yum update hung due to loading lots of plugins

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After adding my new repository, yum update takes forever to finish:

# yum update
Loaded plugins: aliases, changelog, downloadonly, fastestmirror, filter-data, keys, kmod, list-data, protect-packages, protectbase, rhnplugin, security, tmprepo,
              : verify, versionlock


I noticed yum loading lots of plugins, so I disabled the yum plugins and issue resolved:

# cat /etc/yum.conf |grep plugins
plugins=0





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