-
Notifications
You must be signed in to change notification settings - Fork 712
/
gc_client.go
136 lines (125 loc) · 4.46 KB
/
gc_client.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
// Copyright 2023 TiKV Project Authors.
//
// 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,
// 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 pd
import (
"context"
"time"
"github.com/opentracing/opentracing-go"
"github.com/pingcap/kvproto/pkg/pdpb"
"github.com/pingcap/log"
"github.com/tikv/pd/client/errs"
"go.uber.org/zap"
)
// GCClient is a client for doing GC
type GCClient interface {
UpdateGCSafePointV2(ctx context.Context, keyspaceID uint32, safePoint uint64) (uint64, error)
UpdateServiceSafePointV2(ctx context.Context, keyspaceID uint32, serviceID string, ttl int64, safePoint uint64) (uint64, error)
WatchGCSafePointV2(ctx context.Context, revision int64) (chan []*pdpb.SafePointEvent, error)
}
// UpdateGCSafePointV2 update gc safe point for the given keyspace.
func (c *client) UpdateGCSafePointV2(ctx context.Context, keyspaceID uint32, safePoint uint64) (uint64, error) {
if span := opentracing.SpanFromContext(ctx); span != nil && span.Tracer() != nil {
span = span.Tracer().StartSpan("pdclient.UpdateGCSafePointV2", opentracing.ChildOf(span.Context()))
defer span.Finish()
}
start := time.Now()
defer func() { cmdDurationUpdateGCSafePointV2.Observe(time.Since(start).Seconds()) }()
ctx, cancel := context.WithTimeout(ctx, c.option.timeout)
req := &pdpb.UpdateGCSafePointV2Request{
Header: c.requestHeader(),
KeyspaceId: keyspaceID,
SafePoint: safePoint,
}
protoClient, ctx := c.getClientAndContext(ctx)
if protoClient == nil {
cancel()
return 0, errs.ErrClientGetProtoClient
}
resp, err := protoClient.UpdateGCSafePointV2(ctx, req)
cancel()
if err = c.respForErr(cmdFailedDurationUpdateGCSafePointV2, start, err, resp.GetHeader()); err != nil {
return 0, err
}
return resp.GetNewSafePoint(), nil
}
// UpdateServiceSafePointV2 update service safe point for the given keyspace.
func (c *client) UpdateServiceSafePointV2(ctx context.Context, keyspaceID uint32, serviceID string, ttl int64, safePoint uint64) (uint64, error) {
if span := opentracing.SpanFromContext(ctx); span != nil && span.Tracer() != nil {
span = span.Tracer().StartSpan("pdclient.UpdateServiceSafePointV2", opentracing.ChildOf(span.Context()))
defer span.Finish()
}
start := time.Now()
defer func() { cmdDurationUpdateServiceSafePointV2.Observe(time.Since(start).Seconds()) }()
ctx, cancel := context.WithTimeout(ctx, c.option.timeout)
req := &pdpb.UpdateServiceSafePointV2Request{
Header: c.requestHeader(),
KeyspaceId: keyspaceID,
ServiceId: []byte(serviceID),
SafePoint: safePoint,
Ttl: ttl,
}
protoClient, ctx := c.getClientAndContext(ctx)
if protoClient == nil {
cancel()
return 0, errs.ErrClientGetProtoClient
}
resp, err := protoClient.UpdateServiceSafePointV2(ctx, req)
cancel()
if err = c.respForErr(cmdFailedDurationUpdateServiceSafePointV2, start, err, resp.GetHeader()); err != nil {
return 0, err
}
return resp.GetMinSafePoint(), nil
}
// WatchGCSafePointV2 watch gc safe point change.
func (c *client) WatchGCSafePointV2(ctx context.Context, revision int64) (chan []*pdpb.SafePointEvent, error) {
SafePointEventsChan := make(chan []*pdpb.SafePointEvent)
req := &pdpb.WatchGCSafePointV2Request{
Header: c.requestHeader(),
Revision: revision,
}
ctx, cancel := context.WithTimeout(ctx, c.option.timeout)
defer cancel()
protoClient, ctx := c.getClientAndContext(ctx)
if protoClient == nil {
return nil, errs.ErrClientGetProtoClient
}
stream, err := protoClient.WatchGCSafePointV2(ctx, req)
if err != nil {
close(SafePointEventsChan)
return nil, err
}
go func() {
defer func() {
close(SafePointEventsChan)
if r := recover(); r != nil {
log.Error("[pd] panic in gc client `WatchGCSafePointV2`", zap.Any("error", r))
return
}
}()
for {
select {
case <-ctx.Done():
return
default:
resp, err := stream.Recv()
if err != nil {
log.Error("watch gc safe point v2 error", errs.ZapError(errs.ErrClientWatchGCSafePointV2Stream, err))
return
}
SafePointEventsChan <- resp.GetEvents()
}
}
}()
return SafePointEventsChan, err
}