[Linux-ha-dev] Pacemaker-Python-GUI(hb_gui) not working on latest Heartbeat and Pacemaker

Dejan Muhamedagic dejanmm at fastmail.fm
Tue Feb 19 09:25:01 MST 2008 

Hi,

On Tue, Feb 19, 2008 at 08:22:10AM +0900, DAIKI MATSUDA wrote:
> Hi, Dejan.
> 
> 2008/2/18, Dejan Muhamedagic <dejanmm at fastmail.fm>:
> > Hi,
> >
> > On Mon, Feb 18, 2008 at 02:13:27PM +0900, DAIKI MATSUDA wrote:
> > > Hi, all.
> > >
> > > I recently testing the development tree of Heartbeat and Pacemaker.
> > > And I found they are alomost working well, but hb_gui on mgmtd
> > > provided Pacemaker-Python-GUI does not work. Because, as errased the
> > > part for mgmt from Heartbeat the configure command of Heartbeat does
> > > not manage for '--enable-mgmt'. Especially, in heartbeat/config.c
> > > MGMT_ENABLED is not defined.
> > > So, I defined MGMT_ENABLED on the top of heartbeat/config.c and built.
> > > Its binary file manages the mgmtd and hb_gui works.
> > >
> > > But there is a problem. In the environment not installed mgmtd, the
> > > heartbeat failes at the first.
> >
> > What fails? Compilation? Heartbeat should be aware of the mgmtd
> > only insofar as to manage the process (the respawn directive).
> > Since having mgmtd around when it's not used is not such a
> > biggie, perhaps we should just drop the '#ifdef MGMT_ENABLED'
> > from heartbeat/config.c.
> 
> As I wrote, Heartbeat supported mgmtd with defined MGMT_ENABLED, fails
> to start with following without mgmtd executable.
> [root at star crm]# /etc/init.d/heartbeat start
> logd is already running
> Starting High-Availability services:
>                                                            [FAILED]
> heartbeat[8830]: 2008/02/18_11:00:43 debug: add_option(crm,on)
> heartbeat[8830]: 2008/02/18_11:00:43 info: Version 2 support: on
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> apiauth cib     uid=hacluster
> heartbeat[8830]: 2008/02/18_11:00:43 debug: uid=hacluster, gid=<null>
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> apiauth stonithd        uid=root
> heartbeat[8830]: 2008/02/18_11:00:43 debug: uid=root, gid=<null>
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> apiauth attrd           uid=hacluster
> heartbeat[8830]: 2008/02/18_11:00:43 debug: uid=hacluster, gid=<null>
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> apiauth crmd    uid=hacluster
> heartbeat[8830]: 2008/02/18_11:00:43 debug: uid=hacluster, gid=<null>
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> apiauth mgmtd           uid=root
> heartbeat[8830]: 2008/02/18_11:00:43 debug: uid=root, gid=<null>
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> apiauth pingd           uid=root
> heartbeat[8830]: 2008/02/18_11:00:43 debug: uid=root, gid=<null>
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> failfast  hacluster /usr/lib/heartbeat/ccm
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive:
> hacluster /usr/lib/heartbeat/ccm
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> failfast  hacluster /usr/lib/heartbeat/cib
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive:
> hacluster /usr/lib/heartbeat/cib
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> respawn root /usr/lib/heartbeat/lrmd -r
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive: root
> /usr/lib/heartbeat/lrmd -r
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> respawn root /usr/lib/heartbeat/stonithd
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive: root
> /usr/lib/heartbeat/stonithd
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> respawn  hacluster /usr/lib/heartbeat/attrd
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive:
> hacluster /usr/lib/heartbeat/attrd
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> failfast  hacluster /usr/lib/heartbeat/crmd
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive:
> hacluster /usr/lib/heartbeat/crmd
> heartbeat[8830]: 2008/02/18_11:00:43 debug: Implicit directive:
> respawn root /usr/lib/heartbeat/mgmtd -v
> heartbeat[8830]: 2008/02/18_11:00:43 info: respawn directive: root
> /usr/lib/heartbeat/mgmtd -v
> heartbeat[8830]: 2008/02/18_11:00:43 ERROR: Client child command
> [/usr/lib/heartbeat/mgmtd] is not executable
> heartbeat[8830]: 2008/02/18_11:00:43 ERROR: Directive respawn root
> /usr/lib/heartbeat/mgmtd -v failed
> 
> Before it did not occure, because Heartbeat included all. As Pacemaker
> and other tool Pacemaker-Python-GUI discreted, I am currently
> confirming whether work or not well.
> 
> It is easy to support mgmtd with defining MGMT_ENABLE, but I feel that
> there is a little danger for upper log. And I asked the resolving way.

It's really hard to fix this without help from the other package.
And right now there's no mechanism in place for this purpose.

These are the options which we currently have:

1. Drop mgmtd from the crm implied set of directives and have
people ask every now and then why the GUI doesn't work.

2. Include mgmtd and have people complain about the error you
encountered. In which case they would have to replace "crm yes"
with a list of directives:

  apiauth lrmd        uid=root
  apiauth stonithd    uid=root
  apiauth crmd        uid=hacluster
  apiauth cib     uid=hacluster
  respawn root        /usr/lib/heartbeat/lrmd
  respawn root        /usr/lib/heartbeat/stonithd
  respawn hacluster       /usr/lib/heartbeat/ccm
  respawn hacluster       /usr/lib/heartbeat/cib
  respawn hacluster       /usr/lib/heartbeat/crmd

Looks ugly and is rather error prone.

3. What Lars suggested, to install these in conf.d directory,
would make life easier for the packages. However, the parsing
code would need quite a bit of restructuring for this.

Incidentaly, strange that mgmtd ended up with the GUI. IIRC, the
reason to put it in a separate package in the first place was not
to have to avoid the gtk glut on headless servers. IMO, mgmtd
should be packages with the CRM.

Cheers,

Dejan

> > > So, do you have a good idea for
> > > resolving it?
> >
> > Not now. Those changes were done by Andrew and I'm not familiar
> > with that work. I guess that he should have removed references to
> > mgmtd completely from the Heartbeat since it has been moved in
> > with the gui. BTW, the gui does use mgmt, but perhaps there are
> > going to be more clients. Perhaps the package should be named
> > mgmt.
> >
> > Thanks,
> >
> > Dejan
> >
> > > Regards
> > > MATSUDA, Daiki
> > > _______________________________________________________
> > > Linux-HA-Dev: Linux-HA-Dev at lists.linux-ha.org
> > > http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev
> > > Home Page: http://linux-ha.org/
> > _______________________________________________________
> > Linux-HA-Dev: Linux-HA-Dev at lists.linux-ha.org
> > http://lists.linux-ha.org/mailman/listinfo/linux-ha-dev
> > Home Page: http://linux-ha.org/
> >
> _______________________________________________________
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