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add(store): add syncer for identical queries on test and oracle store
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,123 @@ | ||
| // Copyright 2019 ScyllaDB | ||
| // | ||
| // 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 store | ||
|
|
||
| import ( | ||
| "context" | ||
|
|
||
| "github.com/scylladb/gocqlx/v2/qb" | ||
|
|
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| "github.com/scylladb/gemini/pkg/typedef" | ||
| ) | ||
|
|
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| // CheckSyncer helps to synchronize start time of identical check queries on oracle store and on test store | ||
| type CheckSyncer struct { | ||
| msgChan chan checkMsg | ||
| } | ||
|
|
||
| type checkMsg struct { | ||
| builder qb.Builder | ||
| ctx context.Context | ||
| values *typedef.Values | ||
| err error | ||
| rows *[]map[string]interface{} | ||
| } | ||
|
|
||
| // InitCheckSyncer creates CheckSyncer. CheckSyncer should be created for each 'validationJob' goroutine. | ||
| func (ds delegatingStore) InitCheckSyncer(ctx context.Context) CheckSyncer { | ||
| syncer := CheckSyncer{ | ||
| msgChan: make(chan checkMsg), | ||
| } | ||
| go func() { | ||
| var msg checkMsg | ||
| exit: | ||
| for { | ||
| select { | ||
| case msg = <-syncer.msgChan: | ||
| msg.rows = &[]map[string]interface{}{} | ||
| *msg.rows, msg.err = ds.oracleStore.load(msg.ctx, msg.builder, *msg.values) | ||
| msg.values = nil | ||
| syncer.msgChan <- msg | ||
| case <-ctx.Done(): | ||
| continue exit | ||
| } | ||
| } | ||
| }() | ||
| return syncer | ||
| } | ||
|
|
||
| // oracleSend send parallel check request on oracle store | ||
| func (s *CheckSyncer) oracleSend(ctx context.Context, builder qb.Builder, values typedef.Values) { | ||
| s.msgChan <- checkMsg{ | ||
| ctx: ctx, | ||
| builder: builder, | ||
| values: &values, | ||
| } | ||
| } | ||
|
|
||
| // oracleGet get response from ran parallel check request on oracle store by oracleSend | ||
| func (s *CheckSyncer) oracleGet() ([]map[string]interface{}, error) { | ||
| get := <-s.msgChan | ||
| return *get.rows, get.err | ||
| } | ||
|
|
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| // MutateSyncer helps to synchronize start time of identical mutate queries on oracle store and on test store | ||
| type MutateSyncer struct { | ||
| msgChan chan mutateMsg | ||
| } | ||
|
|
||
| type mutateMsg struct { | ||
| builder qb.Builder | ||
| ctx context.Context | ||
| values *typedef.Values | ||
| err error | ||
| } | ||
|
|
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| // InitMutateSyncer creates MutateSyncer. MutateSyncer should be created for each 'mutationJob' and 'warmupJob' goroutine. | ||
| func (ds delegatingStore) InitMutateSyncer(ctx context.Context) MutateSyncer { | ||
| syncer := MutateSyncer{ | ||
| msgChan: make(chan mutateMsg), | ||
| } | ||
| go func() { | ||
| var msg mutateMsg | ||
| exit: | ||
| for { | ||
| select { | ||
| case msg = <-syncer.msgChan: | ||
| msg.err = ds.oracleStore.mutate(msg.ctx, msg.builder, *msg.values) | ||
| msg.values = nil | ||
| syncer.msgChan <- msg | ||
| case <-ctx.Done(): | ||
| continue exit | ||
| } | ||
| } | ||
| }() | ||
| return syncer | ||
| } | ||
|
|
||
| // oracleSend send parallel mutate request on oracle store | ||
| func (s *MutateSyncer) oracleSend(ctx context.Context, builder qb.Builder, values typedef.Values) { | ||
| s.msgChan <- mutateMsg{ | ||
| ctx: ctx, | ||
| builder: builder, | ||
| values: &values, | ||
| } | ||
| } | ||
|
|
||
| // oracleGet get response from ran parallel mutate request on oracle store by oracleSend | ||
| func (s *MutateSyncer) oracleGet() error { | ||
| msg := <-s.msgChan | ||
| return msg.err | ||
| } |