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55 lines
1002 B
55 lines
1002 B
package shell
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import (
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"github.com/seaweedfs/seaweedfs/weed/util"
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"io"
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)
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func init() {
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Commands = append(Commands, &commandUnlock{})
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Commands = append(Commands, &commandLock{})
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}
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// =========== Lock ==============
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type commandLock struct {
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}
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func (c *commandLock) Name() string {
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return "lock"
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}
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func (c *commandLock) Help() string {
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return `lock in order to exclusively manage the cluster
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This is a blocking operation if there is alread another lock.
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`
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}
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func (c *commandLock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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commandEnv.locker.RequestLock(util.DetectedHostAddress())
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return nil
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}
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// =========== Unlock ==============
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type commandUnlock struct {
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}
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func (c *commandUnlock) Name() string {
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return "unlock"
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}
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func (c *commandUnlock) Help() string {
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return `unlock the cluster-wide lock
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`
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}
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func (c *commandUnlock) Do(args []string, commandEnv *CommandEnv, writer io.Writer) (err error) {
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commandEnv.locker.ReleaseLock()
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return nil
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}
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