milvus/cmd/components/data_node.go
chyezh 0c7474d7e8
enhance: add graceful stop timeout to avoid node stop hang under extreme cases (#30317)
1. add coordinator graceful stop timeout to 5s
2. change the order of datacoord component while stop
3. change querynode grace stop timeout to 900s, and we should
potentially change this to 600s when graceful stop is smooth

issue: #30310
also see pr: #30306

---------

Signed-off-by: chyezh <chyezh@outlook.com>
2024-02-29 17:01:50 +08:00

81 lines
2.4 KiB
Go

// Licensed to the LF AI & Data foundation under one
// or more contributor license agreements. See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership. The ASF licenses this file
// to you 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 components
import (
"context"
"time"
"go.uber.org/zap"
"github.com/milvus-io/milvus-proto/go-api/v2/commonpb"
"github.com/milvus-io/milvus-proto/go-api/v2/milvuspb"
grpcdatanode "github.com/milvus-io/milvus/internal/distributed/datanode"
"github.com/milvus-io/milvus/internal/util/dependency"
"github.com/milvus-io/milvus/pkg/log"
"github.com/milvus-io/milvus/pkg/util/paramtable"
"github.com/milvus-io/milvus/pkg/util/typeutil"
)
// DataNode implements DataNode grpc server
type DataNode struct {
ctx context.Context
svr *grpcdatanode.Server
}
// NewDataNode creates a new DataNode
func NewDataNode(ctx context.Context, factory dependency.Factory) (*DataNode, error) {
svr, err := grpcdatanode.NewServer(ctx, factory)
if err != nil {
return nil, err
}
return &DataNode{
ctx: ctx,
svr: svr,
}, nil
}
// Run starts service
func (d *DataNode) Run() error {
if err := d.svr.Run(); err != nil {
log.Error("DataNode starts error", zap.Error(err))
return err
}
log.Debug("Datanode successfully started")
return nil
}
// Stop terminates service
func (d *DataNode) Stop() error {
timeout := paramtable.Get().DataNodeCfg.GracefulStopTimeout.GetAsDuration(time.Second)
return exitWhenStopTimeout(d.svr.Stop, timeout)
}
// GetComponentStates returns DataNode's states
func (d *DataNode) Health(ctx context.Context) commonpb.StateCode {
resp, err := d.svr.GetComponentStates(ctx, &milvuspb.GetComponentStatesRequest{})
if err != nil {
return commonpb.StateCode_Abnormal
}
return resp.State.GetStateCode()
}
func (d *DataNode) GetName() string {
return typeutil.DataNodeRole
}