forked from cockroachdb/cockroach
/
replica_consistency_queue.go
83 lines (72 loc) · 2.46 KB
/
replica_consistency_queue.go
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// Copyright 2016 The Cockroach Authors.
//
// 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.
//
// Author: Vivek Menezes (vivek@cockroachlabs.com)
package storage
import (
"time"
"golang.org/x/net/context"
"github.com/cockroachdb/cockroach/pkg/config"
"github.com/cockroachdb/cockroach/pkg/gossip"
"github.com/cockroachdb/cockroach/pkg/roachpb"
"github.com/cockroachdb/cockroach/pkg/util/hlc"
"github.com/cockroachdb/cockroach/pkg/util/log"
)
const (
replicaConsistencyQueueSize = 100
)
type replicaConsistencyQueue struct {
*baseQueue
}
// newReplicaConsistencyQueue returns a new instance of replicaConsistencyQueue.
func newReplicaConsistencyQueue(store *Store, gossip *gossip.Gossip) *replicaConsistencyQueue {
rcq := &replicaConsistencyQueue{}
rcq.baseQueue = newBaseQueue(
"replica consistency checker", rcq, store, gossip,
queueConfig{
maxSize: replicaConsistencyQueueSize,
needsLease: true,
acceptsUnsplitRanges: true,
successes: store.metrics.ConsistencyQueueSuccesses,
failures: store.metrics.ConsistencyQueueFailures,
pending: store.metrics.ConsistencyQueuePending,
processingNanos: store.metrics.ConsistencyQueueProcessingNanos,
},
)
return rcq
}
func (*replicaConsistencyQueue) shouldQueue(
_ context.Context, _ hlc.Timestamp, _ *Replica, _ config.SystemConfig,
) (bool, float64) {
return true, 1.0
}
// process() is called on every range for which this node is a lease holder.
func (q *replicaConsistencyQueue) process(
ctx context.Context, _ hlc.Timestamp, r *Replica, _ config.SystemConfig,
) error {
req := roachpb.CheckConsistencyRequest{}
_, pErr := r.CheckConsistency(ctx, req)
if pErr != nil {
log.Error(ctx, pErr.GoError())
}
return nil
}
func (*replicaConsistencyQueue) timer() time.Duration {
// Some interval between replicas.
return 10 * time.Second
}
// purgatoryChan returns nil.
func (*replicaConsistencyQueue) purgatoryChan() <-chan struct{} {
return nil
}