CentOS - Mar 2006 - futex.. How to remove lots of duplicate packages

This is the second time on a version upgrade that I''ve been hit with
the futex wait issue. Last time I hung with about 5 packages to go,
this time it hung with about 50 packages on the clean up. Now I have
loads of duplicate packages, any way to search and/or remove them
without trying to do it manually?

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On Wed, Mar 22, 2006 at 08:12:04AM -0800, Dave wrote:
> This is the second time on a version upgrade that I''ve been hit
with
> the futex wait issue. Last time I hung with about 5 packages to go,
> this time it hung with about 50 packages on the clean up. Now I have
> loads of duplicate packages, any way to search and/or remove them
> without trying to do it manually?
rpm -qa --qf "%{NAME}\n" | sort | uniq -d

This should give us a list of duplicated packages.

Unfortunately, you will have to check them yourself to make sure you
remove the older version. Had to do that myself yesterday on a server
of mine with messed up selinux contexts.

I recomend analysing the scripts for each package, and then deciding
if you will use "--noscripts" or not for removing. Things can get
ugly pretty quick if you are not careful when removing duplicated
packages.

- -- 
Rodrigo Barbosa <rodrigob@suespammers.org>
"Quid quid Latine dictum sit, altum viditur"
"Be excellent to each other ..." - Bill & Ted (Wyld Stallyns)

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On Wed, 22 Mar 2006 at 1:32pm, Rodrigo Barbosa wrote
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> On Wed, Mar 22, 2006 at 08:12:04AM -0800, Dave wrote:
>> This is the second time on a version upgrade that I''ve been
hit with
>> the futex wait issue. Last time I hung with about 5 packages to go,
>> this time it hung with about 50 packages on the clean up. Now I have
>> loads of duplicate packages, any way to search and/or remove them
>> without trying to do it manually?
>
> rpm -qa --qf "%{NAME}\n" | sort | uniq -d
>
> This should give us a list of duplicated packages.
Be careful with that -- it''ll give false positives on x86_64 (or any
other
dual arch system).  Try:

rpm -qa --qf "%{NAME}.%{arch}\n" | sort | uniq -d

-- 
Joshua Baker-LePain
Department of Biomedical Engineering
Duke University

On 3/22/06, Rodrigo Barbosa <rodrigob@suespammers.org>
wrote:
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> Hash: SHA1
>
> On Wed, Mar 22, 2006 at 08:12:04AM -0800, Dave wrote:
> > This is the second time on a version upgrade that I''ve been
hit with
> > the futex wait issue. Last time I hung with about 5 packages to go,
> > this time it hung with about 50 packages on the clean up. Now I have
> > loads of duplicate packages, any way to search and/or remove them
> > without trying to do it manually?
>
> rpm -qa --qf "%{NAME}\n" | sort | uniq -d
Thanks, that makes it easier to find the dupes, unfortunately it looks
worse then I first thought.

rpm -qa --qf "%{NAME}\n" | sort | uniq -d | wc -l
124

Hmm, maybe a full reinstall might be less painful. I''ve been hit with
this futex thing quite a few times over the past 5 or so years, twice
on the upgrade for CentOS. The rest on Fedora and RH 9, etc. Anyone
know why this hasn''t been fixed all this time?  Is it not fixable?
Anyway to insure this doesn''t happen again on an upgrade?

Dave wrote:
> This is the second time on a version upgrade that I''ve been hit
with
> the futex wait issue. Last time I hung with about 5 packages to go,
> this time it hung with about 50 packages on the clean up. Now I have
> loads of duplicate packages, any way to search and/or remove them
> without trying to do it manually?
> _______________________________________________
> CentOS mailing list
> CentOS@centos.org
> http://lists.centos.org/mailman/listinfo/centos
I have had this happen a few times in the past too where yum failed 
after installing about 100 out of 125 packages.  This causes the cleanup 
to not get done for the 100 that were installed.

I tend to not use a yum update that would update all of the packages at 
once when I know a bunch of updates are pending like going from one 
release to another for that reason.

I get a list of all updates and update them one by one so that if yum 
fails in the middle only the last update(and dependencies for that one 
update) would be affected.

It would be nice if yum had an option to do this(perform cleanup after 
each package is installed).  I created a script to do this(I called it 
safeyumupdate.sh) but I can''t seem to find it anymore.