github.com/matrixorigin/matrixone@v0.7.0/pkg/sql/plan/function/builtin/ctl/cmd_checkpoint.go (about)

     1  // Copyright 2021 - 2022 Matrix Origin
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //      http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package ctl
    16  
    17  import (
    18  	"time"
    19  
    20  	"github.com/fagongzi/util/protoc"
    21  	"github.com/matrixorigin/matrixone/pkg/container/types"
    22  	pb "github.com/matrixorigin/matrixone/pkg/pb/ctl"
    23  	"github.com/matrixorigin/matrixone/pkg/vm/engine/tae/db"
    24  	"github.com/matrixorigin/matrixone/pkg/vm/process"
    25  )
    26  
    27  func handleCheckpoint() handleFunc {
    28  	return getDNHandlerFunc(
    29  		pb.CmdMethod_Checkpoint,
    30  		func(_ string) ([]uint64, error) {
    31  			return nil, nil
    32  		},
    33  		func(dnShardID uint64, parameter string, proc *process.Process) ([]byte, error) {
    34  			flushDuration := time.Duration(0)
    35  			var err error
    36  			if parameter != "" {
    37  				flushDuration, err = time.ParseDuration(parameter)
    38  				if err != nil {
    39  					return nil, err
    40  				}
    41  			}
    42  			payload, err := types.Encode((db.Checkpoint{
    43  				FlushDuration: flushDuration,
    44  			}))
    45  			return payload, err
    46  		},
    47  		func(data []byte) (interface{}, error) {
    48  			resp := pb.DNStringResponse{}
    49  			protoc.MustUnmarshal(&resp, data)
    50  			return resp, nil
    51  		})
    52  }