Issue with yum

Please check how i have fixed my yum issue on my vps.

[root@ldap /]# yum -y install openldap-servers openldap-clients
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Traceback (most recent call last):
  File "/usr/bin/yum", line 29, in ?
    yummain.user_main(sys.argv[1:], exit_code=True)
  File "/usr/share/yum-cli/yummain.py", line 309, in user_main
    errcode = main(args)
  File "/usr/share/yum-cli/yummain.py", line 178, in main
    result, resultmsgs = base.doCommands()
  File "/usr/share/yum-cli/cli.py", line 345, in doCommands
    self._getTs(needTsRemove)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 101, in _getTs
    self._getTsInfo(remove_only)
  File "/usr/lib/python2.4/site-packages/yum/depsolve.py", line 112, in _getTsInfo
    pkgSack = self.pkgSack
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 662, in
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.4/site-packages/yum/__init__.py", line 502, in _getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.4/site-packages/yum/repos.py", line 232, in populateSack
    self.doSetup()
  File "/usr/lib/python2.4/site-packages/yum/repos.py", line 79, in doSetup
    self.ayum.plugins.run('postreposetup')
  File "/usr/lib/python2.4/site-packages/yum/plugins.py", line 179, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "/usr/lib/yum-plugins/fastestmirror.py", line 181, in postreposetup_hook
    all_urls = FastestMirror(all_urls).get_mirrorlist()
  File "/usr/lib/yum-plugins/fastestmirror.py", line 333, in get_mirrorlist
    self._poll_mirrors()
  File "/usr/lib/yum-plugins/fastestmirror.py", line 376, in _poll_mirrors
    pollThread.start()
  File "/usr/lib64/python2.4/threading.py", line 416, in start
    _start_new_thread(self.__bootstrap, ())
thread.error: can't start new thread

I have tried with the following command but the issue was not fixed.

[root@ldap /]# yum clean all
Loaded plugins: fastestmirror
Cleaning up Everything
Cleaning up list of fastest mirrors
[root@ldap /]# rm -f /var/lib/rpm/__db*
[root@ldap /]# rpm --rebuilddb

Solution :

[root@ldap /]# rm /dev/urandom
rm: remove character special file `/dev/urandom'? y
[root@ldap /]# mknod -m 644 /dev/urandom c 1 9
[root@ldap /]# logout

exited from CT 3001
You have new mail in /var/spool/mail/root
[root@openvz ~]#
[root@openvz ~]# vzctl restart 3001

[root@ldap /]# yum update

Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
 * base: ftp.iitm.ac.in
 * epel: ftp.neowiz.com
 * extras: ftp.iitm.ac.in
 * remi: remi-mirror.dedipower.com
 * updates: ftp.iitm.ac.in
base                                                                                                                                                      | 1.1 kB     00:00    
base/primary                                                                                                                                              | 1.2 MB     00:09    
base                                                                                                                                                                   3591/3591
epel                                                                                                                                                      | 3.7 kB     00:00    
epel/primary_db                                                                                                                                           | 3.8 MB     00:19