Re: Libevent conflict on EL-6?

On 06/18/2014 12:00 PM, Craig Ringer wrote:

> Full log attached.
>
> It looks like the libevent in PGDG for 9.4/EL-6 conflicts with that in
> RHEL6, and should instead install in parallel to it as a "libevent2"
> with a different soname.

There are also multilib problems, because the x64 repo package doesn't
also provide i386 packages, so with --skip-broken:

Packages skipped because of dependency problems:
libevent-1.4.13-4.el6.i686 from rhui-REGION-rhel-server-releases
libevent-2.0.19-1.rhel6.x86_64 from pgdg94
libevent-devel-1.4.13-4.el6.i686 from
rhui-REGION-rhel-server-releases-optional
libevent-devel-2.0.19-1.rhel6.x86_64 from pgdg94
Error: Multilib version problems found. This often means that the root
cause is something else and multilib version checking is just
pointing out that there is a problem. Eg.:

1. You have an upgrade for libevent which is missing some
dependency that another package requires. Yum is trying to
solve this by installing an older version of libevent of the
different architecture. If you exclude the bad architecture
yum will tell you what the root cause is (which package
requires what). You can try redoing the upgrade with
--exclude libevent.otherarch ... this should give you
an error message showing the root cause of the problem.

2. You have multiple architectures of libevent installed, but
yum can only see an upgrade for one of those arcitectures.
If you don't want/need both architectures anymore then you
can remove the one with the missing update and everything
will work.

3. You have duplicate versions of libevent installed already.
You can use "yum check" to get yum show these errors.

...you can also use --setopt=protected_multilib=false to remove
this checking, however this is almost never the correct thing to
do as something else is very likely to go wrong (often causing
much more problems).

Protected multilib versions: libevent-1.4.13-1.el6.i686 !=
libevent-1.4.13-4.el6.x86_64

Yum wants to preserve the libevent version equality between RHEL's
libevent on i686 and the PGDG libevent it can only get an x86 version of.

Possibly related:

http://svn.pgrpms.org/ticket/73
http://svn.pgrpms.org/ticket/84

--
Craig Ringer http://www.2ndQuadrant.com/
PostgreSQL Development, 24x7 Support, Training & Services