/
scan_executor.go
73 lines (61 loc) · 2.01 KB
/
scan_executor.go
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// Copyright 2014-2022 Aerospike, 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,
// 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.
package aerospike
import (
"time"
)
func (clnt *Client) scanPartitions(policy *ScanPolicy, tracker *partitionTracker, namespace string, setName string, recordset *Recordset, binNames ...string) {
defer recordset.signalEnd()
// for exponential backoff
interval := policy.SleepBetweenRetries
var errs Error
for {
list, err := tracker.assignPartitionsToNodes(clnt.Cluster(), namespace)
if err != nil {
errs = chainErrors(err, errs)
recordset.sendError(errs)
tracker.partitionError()
return
}
maxConcurrentNodes := policy.MaxConcurrentNodes
if maxConcurrentNodes <= 0 {
maxConcurrentNodes = len(list)
}
if recordset.IsActive() {
weg := newWeightedErrGroup(maxConcurrentNodes)
for _, nodePartition := range list {
cmd := newScanPartitionCommand(policy, tracker, nodePartition, namespace, setName, binNames, recordset)
weg.execute(cmd)
}
errs = chainErrors(weg.wait(), errs)
}
if done, err := tracker.isClusterComplete(clnt.Cluster(), &policy.BasePolicy); !recordset.IsActive() || done || err != nil {
errs = chainErrors(err, errs)
// Scan is complete.
if errs != nil {
tracker.partitionError()
recordset.sendError(errs)
}
return
}
if policy.SleepBetweenRetries > 0 {
// Sleep before trying again.
time.Sleep(interval)
if policy.SleepMultiplier > 1 {
interval = time.Duration(float64(interval) * policy.SleepMultiplier)
}
}
recordset.resetTaskID()
}
}