forked from openark/orchestrator
/
async_request_dao.go
150 lines (135 loc) · 4.07 KB
/
async_request_dao.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
137
138
139
140
141
142
143
144
145
146
147
148
149
150
/*
Copyright 2015 Shlomi Noach, courtesy Booking.com
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 logic
import (
"fmt"
"github.com/github/orchestrator/go/config"
"github.com/github/orchestrator/go/db"
"github.com/github/orchestrator/go/inst"
"github.com/openark/golib/log"
"github.com/openark/golib/sqlutils"
)
// WriteAsyncRequest
func WriteAsyncRequest(asyncRequest *AsyncRequest) error {
if asyncRequest.OperatedInstanceKey == nil {
return log.Errorf("WriteAsyncRequest received asyncRequest.OperatedInstanceKey for command %+v", asyncRequest.Command)
}
destinationKey := asyncRequest.DestinationKey
if destinationKey == nil {
destinationKey = &inst.InstanceKey{}
}
writeFunc := func() error {
_, err := db.ExecOrchestrator(`
insert into async_request (
command, hostname, port, destination_hostname, destination_port, pattern, gtid_hint, story, begin_timestamp, end_timestamp
) values (
?, ?, ?, ?, ?, ?, ?, ?, NULL, NULL
)
`, asyncRequest.Command, asyncRequest.OperatedInstanceKey.Hostname, asyncRequest.OperatedInstanceKey.Port,
destinationKey.Hostname, destinationKey.Port, asyncRequest.Pattern, string(asyncRequest.GTIDHint), asyncRequest.Story,
)
return log.Errore(err)
}
return inst.ExecDBWriteFunc(writeFunc)
}
func ReadPendingAsyncRequests(limit int) (res [](*AsyncRequest), err error) {
limitClause := ``
args := sqlutils.Args()
if limit > 0 {
limitClause = `limit ?`
args = append(args, limit)
}
query := fmt.Sprintf(`
select
request_id,
command,
hostname,
port,
destination_hostname,
destination_port,
pattern,
gtid_hint,
story
from
async_request
where
begin_timestamp IS NULL
order by
request_id asc
%s
`, limitClause)
err = db.QueryOrchestrator(query, args, func(m sqlutils.RowMap) error {
asyncRequest := NewEmptyAsyncRequest()
asyncRequest.Id = m.GetInt64("request_id")
asyncRequest.Command = m.GetString("command")
asyncRequest.OperatedInstanceKey = &inst.InstanceKey{}
asyncRequest.OperatedInstanceKey.Hostname = m.GetString("hostname")
asyncRequest.OperatedInstanceKey.Port = m.GetInt("port")
if m.GetString("destination_hostname") != "" {
asyncRequest.DestinationKey = &inst.InstanceKey{}
asyncRequest.DestinationKey.Hostname = m.GetString("destination_hostname")
asyncRequest.DestinationKey.Port = m.GetInt("destination_port")
}
asyncRequest.Pattern = m.GetString("pattern")
asyncRequest.GTIDHint = inst.OperationGTIDHint(m.GetString("gtid_hint"))
asyncRequest.Story = m.GetString("story")
res = append(res, asyncRequest)
return nil
})
if err != nil {
log.Errore(err)
}
return res, err
}
func BeginAsyncRequest(asyncRequest *AsyncRequest) (bool, error) {
sqlResult, err := db.ExecOrchestrator(`
update
async_request
set
begin_timestamp = NOW()
where
request_id = ?
and begin_timestamp IS NULL
`, asyncRequest.Id,
)
if err != nil {
return false, log.Errore(err)
}
rows, err := sqlResult.RowsAffected()
return (rows > 0), err
}
// ExpireAsyncRequests will mark "lost" entries as being completed
func ExpireAsyncRequests() error {
_, err := db.ExecOrchestrator(`
update
async_request
set
end_timestamp = NOW()
where
end_timestamp IS NULL
and begin_timestamp < NOW() - INTERVAL ? MINUTE
`, config.Config.MaintenanceExpireMinutes,
)
if err != nil {
log.Errore(err)
}
_, err = db.ExecOrchestrator(`
delete from
async_request
where
end_timestamp IS NOT NULL
and begin_timestamp < NOW() - INTERVAL ? DAY
`, config.Config.MaintenancePurgeDays,
)
return log.Errore(err)
}