http://mirrors.aliyun.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.aliyuncs.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.aliyun.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
http://mirrors.aliyuncs.com/centos/6/extras/x86_64/repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2: [Errno 14] PYCURL ERROR 7 - "couldn't connect to host"
Trying other mirror.
Error: failure: repodata/81fdefdd048c01dcc6cda1fd53aacec2a0613ea10d18163273f126fc42b6a5f8-filelists.sqlite.bz2 from extras: [Errno 256] No more mirrors to try.
yum -y install epel-release
yum -y install epel-release
yum -y install epel-release
yum -y install epel-release