go.etcd.io/etcd@v3.3.27+incompatible/mvcc/metrics_txn.go (about)

     1  // Copyright 2017 The etcd Authors
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package mvcc
    16  
    17  import (
    18  	"github.com/coreos/etcd/lease"
    19  )
    20  
    21  type metricsTxnWrite struct {
    22  	TxnWrite
    23  	ranges  uint
    24  	puts    uint
    25  	deletes uint
    26  	putSize int64
    27  }
    28  
    29  func newMetricsTxnRead(tr TxnRead) TxnRead {
    30  	return &metricsTxnWrite{&txnReadWrite{tr}, 0, 0, 0, 0}
    31  }
    32  
    33  func newMetricsTxnWrite(tw TxnWrite) TxnWrite {
    34  	return &metricsTxnWrite{tw, 0, 0, 0, 0}
    35  }
    36  
    37  func (tw *metricsTxnWrite) Range(key, end []byte, ro RangeOptions) (*RangeResult, error) {
    38  	tw.ranges++
    39  	return tw.TxnWrite.Range(key, end, ro)
    40  }
    41  
    42  func (tw *metricsTxnWrite) DeleteRange(key, end []byte) (n, rev int64) {
    43  	tw.deletes++
    44  	return tw.TxnWrite.DeleteRange(key, end)
    45  }
    46  
    47  func (tw *metricsTxnWrite) Put(key, value []byte, lease lease.LeaseID) (rev int64) {
    48  	tw.puts++
    49  	size := int64(len(key) + len(value))
    50  	tw.putSize += size
    51  	return tw.TxnWrite.Put(key, value, lease)
    52  }
    53  
    54  func (tw *metricsTxnWrite) End() {
    55  	defer tw.TxnWrite.End()
    56  	if sum := tw.ranges + tw.puts + tw.deletes; sum > 1 {
    57  		txnCounter.Inc()
    58  	}
    59  	rangeCounter.Add(float64(tw.ranges))
    60  	putCounter.Add(float64(tw.puts))
    61  	totalPutSizeGauge.Add(float64(tw.putSize))
    62  	deleteCounter.Add(float64(tw.deletes))
    63  }