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metrics: add infoschema v2 cache hit/miss/evict (#54268)
ref #50959
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,46 @@ | ||
| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // 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 infoschema | ||
|
|
||
| import ( | ||
| "github.com/pingcap/tidb/pkg/metrics" | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
|
|
||
| type sieveStatusHookImpl struct { | ||
| evict prometheus.Counter | ||
| hit prometheus.Counter | ||
| miss prometheus.Counter | ||
| } | ||
|
|
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| func newSieveStatusHookImpl() *sieveStatusHookImpl { | ||
| return &sieveStatusHookImpl{ | ||
| evict: metrics.InfoSchemaV2CacheCounter.WithLabelValues("evict"), | ||
| hit: metrics.InfoSchemaV2CacheCounter.WithLabelValues("hit"), | ||
| miss: metrics.InfoSchemaV2CacheCounter.WithLabelValues("miss"), | ||
| } | ||
| } | ||
|
|
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| func (s *sieveStatusHookImpl) onEvict() { | ||
| s.evict.Inc() | ||
| } | ||
|
|
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| func (s *sieveStatusHookImpl) onHit() { | ||
| s.hit.Inc() | ||
| } | ||
|
|
||
| func (s *sieveStatusHookImpl) onMiss() { | ||
| s.miss.Inc() | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,35 @@ | ||
| // Copyright 2024 PingCAP, Inc. | ||
| // | ||
| // 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 metrics | ||
|
|
||
| import ( | ||
| "github.com/prometheus/client_golang/prometheus" | ||
| ) | ||
|
|
||
| var ( | ||
| // InfoSchemaV2CacheCounter records the counter of infoschema v2 cache hit/miss/evict. | ||
| InfoSchemaV2CacheCounter *prometheus.CounterVec | ||
| ) | ||
|
|
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| // InitInfoSchemaV2Metrics intializes infoschema v2 related metrics. | ||
| func InitInfoSchemaV2Metrics() { | ||
| InfoSchemaV2CacheCounter = NewCounterVec( | ||
| prometheus.CounterOpts{ | ||
| Namespace: "tidb", | ||
| Subsystem: "domain", | ||
| Name: "infoschema_v2_cache", | ||
| Help: "infoschema cache v2 hit, evict and miss number", | ||
| }, []string{LblType}) | ||
| } |
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