yum报错error getting update info: Cannot retrieve repository metadata (repomd.xml) for repository，Cat /var/log/message
Oct 15 15:01:33 best11 : error getting update info: Cannot retrieve repository metadata (repomd.xml) for repository: addons. Please verify its path and try again
Oct 15 15:46:27 best11 nagios: Auto-save of retention data completed successfully.
以上错误的原因是yum源
可能是源地址配置错了
可能是dns解析不了
就是源地址是对，但防火墙设置了，导致了yum源更新不了所以就报错
[root@best11 iptables]# yum install httpd
Loaded plugins: rhnplugin, security
This system is not registered with RHN.
RHN support will be disabled.
http://ftp.twaren.net/Linux/CentOS/5/os/i386/repodata/repomd.xml: [Errno 4] IOError: <urlopen error (-3, ‘Temporary failure in name resolution’)>
Trying other mirror.
Error: Cannot retrieve repository metadata (repomd.xml) for repository: base. Please verify its path and try again

yum thread.error: can’t start new thread错误
2010年12月1日 | 标签: FAQ, linux
yum安装软件时出现以下错误：Loaded plugins: fastestmirrorDetermining fastest mirrorsTraceback (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 661, in pkgSack = property(fget=lambda self: self._getSacks(),File “/usr/lib/python2.4/site-packages/yum/__init__.py”, line 501, in _getSacksself.repos.populateSack(which=repos)File “/usr/lib/python2.4/site-packages/yum/repos.py”, line 232, in populateSackself.doSetup()File “/usr/lib/python2.4/site-packages/yum/repos.py”, line 79, in doSetupself.ayum.plugins.run(‘postreposetup’)File “/usr/lib/python2.4/site-packages/yum/plugins.py”, line 179, in runfunc(conduitcls(self, self.base, conf, **kwargs))File “/usr/lib/yum-plugins/fastestmirror.py”, line 181, in postreposetup_hookall_urls = FastestMirror(all_urls).get_mirrorlist()File “/usr/lib/yum-plugins/fastestmirror.py”, line 333, in get_mirrorlistself._poll_mirrors()File “/usr/lib/yum-plugins/fastestmirror.py”, line 376, in _poll_mirrorspollThread.start()File “/usr/lib64/python2.4/threading.py”, line 416, in start_start_new_thread(self.__bootstrap, ())thread.error: can’t start new thread
解决办法，禁用fastestmirror，将fastestmirror.conf中的enabled=1改成enabled=0sed -i ‘s/enabled=1/enabled=0/’ /etc/yum/pluginconf.d/fastestmirror.conf