Files
zapdb/y/event_log.go
Martin GartonandIbrahim Jarif 52135f29c3 Add EventLogging option (#1035)
This introduces an option to disable or enable trace.EventLog logging of
events.  For backward compatibility this defaults to true.

The reason for making this configurable is that under some workloads the
cost of event logging is significant and so can cause performance
issues.

Fixes https://github.com/dgraph-io/badger/issues/938
2019-09-18 15:10:54 +05:30

32 lines
911 B
Go

/*
* Copyright 2019 Dgraph Labs, Inc. and Contributors
*
* 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 y
import "golang.org/x/net/trace"
var (
NoEventLog trace.EventLog = nilEventLog{}
)
type nilEventLog struct{}
func (nel nilEventLog) Printf(format string, a ...interface{}) {}
func (nel nilEventLog) Errorf(format string, a ...interface{}) {}
func (nel nilEventLog) Finish() {}