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60 lines
1.7 KiB
60 lines
1.7 KiB
// Copyright 2020 PingCAP, Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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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// See the License for the specific language governing permissions and
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// limitations under the License.
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package telemetry
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import (
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"context"
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"github.com/google/uuid"
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"github.com/pingcap/errors"
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"go.etcd.io/etcd/clientv3"
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)
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const (
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// trackingIDKey is a random tracking for the cluster that is saved to etcd. Tracking ID can be reset by user.
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trackingIDKey = "/tidb/telemetry/tracking_id"
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)
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// ResetTrackingID generates a new tracking ID.
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func ResetTrackingID(etcdClient *clientv3.Client) (string, error) {
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if etcdClient == nil {
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return "", nil
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}
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id := uuid.New().String()
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ctx, cancel := context.WithTimeout(context.Background(), etcdOpTimeout)
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defer cancel()
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_, err := etcdClient.Put(ctx, trackingIDKey, id)
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if err != nil {
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return "", errors.Trace(err)
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}
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return id, nil
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}
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// GetTrackingID gets the current tracking ID.
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// It is possible that return value is empty, which means the ID is not generated yet.
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func GetTrackingID(etcdClient *clientv3.Client) (string, error) {
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if etcdClient == nil {
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return "", nil
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}
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ctx, cancel := context.WithTimeout(context.Background(), etcdOpTimeout)
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defer cancel()
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resp, err := etcdClient.Get(ctx, trackingIDKey)
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if err != nil {
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return "", errors.Trace(err)
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}
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if len(resp.Kvs) == 0 {
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return "", nil
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}
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return string(resp.Kvs[0].Value), nil
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}
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