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ErrUnhealthy = errors.New("etcdserver: unhealthy cluster")
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ErrKeyNotFound = errors.New("etcdserver: key not found")
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ErrCorrupt = errors.New("etcdserver: corrupt cluster")
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ErrBadLeaderTransferee = errors.New("etcdserver: bad leader transferee")
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ErrClusterVersionUnavailable = errors.New("etcdserver: cluster version not found during downgrade")
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ErrWrongDowngradeVersionFormat = errors.New("etcdserver: wrong downgrade target version format")
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ErrInvalidDowngradeTargetVersion = errors.New("etcdserver: invalid downgrade target version")
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ErrDowngradeInProcess = errors.New("etcdserver: cluster has a downgrade job in progress")
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ErrNoInflightDowngrade = errors.New("etcdserver: no inflight downgrade job")
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)
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type DiscoveryError struct {
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Op string
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Err error
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}
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func (e DiscoveryError) Error() string {
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return fmt.Sprintf("failed to %s discovery cluster (%v)", e.Op, e.Err)
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}
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