wehub-resource-sync
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72 lines
2.5 KiB
Go
72 lines
2.5 KiB
Go
// Licensed to the LF AI & Data foundation under one
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// or more contributor license agreements. See the NOTICE file
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// distributed with this work for additional information
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// regarding copyright ownership. The ASF licenses this file
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// to you under the Apache License, Version 2.0 (the
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// "License"); you may not use this file except in compliance
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// with the License. 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 datanode
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import (
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"github.com/milvus-io/milvus/internal/datanode/compactor"
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"github.com/milvus-io/milvus/internal/datanode/importv2"
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"github.com/milvus-io/milvus/internal/datanode/index"
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"github.com/milvus-io/milvus/internal/flushcommon/io"
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"github.com/milvus-io/milvus/pkg/v3/metrics"
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)
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// initPools eagerly constructs the DataNode's long-lived goroutine pools so that
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// the first Prometheus scrape (which calls collectPoolStats) is a pure read and
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// never triggers pool creation, config-watch registration, or worker warmup as a
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// side effect of metric collection. Each getter is idempotent (sync.Once), so this
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// is safe to call once at startup.
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func initPools() {
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compactor.GetExecPool()
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index.GetVecIndexBuildPool()
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importv2.GetExecPool()
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io.GetOrCreateIOPool()
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io.GetOrCreateStatsPool()
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}
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// collectPoolStats returns current thread-count stats for the DataNode's
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// long-lived goroutine pools. It is registered with metrics.SetDataNodePoolCollectFn
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// and invoked at Prometheus scrape time (pull model), mirroring the QueryNode path.
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func collectPoolStats() []metrics.PoolStats {
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type poolRef struct {
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name string
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pool interface {
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Cap() int
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Running() int
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Waiting() int
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}
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}
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refs := []poolRef{
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{"CompactionExecPool", compactor.GetExecPool()},
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{"IndexBuildPool", index.GetVecIndexBuildPool()},
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{"ImportExecPool", importv2.GetExecPool()},
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{"IOPool", io.GetOrCreateIOPool()},
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{"StatsPool", io.GetOrCreateStatsPool()},
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}
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stats := make([]metrics.PoolStats, 0, len(refs))
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for _, r := range refs {
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stats = append(stats, metrics.PoolStats{
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Name: r.name,
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Cap: r.pool.Cap(),
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Running: r.pool.Running(),
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Waiting: r.pool.Waiting(),
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})
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}
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return stats
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}
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