[ClusterLabs] Unable to run Pacemaker: pcmk_child_exit

Fri May 6 13:19:16 UTC 2016

Hi,

QQ, how can I configure to use a different folder other than
/var/lib/pacemaker?

Also, in /dev/shm I see that it created around 300+ files of around 250 MB.

For e.g.
-rw-rw----    1 hacluste hacluste      8232 May  6 13:03
qb-cib_rw-response-25035-25038-10-header
-rw-rw----    1 hacluste hacluste    540672 May  6 13:03
qb-cib_rw-response-25035-25038-10-data
-rw-------    1 hacluste hacluste      8232 May  6 13:03
qb-cib_rw-response-25035-25036-12-header
-rw-------    1 hacluste hacluste    540672 May  6 13:03
qb-cib_rw-response-25035-25036-12-data
And many more..

We have limited space in /dev/shm and all these files are filling it up.
Are these all needed? Any way to limit?

-Regards
Nikhil

On Fri, May 6, 2016 at 6:16 PM, Nikhil Utane <nikhil.subscribed at gmail.com>
wrote:

> Thanks for the details, Jan.
> We have cross-compiled the same way.
> However because of space constraints on target we copied selected folders.
>
> For this issue, I made a softlink for pacemaker-1.0.rng to point to pacemaker-next.rng
> and that did the trick. :)
> I am not getting the error and the node information is getting added now.
> Still would like to understand why it picked up pacemaker-1.0.rng instead
> of the latest one.
>
> There is no error now in the corosync.log file. Everything seems to be up
> and running.
> But still the output of 'pcs cluster start' command gave failure.
>
> [root at airv_cu xml]# pcs cluster start
> Starting Cluster...
> Starting Pacemaker Cluster Manager[FAILED]
>
> Error: unable to start pacemaker
>
> [root at airv_cu xml]# pcs cluster status
> Cluster Status:
>  Stack: corosync
>  Current DC: airv_cu (version 1.1.14-5a6cdd1) - partition with quorum
>  Last updated: Fri May  6 12:44:33 2016         Last change: Fri May  6
> 12:08:23 2016
>  1 node and 0 resources configured
>
> Let me check whether qt-blackbox gives any details.
>
> -Thanks
> Nikhil
>
> On Fri, May 6, 2016 at 5:46 PM, Jan Pokorný <jpokorny at redhat.com> wrote:
>
>> On 06/05/16 16:59 +0530, Nikhil Utane wrote:
>> >
>> > [...]
>> >
>> >> On 05/06/2016 12:40 PM, Nikhil Utane wrote:
>> >>> As I am cross-compiling pacemaker on a build machine and later moving
>> >>> the binaries to the target, few binaries were missing. After fixing
>> >>> that and bunch of other errors/warning, I am able to get pacemaker
>> >>> started though not completely running fine.
>>
>> > As I mentioned, I am cross-compiling and copying the relevant files
>> > on target platform.
>>
>> I am afraid you are doing the "install" step of deploying from sources
>> across the machines utterly wrong.
>>
>> > In one of the earlier run pacemaker cribbed out not finding
>> > /usr/share/pacemaker/pacemaker-1.0.rng.
>>
>> What more to expect if you believe you can do with moving binaries
>> and getting relevant files OK by hand.  That doesn't really scale
>> and is error-prone, leading to more time spent on guesstimating
>> authoritative installation recipe that's already there (see below).
>>
>> > I found this file under xml folder in the build folder, so I copied all
>> the
>> > files under xml folder onto the target.
>> > Did that screw it up?
>> >
>> > This is the content of the folder:
>> > [root at airv_cu pacemaker]# ls /usr/share/pacemaker/
>> > Makefile              constraints-2.1.rng   nodes-1.0.rng
>> > pacemaker-2.1.rng     rule.rng
>> > Makefile.am           constraints-2.2.rng   nodes-1.2.rng
>> > pacemaker-2.2.rng     score.rng
>> > Makefile.in           constraints-2.3.rng   nodes-1.3.rng
>> > pacemaker-2.3.rng     status-1.0.rng
>> > Readme.md             constraints-next.rng  nvset-1.3.rng
>> > pacemaker-2.4.rng     tags-1.3.rng
>> > acls-1.2.rng          context-of.xsl        nvset.rng
>> > pacemaker-next.rng    upgrade-1.3.xsl
>> > acls-2.0.rng          crm-transitional.dtd  ocf-meta2man.xsl
>> >  pacemaker.rng         upgrade06.xsl
>> > best-match.sh         crm.dtd               options-1.0.rng
>> > regression.core.sh    versions.rng
>> > cib-1.0.rng           crm.xsl               pacemaker-1.0.rng
>> > regression.sh
>> > cib-1.2.rng           crm_mon.rng           pacemaker-1.2.rng
>> > resources-1.0.rng
>> > constraints-1.0.rng   fencing-1.2.rng       pacemaker-1.3.rng
>> > resources-1.2.rng
>> > constraints-1.2.rng   fencing-2.4.rng       pacemaker-2.0.rng
>> > resources-1.3.rng
>>
>> Now, you got overapproximation of what you really need
>> (e.g., context-of.xsl and best-match.sh are just helpers for developers
>> and make sense only from within the source tree, just as Makefile etc.
>> does), which is what you want to avoid, especially in case of the
>> embedded board.
>>
>> So now, what you should do instead is along these lines:
>>
>> $ mkdir pcmk-tree
>> $ export CFLAGS=... CC=... # what you need for cross-compilation
>> $ ./configure ...
>> $ make && make install DESTDIR=$(pwd)/pcmk-tree
>> $ tar czpf pcmk-tree.tar.gz pcmk-tree
>>
>> and now, distribute pcmk-tree.tar.gz to you target, untar it with
>> something like "-k --strip-components=1" in the / dir.
>>
>> Or better yet, go a proper package management route, best using
>> "make rpm" target (you'll have to edit pacemaker.spec or RPM macros
>> on your system so as to pass the cross-compilation flags across)
>> and then just install the package at the target if that's doable
>> in your environment.
>>
>> Hope this helps.
>>
>> --
>> Jan (Poki)
>>
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>
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