遇到的錯誤，記錄一下

錯誤如下：

yum install vim
Loaded plugins: fastestmirror
^Chttps://download.docker.com/linux/centos/7/x86_64/stable/repodata/repomd.xml: [Errno 14] curl#56 - "Callback aborted"
Trying other mirror.




 One of the configured repositories failed (Docker CE Stable - x86_64),
 and yum doesn't have enough cached data to continue. At this point the only
 safe thing yum can do is fail. There are a few ways to work "fix" this:


     1. Contact the upstream for the repository and get them to fix the problem.


     2. Reconfigure the baseurl/etc. for the repository, to point to a working
        upstream. This is most often useful if you are using a newer
        distribution release than is supported by the repository (and the
        packages for the previous distribution release still work).


     3. Run the command with the repository temporarily disabled
            yum --disablerepo=docker-ce-stable ...


     4. Disable the repository permanently, so yum won't use it by default. Yum
        will then just ignore the repository until you permanently enable it
        again or use --enablerepo for temporary usage:


            yum-config-manager --disable docker-ce-stable
        or
            subscription-manager repos --disable=docker-ce-stable


     5. Configure the failing repository to be skipped, if it is unavailable.
        Note that yum will try to contact the repo. when it runs most commands,
        so will have to try and fail each time (and thus. yum will be be much
        slower). If it is a very temporary problem though, this is often a nice
        compromise:


            yum-config-manager --save --setopt=docker-ce-stable.skip_if_unavailable=true


failure: repodata/repomd.xml from docker-ce-stable: [Errno 256] No more mirrors to try.

https://download.docker.com/linux/centos/7/x86_64/stable/repodata/repomd.xml: [Errno 14] curl#56 - "Callback aborted"

解決：把/etc/yum.repos.d/中docker相關的 docker.repo這些全刪除了，應該是之前為了下載docker最新版下載了這些yum源，刪除之後再安裝就正常了