Yum 不適用於 Amazon 實例

Yum 在我的一些亞馬遜實例上失敗了，我試圖跟進亞馬遜的人，但還沒有解決。以下是錯誤，python 和 yum 版本資訊：

[root@myhost_test.cache]# yum list
Loaded plugins: priorities, s3iam, update-motd, upgrade-helper
Traceback (most recent call last):
 File "/usr/bin/yum", line 29, in <module>
   yummain.user_main(sys.argv[1:], exit_code=True)
 File "/usr/share/yum-cli/yummain.py", line 355, in user_main
   errcode = main(args)
 File "/usr/share/yum-cli/yummain.py", line 174, in main
   result, resultmsgs = base.doCommands()
 File "/usr/share/yum-cli/cli.py", line 572, in doCommands
   return self.yum_cli_commands[self.basecmd].doCommand(self, self.basecmd, self.extcmds)
 File "/usr/share/yum-cli/yumcommands.py", line 638, in doCommand
   repoid=repoid)
 File "/usr/share/yum-cli/cli.py", line 1382, in returnPkgLists
   ignore_case=True, repoid=repoid)
 File "/usr/lib/python2.7/dist-packages/yum/__init__.py", line 2886, in doPackageLists
   avail = self.pkgSack.returnNewestByNameArch(patterns=patterns,
 File "/usr/lib/python2.7/dist-packages/yum/__init__.py", line 1069, in <lambda>
   pkgSack = property(fget=lambda self: self._getSacks(),
 File "/usr/lib/python2.7/dist-packages/yum/__init__.py", line 774, in _getSacks
   self.repos.populateSack(which=repos)
 File "/usr/lib/python2.7/dist-packages/yum/repos.py", line 383, in populateSack
   sack.populate(repo, mdtype, callback, cacheonly)
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 250, in populate
   if self._check_db_version(repo, mydbtype):
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 342, in _check_db_version
   return repo._check_db_version(mdtype)
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1520, in _check_db_version
   repoXML = self.repoXML
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1706, in <lambda>
   repoXML = property(fget=lambda self: self._getRepoXML(),
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1702, in _getRepoXML
   self._loadRepoXML(text=self.ui_id)
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1693, in _loadRepoXML
   return self._groupLoadRepoXML(text, self._mdpolicy2mdtypes())
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1667, in _groupLoadRepoXML
   if self._commonLoadRepoXML(text):
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1492, in _commonLoadRepoXML
   result = self._getFileRepoXML(local, text)
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1270, in _getFileRepoXML
   size=102400) # setting max size as 100K
 File "/usr/lib/python2.7/dist-packages/yum/yumRepo.py", line 1058, in _getFile
   **kwargs
 File "/usr/lib/yum-plugins/s3iam.py", line 195, in urlgrab
   response = urllib2.urlopen(request)
 File "/usr/local/lib/python2.7/urllib2.py", line 127, in urlopen
   return _opener.open(url, data, timeout)
 File "/usr/local/lib/python2.7/urllib2.py", line 404, in open
   response = self._open(req, data)
 File "/usr/local/lib/python2.7/urllib2.py", line 422, in _open
   '_open', req)
 File "/usr/local/lib/python2.7/urllib2.py", line 382, in _call_chain
   result = func(*args)
 File "/usr/local/lib/python2.7/urllib2.py", line 1222, in https_open
   return self.do_open(httplib.HTTPSConnection, req)
 File "/usr/local/lib/python2.7/urllib2.py", line 1181, in do_open
   h.request(req.get_method(), req.get_selector(), req.data, headers)
 File "/usr/local/lib/python2.7/httplib.py", line 973, in request
   self._send_request(method, url, body, headers)
 File "/usr/local/lib/python2.7/httplib.py", line 1007, in _send_request
   self.endheaders(body)
 File "/usr/local/lib/python2.7/httplib.py", line 969, in endheaders
   self._send_output(message_body)
 File "/usr/local/lib/python2.7/httplib.py", line 829, in _send_output
   self.send(msg)
 File "/usr/local/lib/python2.7/httplib.py", line 791, in send
   self.connect()
 File "/usr/local/lib/python2.7/httplib.py", line 1176, in connect
   self.sock = ssl.wrap_socket(sock, self.key_file, self.cert_file)
 File "/usr/local/lib/python2.7/ssl.py", line 387, in wrap_socket
   ciphers=ciphers)
 File "/usr/local/lib/python2.7/ssl.py", line 138, in __init__
   self._sslobj = _ssl.sslwrap(self._sock, server_side,
AttributeError: 'module' object has no attribute 'sslwrap'
[root@ip-10-30-213-135-datascience cache]# python -V
Python 2.7.6
[root@ip-10-30-213-135-datascience cache]# yum --version
3.4.3
 Installed: rpm-4.11.2-2.63.amzn1.x86_64 at 2015-03-25 11:50
 Built    : Amazon.com, Inc. <http://aws.amazon.com> at 2015-03-17 21:56
 Committed: Ben Cressey &lt;bcressey@amazon.com&gt; at 2015-03-17

 Installed: yum-3.4.3-137.54.amzn1.noarch at 2015-03-25 11:50
 Built    : Amazon.com, Inc. <http://aws.amazon.com> at 2015-03-04 01:16
 Committed: Rodrigo Novo &lt;rodarvus@amazon.de&gt; at 2015-03-04

問題是 SSLwrap 在 python 2.7 之後被刪除。為了解決這個問題，一個簡短的解決方案是讓 yum 使用 python2.6

vim /usr/bin/yum

將它的shebang更改為python2.6

文件好像有問題/usr/local/lib/python2.7/ssl.py。

你能從故障機器和工作機器上發布這個文件的 md5sum 嗎？你也可以檢查一下python版本是否相同嗎？

引用自：https://serverfault.com/questions/685116