vitess.io/vitess@v0.16.2/go/vt/throttler/replication_lag_record.go (about)

     1  /*
     2  Copyright 2019 The Vitess Authors.
     3  
     4  Licensed under the Apache License, Version 2.0 (the "License");
     5  you may not use this file except in compliance with the License.
     6  You may obtain a copy of the License at
     7  
     8      http://www.apache.org/licenses/LICENSE-2.0
     9  
    10  Unless required by applicable law or agreed to in writing, software
    11  distributed under the License is distributed on an "AS IS" BASIS,
    12  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13  See the License for the specific language governing permissions and
    14  limitations under the License.
    15  */
    16  
    17  package throttler
    18  
    19  import (
    20  	"time"
    21  
    22  	"vitess.io/vitess/go/vt/discovery"
    23  )
    24  
    25  // replicationLagRecord stores the tablet health data for a given point in time.
    26  // This data is obtained via the HealthCheck module.
    27  type replicationLagRecord struct {
    28  	// time is the time at which "value" was observed.
    29  	time time.Time
    30  
    31  	// LegacyTabletStats holds a copy of the current health data of the tablet.
    32  	discovery.TabletHealth
    33  }
    34  
    35  func (r replicationLagRecord) isZero() bool {
    36  	return r.Stats == nil && r.time.IsZero()
    37  }
    38  
    39  func (r replicationLagRecord) lag() int64 {
    40  	return int64(r.Stats.ReplicationLagSeconds)
    41  }