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Re: [HTCondor-users] TR: sl6.8 libcgroup -- bug

This just came in via the htcondor-users mailing list.

Hmm, might need to keep an eye on this.

Cheers, Iain

Sent from Nine

From: SCHAER Frederic <frederic.schaer@xxxxxx>
Sent: 27 Jul 2016 17:28
To: LHC Computer Grid - Rollout <LCG-ROLLOUT@xxxxxxxxxxxxxx> (LCG-ROLLOUT@xxxxxxxxxxxxxx); htcondor-users@xxxxxxxxxxx
Subject: [HTCondor-users] TR: sl6.8 libcgroup -- bug

Hi Guys,

Be warned of SL6.8 fastbugs if you're using cgroups...


-----Message d'origine-----
De : owner-scientific-linux-users@xxxxxxxxxxxxxxxxx [mailto:owner-scientific-linux-users@xxxxxxxxxxxxxxxxx] De la part de SCHAER Frederic
Envoyé : mercredi 27 juillet 2016 17:23
À : ~Stack~ <i.am.stack@xxxxxxxxx>; Stijn De Weirdt <stijn.deweirdt@xxxxxxxx>; scientific-linux-users@xxxxxxxx
Objet : [PROVENANCE INTERNET] RE: sl6.8 libcgroup -- bug

Same here.
Hey ! This seems SL specific... !?

I installed this one manually : CentOS/6.8/updates/x86_64/Packages/libcgroup-0.40.rc1-18.el6_8.x86_64.rpm

[root@dev7247 ~]# cat /etc/redhat-release
Scientific Linux release 6.8 (Carbon)

[root@dev7247 ~]# rpm -qi libcgroup
Name        : libcgroup                    Relocations: (not relocatable)
Version     : 0.40.rc1                          Vendor: CentOS
Release     : 18.el6_8                      Build Date: Tue 12 Jul 2016 06:27:20 PM CEST
Install Date: Wed 27 Jul 2016 05:15:28 PM CEST      Build Host: worker1.bsys.centos.org

And cgroups seem to still work whereas they failed with the SL RPM :
[root@dev7247 ~]# service cgconfig restart
Stopping cgconfig service:                                 [  OK  ]
Starting cgconfig service:                                 [  OK  ]



-----Message d'origine-----
De : owner-scientific-linux-users@xxxxxxxxxxxxxxxxx [mailto:owner-scientific-linux-users@xxxxxxxxxxxxxxxxx] De la part de ~Stack~
Envoyé : mercredi 27 juillet 2016 12:59
À : Stijn De Weirdt <stijn.deweirdt@xxxxxxxx>; scientific-linux-users@xxxxxxxx
Objet : Re: sl6.8 libcgroup

On 07/27/2016 03:53 AM, Stijn De Weirdt wrote:
> hi all,
> we have a update an sl67 node to sl68 (but not yet updated the kernel),
> and this updates
> libcgroup-0.40.rc1-17.el6_7.x86_64
> to
> libcgroup-0.40.rc1-18.el6_8.x86_64
> however, it now seems that the cgonfigparser even fails to validate the
> distributed /etc/cgconfig.conf
>> [root@test2802 ~]# /sbin/cgconfigparser -l /etc/cgconfig.conf
>> error at line number 17 at {:syntax error
>> Error: failed to parse file /etc/cgconfig.conf
>> /sbin/cgconfigparser; error loading /etc/cgconfig.conf: Have multiple paths for the same namespace
> the /etc/cgconfig.conf is the same in both rpms
> anyone seeing this? or knows how to fix?


I discovered the exact same thing. I fully updated to 6.8 and rebooted
into the new kernel. I haven't filed a bug report against it yet as I
didn't have time yesterday to really dig into it. My "workaround" was to
"yum downgrade libcgroup" on all my hosts until I could figure it out.


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