大家好，又见面了，我是全栈君。
Python编写memcached启动脚本
测试环境：CentOS 7
Python版本： 2.7
安装memcached：输入下面命令安装并用脚本测试
|
1
|
yum install -y memcached libmemcached libevent
|
测试方法：把脚本内容粘贴到rc.py文件中，shell下运行如果下命令：
|
1
|
python rc.py start
|
一、rc 脚本的start、stop、restart、status方法
|
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
|
#/usr/bin/env python
# -*- coding:utf-8 -*-
# @time :2018/1/12 19:11
# @Author :FengXiaoqing
# @file :rc.py
import os
import sys
from subprocess import Popen,PIPE
class Process(object):
'''memcached rc script'''
def __init__(self,name,program,args,workdir):
self.name = name
self.program = program
self.args = args
self.workdir = workdir
def _init(self):
'''/var/tmp/memcached'''
if not os.path.exists(self.workdir):
os.mkdir(self.workdir)
os.chdir(self.workdir)
def _pidFile(self):
'''/var/tmp/memcached/memcached.pid'''
return os.path.join(self.workdir,"%s.pid" % self.name)
def _writhPid(self):
if self.pid:
with open(self._pidFile(),'w') as fd:
fd.write(str(self.pid))
def start(self):
pid = self._getPid()
if pid:
print "%s is already runnig..." % self.name
sys.exit()
self._init()
cmd = self.program + ' ' + self.args
p = Popen(cmd,stdout=PIPE,shell=True)
self.pid = p.pid
self._writhPid()
print "%s start Sucessful.." % self.name
def _getPid(self):
p = Popen(['pidof',self.name],stdout = PIPE)
pid = p.stdout.read().strip()
return pid
def stop(self):
pid = self._getPid()
if pid:
os.kill(int(pid),15)
if os.path.exists(self._pidFile()):
os.remove(self._pidFile())
print ("%s is stopped .") % self.name
def restart(self):
self.stop()
self.start()
def status(self):
pid = self._getPid()
if pid:
print "%s is already running..." % self.name
else:
print "%s is not running..." % self.name
def _help(self):
print ("Usage: %s {start|stop|status|restart}") % __file__
def main():
name = 'memcached'
prog = '/usr/bin/memcached'
args = '-u nobody -p 11211 -c 1024 -m 64'
wd = '/var/tmp/memcached'
pm = Process(name = name,
program=prog,
args=args,
workdir=wd)
try:
cmd = sys.argv[1]
except IndexError,e:
print ("Option error")
sys.exit()
if cmd == 'start':
pm.start()
elif cmd == 'stop':
pm.stop()
elif cmd == 'restart':
pm.restart()
elif cmd == 'status':
pm.status()
else:
pm._help()
if __name__ == '__main__':
main()
|
二、rc脚本的(以daemon方式启动)
|
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
|
#/usr/bin/env python
# -*- coding:utf-8 -*-
# @time :2018/1/12 21:18
# @Author :FengXiaoqing
# @file :rc-d.py
import os
import sys
from subprocess import Popen,PIPE
class Process(object):
'''memcached rc script'''
args = {'USER':'memcached',
'PORT':11211,
'MAXCONN':1024,
'CACHESIZE':64,
'OPTIONS': ''}
def __init__(self,name,program,workdir):
self.name = name
self.program = program
self.workdir = workdir
def _init(self):
'''/var/tmp/memcached'''
if not os.path.exists(self.workdir):
os.mkdir(self.workdir)
os.chdir(self.workdir)
def _pidFile(self):
'''/var/tmp/memcached/memcached.pid'''
return os.path.join(self.workdir,"%s.pid" % self.name)
def _writhPid(self):
if self.pid:
with open(self._pidFile(),'w') as fd:
fd.write(str(self.pid))
def _readConf(self,f):
with open(f) as fd:
lines = fd.readlines()
return dict([i.strip().replace('"','').split('=') for i in lines])
def _parseArgs(self):
conf = self._readConf('/etc/sysconfig/memcached')
if 'USER' in conf:
self.args['USER'] = conf['USER']
if 'PORT' in conf:
self.args['PORT'] = conf['PORT']
if 'MAXCONN' in conf:
self.args['MAXCONN'] = conf['MAXCONN']
if 'CACHESIZE' in conf:
self.args['CACHESIZE'] = conf['CACHESIZE']
options = ['-u',self.args['USER'],
'-p',self.args['PORT'],
'-m',self.args['MAXCONN'],
'-c',self.args['CACHESIZE']]
return options
def start(self):
pid = self._getPid()
if pid:
print "%s is already runnig..." % self.name
sys.exit()
self._init()
cmd = [self.program]+self._parseArgs()+['-d','-P',self._pidFile()]
p = Popen(cmd,stdout=PIPE)
print "%s start Sucessful.." % self.name
def _getPid(self):
p = Popen(['pidof',self.name],stdout = PIPE)
pid = p.stdout.read().strip()
return pid
def stop(self):
pid = self._getPid()
if pid:
os.kill(int(pid),15)
if os.path.exists(self._pidFile()):
os.remove(self._pidFile())
print ("%s is stopped .") % self.name
def restart(self):
self.stop()
self.start()
def status(self):
pid = self._getPid()
if pid:
print "%s is already running..." % self.name
else:
print "%s is not running..." % self.name
def help(self):
print ("Usage: %s {start|stop|status|restart}") % __file__
def main():
name = 'memcached'
prog = '/usr/bin/memcached'
wd = '/var/tmp/memcached'
pm = Process(name = name,
program=prog,
workdir=wd)
try:
cmd = sys.argv[1]
except IndexError,e:
print ("Option error")
sys.exit()
if cmd == 'start':
pm.start()
elif cmd == 'stop':
pm.stop()
elif cmd == 'restart':
pm.restart()
elif cmd == 'status':
pm.status()
else:
pm.help()
if __name__ == '__main__':
main()
|
版权声明：原创作品，如需转载，请注明出处。否则将追究法律责任
本文转自 枫叶云 51CTO博客，原文链接:http://blog.51cto.com/fengyunshan911/2060427
版权声明：本文内容由互联网用户自发贡献，该文观点仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 举报，一经查实，本站将立刻删除。
发布者：全栈程序员-用户IM，转载请注明出处：https://javaforall.cn/108008.html原文链接：https://javaforall.cn
【正版授权，激活自己账号】： Jetbrains全家桶Ide使用，1年售后保障，每天仅需1毛
【官方授权 正版激活】： 官方授权 正版激活 支持Jetbrains家族下所有IDE 使用个人JB账号...
