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cli_changefeed_helper.go
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/
cli_changefeed_helper.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 (
"context"
"fmt"
"io"
"strings"
"time"
"github.com/pingcap/errors"
"github.com/spf13/cobra"
"github.com/tikv/client-go/v2/oracle"
"github.com/tikv/migration/cdc/cdc"
"github.com/tikv/migration/cdc/cdc/model"
"github.com/tikv/migration/cdc/pkg/cmd/util"
"github.com/tikv/migration/cdc/pkg/etcd"
"github.com/tikv/migration/cdc/pkg/httputil"
"github.com/tikv/migration/cdc/pkg/security"
)
const (
// tsGapWarning specifies the OOM threshold.
// 1 day in milliseconds
tsGapWarning = 86400 * 1000
)
// confirmLargeDataGap checks if a large data gap is used.
func confirmLargeDataGap(cmd *cobra.Command, currentPhysical int64, startTs uint64) error {
tsGap := currentPhysical - oracle.ExtractPhysical(startTs)
if tsGap > tsGapWarning {
cmd.Printf("Replicate lag (%s) is larger than 1 days, "+
"large data may cause OOM, confirm to continue at your own risk [Y/N]\n",
time.Duration(tsGap)*time.Millisecond,
)
var yOrN string
_, err := fmt.Scan(&yOrN)
if err != nil {
return err
}
if strings.ToLower(strings.TrimSpace(yOrN)) != "y" {
return errors.NewNoStackError("abort changefeed create or resume")
}
}
return nil
}
// sendOwnerChangefeedQuery sends owner changefeed query request.
func sendOwnerChangefeedQuery(ctx context.Context, etcdClient *etcd.CDCEtcdClient,
id model.ChangeFeedID, credential *security.Credential,
) (string, error) {
owner, err := getOwnerCapture(ctx, etcdClient)
if err != nil {
return "", err
}
scheme := util.HTTP
if credential.IsTLSEnabled() {
scheme = util.HTTPS
}
url := fmt.Sprintf("%s://%s/capture/owner/changefeed/query", scheme, owner.AdvertiseAddr)
httpClient, err := httputil.NewClient(credential)
if err != nil {
return "", err
}
resp, err := httpClient.PostForm(url, map[string][]string{
cdc.APIOpVarChangefeedID: {id},
})
if err != nil {
return "", err
}
body, err := io.ReadAll(resp.Body)
if err != nil {
return "", errors.BadRequestf("query changefeed simplified status")
}
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
return "", errors.BadRequestf("%s", string(body))
}
return string(body), nil
}
// sendOwnerAdminChangeQuery sends owner admin query request.
func sendOwnerAdminChangeQuery(ctx context.Context, etcdClient *etcd.CDCEtcdClient, job model.AdminJob, credential *security.Credential) error {
owner, err := getOwnerCapture(ctx, etcdClient)
if err != nil {
return err
}
scheme := util.HTTP
if credential.IsTLSEnabled() {
scheme = util.HTTPS
}
url := fmt.Sprintf("%s://%s/capture/owner/admin", scheme, owner.AdvertiseAddr)
httpClient, err := httputil.NewClient(credential)
if err != nil {
return err
}
forceRemoveOpt := "false"
if job.Opts != nil && job.Opts.ForceRemove {
forceRemoveOpt = "true"
}
resp, err := httpClient.PostForm(url, map[string][]string{
cdc.APIOpVarAdminJob: {fmt.Sprint(int(job.Type))},
cdc.APIOpVarChangefeedID: {job.CfID},
cdc.APIOpForceRemoveChangefeed: {forceRemoveOpt},
})
if err != nil {
return err
}
if resp.StatusCode < 200 || resp.StatusCode >= 300 {
body, err := io.ReadAll(resp.Body)
if err != nil {
return errors.BadRequestf("admin changefeed failed")
}
return errors.BadRequestf("%s", string(body))
}
return nil
}