mirror of https://github.com/milvus-io/milvus.git
70 lines
2.1 KiB
Go
70 lines
2.1 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 importv2
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import (
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"context"
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"runtime"
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"sync"
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"go.uber.org/zap"
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"github.com/milvus-io/milvus/pkg/config"
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"github.com/milvus-io/milvus/pkg/log"
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"github.com/milvus-io/milvus/pkg/util/conc"
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"github.com/milvus-io/milvus/pkg/util/paramtable"
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)
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var (
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execPool *conc.Pool[any]
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execPoolInitOnce sync.Once
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)
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func initExecPool() {
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pt := paramtable.Get()
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initPoolSize := paramtable.Get().DataNodeCfg.MaxConcurrentImportTaskNum.GetAsInt()
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execPool = conc.NewPool[any](
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initPoolSize,
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conc.WithPreAlloc(false), // pre alloc must be false to resize pool dynamically, use warmup to alloc worker here
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conc.WithDisablePurge(true),
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)
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conc.WarmupPool(execPool, runtime.LockOSThread)
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watchKey := pt.DataNodeCfg.MaxConcurrentImportTaskNum.Key
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pt.Watch(watchKey, config.NewHandler(watchKey, resizeExecPool))
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log.Info("init import execution pool done", zap.Int("size", initPoolSize))
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}
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func resizeExecPool(evt *config.Event) {
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if evt.HasUpdated {
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newSize := paramtable.Get().DataNodeCfg.MaxConcurrentImportTaskNum.GetAsInt()
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log := log.Ctx(context.Background()).With(zap.Int("newSize", newSize))
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err := GetExecPool().Resize(newSize)
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if err != nil {
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log.Warn("failed to resize pool", zap.Error(err))
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return
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}
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log.Info("pool resize successfully")
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}
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}
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func GetExecPool() *conc.Pool[any] {
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execPoolInitOnce.Do(initExecPool)
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return execPool
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}
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