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operator_aggregation.go
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/
operator_aggregation.go
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// Copyright 2016 DeepFabric, Inc.
//
// 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
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// See the License for the specific language governing permissions and
// limitations under the License.
package pdserver
import (
"fmt"
"time"
"github.com/fagongzi/log"
"github.com/deepfabric/elasticell/pkg/pb/pdpb"
)
const (
maxOperatorWaitTime = 5 * time.Minute
)
// aggregationOperator is the aggregations all operator on the same cell
type aggregationOperator struct {
CellID uint64 `json:"cellID"`
StartAt time.Time `json:"startAt"`
EndAt time.Time `json:"endAt"`
LastIndex int `json:"lastIndex"`
Ops []Operator `json:"ops"`
}
func (op *aggregationOperator) String() string {
return fmt.Sprintf("%+v", *op)
}
func (op *aggregationOperator) GetCellID() uint64 {
return op.CellID
}
func (op *aggregationOperator) GetResourceKind() ResourceKind {
return op.Ops[0].GetResourceKind()
}
func (op *aggregationOperator) Do(target *CellInfo) (*pdpb.CellHeartbeatRsp, bool) {
if time.Since(op.StartAt) > maxOperatorWaitTime {
log.Errorf("scheduler: operator timeout, operator=<%s>", op)
return nil, true
}
// If an operator is not finished, do it.
for ; op.LastIndex < len(op.Ops); op.LastIndex++ {
if res, finished := op.Ops[op.LastIndex].Do(target); !finished {
return res, false
}
}
op.EndAt = time.Now()
return nil, true
}