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2a4c00de9d
issue: #37115 the old implementation update shard cache and shard client manager at same time, which causes lots of conor case due to concurrent issue without lock. This PR decouple shard client manager from shard cache, so only shard cache will be updated if delegator changes. and make sure shard client manager will always return the right client, and create a new client if not exist. in case of client leak, shard client manager will purge client in async for every 10 minutes. --------- Signed-off-by: Wei Liu <wei.liu@zilliz.com>
54 lines
1.7 KiB
Go
54 lines
1.7 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 proxy
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import (
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"context"
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"go.uber.org/atomic"
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"github.com/milvus-io/milvus/internal/proto/internalpb"
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"github.com/milvus-io/milvus/pkg/util/merr"
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)
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type RoundRobinBalancer struct {
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idx atomic.Int64
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}
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func NewRoundRobinBalancer() *RoundRobinBalancer {
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return &RoundRobinBalancer{}
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}
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func (b *RoundRobinBalancer) RegisterNodeInfo(nodeInfos []nodeInfo) {}
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func (b *RoundRobinBalancer) SelectNode(ctx context.Context, availableNodes []int64, cost int64) (int64, error) {
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if len(availableNodes) == 0 {
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return -1, merr.ErrNodeNotAvailable
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}
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idx := b.idx.Inc()
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return availableNodes[int(idx)%len(availableNodes)], nil
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}
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func (b *RoundRobinBalancer) CancelWorkload(node int64, nq int64) {
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}
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func (b *RoundRobinBalancer) UpdateCostMetrics(node int64, cost *internalpb.CostAggregation) {}
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func (b *RoundRobinBalancer) Start(ctx context.Context) {}
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func (b *RoundRobinBalancer) Close() {}
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