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cli_unsafe_reset.go
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cli_unsafe_reset.go
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// Copyright 2021 PingCAP, Inc.
//
// Licensed 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,
// See the License for the specific language governing permissions and
// limitations under the License.
package cli
import (
"github.com/pingcap/errors"
"github.com/spf13/cobra"
"github.com/tikv/migration/cdc/pkg/cmd/context"
"github.com/tikv/migration/cdc/pkg/cmd/factory"
"github.com/tikv/migration/cdc/pkg/etcd"
"github.com/tikv/migration/cdc/pkg/txnutil/gc"
pd "github.com/tikv/pd/client"
)
// unsafeResetOptions defines flags for the `cli unsafe reset` command.
type unsafeResetOptions struct {
etcdClient *etcd.CDCEtcdClient
pdClient pd.Client
}
// newUnsafeResetOptions creates new unsafeResetOptions for the `cli unsafe reset` command.
func newUnsafeResetOptions() *unsafeResetOptions {
return &unsafeResetOptions{}
}
// complete adapts from the command line args to the data and client required.
func (o *unsafeResetOptions) complete(f factory.Factory) error {
etcdClient, err := f.EtcdClient()
if err != nil {
return err
}
o.etcdClient = etcdClient
pdClient, err := f.PdClient()
if err != nil {
return err
}
o.pdClient = pdClient
return nil
}
// run runs the `cli unsafe reset` command.
func (o *unsafeResetOptions) run(cmd *cobra.Command) error {
ctx := context.GetDefaultContext()
leases, err := o.etcdClient.GetCaptureLeases(ctx)
if err != nil {
return errors.Trace(err)
}
err = o.etcdClient.ClearAllCDCInfo(ctx)
if err != nil {
return errors.Trace(err)
}
err = o.etcdClient.RevokeAllLeases(ctx, leases)
if err != nil {
return errors.Trace(err)
}
err = gc.RemoveServiceGCSafepoint(ctx, o.pdClient, gc.CDCServiceSafePointID)
if err != nil {
return errors.Trace(err)
}
cmd.Println("reset and all metadata truncated in PD!")
return nil
}
// newCmdReset creates the `cli unsafe reset` command.
func newCmdReset(f factory.Factory, commonOptions *unsafeCommonOptions) *cobra.Command {
o := newUnsafeResetOptions()
command := &cobra.Command{
Use: "reset",
Short: "Reset the status of the TiCDC cluster, delete all meta data in etcd, confirm that you know what this command will do and use it at your own risk",
Args: cobra.NoArgs,
RunE: func(cmd *cobra.Command, args []string) error {
if err := commonOptions.confirmMetaDelete(cmd); err != nil {
return err
}
err := o.complete(f)
if err != nil {
return err
}
return o.run(cmd)
},
}
return command
}