mirror of
https://github.com/etcd-io/etcd.git
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109 lines
3.5 KiB
Go
109 lines
3.5 KiB
Go
// Copyright 2015 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package txn
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import (
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"fmt"
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"reflect"
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"strings"
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"time"
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"github.com/golang/protobuf/proto"
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pb "go.etcd.io/etcd/api/v3/etcdserverpb"
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"go.uber.org/zap"
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)
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func WarnOfExpensiveRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, reqStringer fmt.Stringer, respMsg proto.Message, err error) {
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if time.Since(now) <= warningApplyDuration {
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return
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}
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var resp string
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if !isNil(respMsg) {
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resp = fmt.Sprintf("size:%d", proto.Size(respMsg))
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}
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warnOfExpensiveGenericRequest(lg, warningApplyDuration, now, reqStringer, "", resp, err)
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}
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func WarnOfFailedRequest(lg *zap.Logger, now time.Time, reqStringer fmt.Stringer, respMsg proto.Message, err error) {
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var resp string
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if !isNil(respMsg) {
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resp = fmt.Sprintf("size:%d", proto.Size(respMsg))
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}
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d := time.Since(now)
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lg.Warn(
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"failed to apply request",
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zap.Duration("took", d),
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zap.String("request", reqStringer.String()),
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zap.String("response", resp),
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zap.Error(err),
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)
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}
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func WarnOfExpensiveReadOnlyTxnRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, r *pb.TxnRequest, txnResponse *pb.TxnResponse, err error) {
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if time.Since(now) <= warningApplyDuration {
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return
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}
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reqStringer := pb.NewLoggableTxnRequest(r)
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var resp string
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if !isNil(txnResponse) {
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var resps []string
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for _, r := range txnResponse.Responses {
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switch r.Response.(type) {
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case *pb.ResponseOp_ResponseRange:
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if op := r.GetResponseRange(); op != nil {
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resps = append(resps, fmt.Sprintf("range_response_count:%d", len(op.GetKvs())))
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} else {
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resps = append(resps, "range_response:nil")
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}
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default:
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// only range responses should be in a read only txn request
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}
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}
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resp = fmt.Sprintf("responses:<%s> size:%d", strings.Join(resps, " "), txnResponse.Size())
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}
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warnOfExpensiveGenericRequest(lg, warningApplyDuration, now, reqStringer, "read-only txn ", resp, err)
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}
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func WarnOfExpensiveReadOnlyRangeRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, reqStringer fmt.Stringer, rangeResponse *pb.RangeResponse, err error) {
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if time.Since(now) <= warningApplyDuration {
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return
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}
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var resp string
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if !isNil(rangeResponse) {
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resp = fmt.Sprintf("range_response_count:%d size:%d", len(rangeResponse.Kvs), rangeResponse.Size())
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}
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warnOfExpensiveGenericRequest(lg, warningApplyDuration, now, reqStringer, "read-only range ", resp, err)
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}
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// callers need make sure time has passed warningApplyDuration
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func warnOfExpensiveGenericRequest(lg *zap.Logger, warningApplyDuration time.Duration, now time.Time, reqStringer fmt.Stringer, prefix string, resp string, err error) {
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lg.Warn(
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"apply request took too long",
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zap.Duration("took", time.Since(now)),
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zap.Duration("expected-duration", warningApplyDuration),
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zap.String("prefix", prefix),
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zap.String("request", reqStringer.String()),
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zap.String("response", resp),
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zap.Error(err),
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)
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slowApplies.Inc()
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}
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func isNil(msg proto.Message) bool {
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return msg == nil || reflect.ValueOf(msg).IsNil()
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}
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