[CentOS-devel] Centos 8.x, dlm Package unavailable

Johnny Hughes

johnny at centos.org
Tue Aug 25 18:50:09 UTC 2020

On 8/25/20 1:47 PM, Johnny Hughes wrote:
> On 8/25/20 11:21 AM, Theodor Mittermair wrote:
>> Hello,
>> I'd like to inquire about the status of the "dlm" package on Centos 8,
>> which is required for using 'lvmlockd', replacement of 'clvmd'.
>> I also asked on #centos irc channel and was directed to this mailing list
>> There is a corresponding bug ticket [2] for this issue for quite some
>> time, but since the end-of-life of CentOS 6 grows closer, some people
>> would like to replace their CentOS 6 Cluster with a CentOS 8 one, which
>> is why I ask on this mailing list now.
>> With the release of CentOS 8.0 it seems there were some issues with
>> HighAvailability in general [1], but seem to have been resolved with
>> CentOS 8.1.
>> However, as already mentioned there is a separate ticket [2], for the
>> dlm package, which is unresolved as far ( 2020-08-25, Centos8.2 ) as i
>> am aware.
>> This prevents the use of clustered lvm and gfs2 out of the box, not an
>> uncommon use when configuring a HA Cluster, also described by RedHat
>> documentation [3].
>> In that tickets' conversation, it is mentioned that "that package is not
>> in RHEL .. we have released what is in RHEL", however someone else
>> seemed to have been in contact with RedHat and received information that
>> "...this package is in fact part of a RedHat repository and then CentOS
>> members should be able to take a look into it again...".
>> I'd also like to bring attention to the following explicitly:
>> * dlm-lib and dlm seem to be built from the same source rpm, dlm-lib is
>> available while dlm is not.
>> * apparently at some point in time dlm could be downloaded from koji
>> [4], but no more. For testing purposes we built dlm ourselves, locally
>> as well as on copr [5], which seems to work thus far.
>> * fedora (however much this might mean) provides dlm.
>> * It might just be a configuration error on the build system, if I
>> understood correctly, there was/is larger amounts of restructuring. Also
>> see chders' post from 2020-08-21 [2], which provides a possible
>> explanation and solution.
>> For completeness, you should be able reproduce the absence of that
>> package with:
>> "yum --disablerepo='*'
>> --enablerepo=BaseOS,AppStream,HighAvailability,epel,cr,centosplus,PowerTools,Devel,extras,fasttrack
>> list available | grep dlm"
>> or simply attempt to
>> "yum install dlm"
>> on your CentOS 8.x Installation.
>> Therefore, I would like to ask:
>> Is this an error on my end, am I doing something wrong or missing a
>> configuration?
>> If no, is there actually any political/technical/administrative/law
>> based reason for the unavailability of the "dlm" package?
>> If no, according to recent posts on the ticket [2], there might be a
>> rather simple solution (simplified, declaring the package to be included
>> in a repository), is it valid and who could do this if applicable?
>> with best regards
>> Theodor Mittermair
>> <https://koji.mbox.centos.org/koji/buildinfo?buildID=4801>
>> [1] https://bugs.centos.org/view.php?id=16553
>> [2] https://bugs.centos.org/view.php?id=16939
>> [3]
>> https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/8/html/configuring_and_managing_high_availability_clusters/assembly_configuring-gfs2-in-a-cluster-configuring-and-managing-high-availability-clusters
>> [4] https://koji.mbox.centos.org/koji/buildinfo?buildID=145
>> [5] https://copr.fedorainfracloud.org/coprs/astra/dlm/
> I have already stated it several places.  Resilient Storageis not base
> RHEL and not added to CentOS Linux 8.  If you want Advance Platform
> items, subscribe to RHEL.

And before anyone asks .. it is not my decision to make.

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