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Memcached 启动脚本

时间:2017-08-23 23:02:04      阅读:211      评论:0      收藏:0      [点我收藏+]

标签:max   ror   status   idf   else   ini   ...   sage   parse   

#!/usr/bin/env python

import sys
import os
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 _getPid(self):
        p = Popen([pidof, self.name], stdout=PIPE)
        pid = p.stdout.read().strip()
        return 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[CACHESIZE],
                   -c, self.args[MAXCONN]]
        os.system("chown %s %s" % (self.args[USER], self.workdir))
        return options

    def start(self):
        pid = self._getPid()
        if pid:
            print "%s is already running...." % 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 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: python %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()

 

 

 

 

 

 

         

Memcached 启动脚本

标签:max   ror   status   idf   else   ini   ...   sage   parse   

原文地址:http://www.cnblogs.com/pzk7788/p/7420461.html

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