blob: a69be21c73c5829c75e1593a877fa45ce05bcdab (
plain)
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
|
package shell
import (
"github.com/seaweedfs/seaweedfs/weed/util"
"io"
)
func init() {
Commands = append(Commands, &commandUnlock{})
Commands = append(Commands, &commandLock{})
}
// =========== Lock ==============
type commandLock struct {
}
func (c *commandLock) Name() string {
return "lock"
}
func (c *commandLock) Help() string {
return `lock in order to exclusively manage the cluster
This is a blocking operation if there is alread another lock.
`
}
func (c *commandLock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
commandEnv.locker.RequestLock(util.DetectedHostAddress())
return nil
}
// =========== Unlock ==============
type commandUnlock struct {
}
func (c *commandUnlock) Name() string {
return "unlock"
}
func (c *commandUnlock) Help() string {
return `unlock the cluster-wide lock
`
}
func (c *commandUnlock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
commandEnv.locker.ReleaseLock()
return nil
}
|
