yum Error: requested datatype primary not available

[Vikram Goyal]

Hello,

I am running F7, Yum started giving errors:

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[root at f7host yum.repos.d]# yum -d 4 update
Loading "protectbase" plugin
Loading "kernel-module" plugin
Loading "kmdl" plugin
"versionlock" plugin is disabled
Loading "merge-conf" plugin
Loading "security" plugin
Loading "installonlyn" plugin
"downloadonly" plugin is disabled
Loading "changelog" plugin
Loading "fastestmirror" plugin
Loading "skip-broken" plugin
Loading "priorities" plugin
"allowdowngrade" plugin is disabled
"presto" plugin is disabled
Loading "tsflags" plugin
"fedorakmod" plugin is disabled
Running "config" handler for "protectbase" plugin
Running "config" handler for "merge-conf" plugin
Running "config" handler for "security" plugin
Running "config" handler for "installonlyn" plugin
Running "config" handler for "changelog" plugin
Running "config" handler for "skip-broken" plugin
Running "config" handler for "priorities" plugin
Running "init" handler for "fastestmirror" plugin
Running "init" handler for "tsflags" plugin
Running "postreposetup" handler for "changelog" plugin
Running "postreposetup" handler for "fastestmirror" plugin
Loading mirror speeds from cached hostfile
Running "postreposetup" handler for "tsflags" plugin
Yum Version: 3.2.0
COMMAND: yum -d 4 update
Installroot: /
Setting up Update Process
Reading Local RPMDB
Building updates object
Setting up Package Sacks
Error: requested datatype primary not available
-----------------------------------------------------------

It was running fine before. I rebuilt rpm db. Rpm is running fine.
Cleaned yum cache by executing yum clean all.
Disabled a few plugins and checked but the problem still remains.

Googling did not give any good pointers. There are no other reports from
other users, so it must be me experiencing this.

I am out of ideas now, please suggest what to do further.

Thanks & regards,
-- 
vikram...
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