yum | 命令錯誤“pycurl.so: undefined symbol: CRYPTO_set_locking_callback”

錯誤信息

所有yum命令都會報錯！

類似下面的報錯：

There was a problem importing one of the Python modules
required to run yum. The error leading to this problem was:

/usr/lib64/python2.6/site-packages/pycurl.so: undefined symbol: CRYPTO_set_locking_callback

Please install a package which provides this module, or
verify that the module is installed correctly.

It's possible that the above module doesn't match the
current version of Python, which is:
2.6.6 (r266:84292, Sep  4 2013, 07:46:00)
[GCC 4.4.7 20120313 (Red Hat 4.4.7-3)]

If you cannot solve this problem yourself, please go to
the yum faq at:
http://yum.baseurl.org/wiki/Faq

處理方法

• 檢查出現錯誤提示的庫

ldd /usr/lib64/python2.7/site-packages/pycurl.so

ldconfig -p -N -X | grep curl

• 服務器裏有其他libcurl.*，應該是庫重複了導致的

find / -name 'libcurl.*'

會發現很多libcurl

• 刪除備份相應libcurl.*即可

cd /usr/local/curl/lib/
mkdir back
mv libcurl.* back

• 更新yum庫

yum clean all 
yum makecache fast