Re: [Linux-HA] Resource set question

2009-07-13 Thread Steinhauer Juergen
Hi,

I just tried to create a group with ordered=false in pacemaker 1.0.4,
but this fails.

Regards

Lars Marowsky-Bree schrieb:
 On 2009-07-10T12:53:53, Gawith gaw...@gmx.de wrote:
 
 Set ordered=false for the ip group. That will start them in parallel. I
 think. Then specify a resource order constraint to start your app group
 after the ip group and a colocation constraint to have the apps on the
 same node as the ips.
 As far as I know, setting ordered=false is not supported any more for
 groups. Andrew?
 
 I'm pretty sure it still is supported.
 
 Of course you can also use a resource set to the same effect, but
 disabling ordering on groups should also do it.
 
 
 Regards,
 Lars
 
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Re: [Linux-HA] Resource set question

2009-07-13 Thread Michael Schwartzkopff
Am Montag, 13. Juli 2009 10:05:13 schrieb Steinhauer Juergen:
 Hi,

 I just tried to create a group with ordered=false in pacemaker 1.0.4,
 but this fails.

 Regards

Why does it fail? Any eror message? Nothing in the logs?

group id=group
meta_attributes id=group-meta_attributes
  nvpair id=group-meta_attributes-ordered name=ordered 
value=false/
/meta_attributes
primitive class=ocf id=res1 provider=pacemaker type=Dummy
/primitive
primitive class=ocf id=res2 provider=pacemaker type=Dummy
/primitive
  /group

works for me.

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Re: [Linux-HA] Resource set question

2009-07-13 Thread Steinhauer Juergen
Hi,

it was my fault. I didn't set ordered as meta-attribute.
Nevertheless, the wanted behaviour is still not achieved.

I created a colocation like this:

resource_set id=app_colocation-resource_set score=INFINITY
sequential=true
  resource_ref id=app_ips/
  resource_ref id=app/
/resource_set

I would expect, that app_ips, the unordered group, will start in
parallel. After that, the app is started.
But I see, that the IPs start in parallel and during that also the app
is started.

Where#s my fault?

Regards.


Michael Schwartzkopff schrieb:
 Am Montag, 13. Juli 2009 10:05:13 schrieb Steinhauer Juergen:
 Hi,

 I just tried to create a group with ordered=false in pacemaker 1.0.4,
 but this fails.

 Regards
 
 Why does it fail? Any eror message? Nothing in the logs?
 
 group id=group
 meta_attributes id=group-meta_attributes
   nvpair id=group-meta_attributes-ordered name=ordered 
 value=false/
 /meta_attributes
 primitive class=ocf id=res1 provider=pacemaker type=Dummy
 /primitive
 primitive class=ocf id=res2 provider=pacemaker type=Dummy
 /primitive
   /group
 
 works for me.
 
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Re: [Linux-HA] Resource set question

2009-07-13 Thread Andrew Beekhof
On Fri, Jul 10, 2009 at 12:53 PM, Gawithgaw...@gmx.de wrote:
 Hi Dominik,

 Set ordered=false for the ip group. That will start them in parallel. I
 think. Then specify a resource order constraint to start your app group
 after the ip group and a colocation constraint to have the apps on the
 same node as the ips.


 As far as I know, setting ordered=false is not supported any more for
 groups. Andrew?

Thats my recollection/intention
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Re: [Linux-HA] Resource set question

2009-07-13 Thread Andrew Beekhof
On Mon, Jul 13, 2009 at 11:29 AM, Steinhauer Juergengaw...@gmx.de wrote:
 Hi,

 it was my fault. I didn't set ordered as meta-attribute.
 Nevertheless, the wanted behaviour is still not achieved.

 I created a colocation like this:

 resource_set id=app_colocation-resource_set score=INFINITY
 sequential=true
          resource_ref id=app_ips/
          resource_ref id=app/
 /resource_set

 I would expect, that app_ips, the unordered group, will start in
 parallel. After that, the app is started.
 But I see, that the IPs start in parallel and during that also the app
 is started.

 Where#s my fault?

no idea, you'll need to create a hb_report archive for us to look at
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Re: [Linux-HA] Resource set question

2009-07-10 Thread Gawith
Hi Dominik,

 Set ordered=false for the ip group. That will start them in parallel. I
 think. Then specify a resource order constraint to start your app group
 after the ip group and a colocation constraint to have the apps on the
 same node as the ips.
 

As far as I know, setting ordered=false is not supported any more for
groups. Andrew?


Cheers
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Re: [Linux-HA] Resource set question

2009-07-10 Thread Dominik Klein
Steinhauer Juergen wrote:
 Hi guys!
 
 In my cluster setup, I have 6 IP addresses which should be started in
 parallel for speed purpose, and two apps, depending on the six addresses.
 
 What would be the best way to configure this?
 Putting all IPs in a group will start them one after another. Bad.

Set ordered=false for the ip group. That will start them in parallel. I
think. Then specify a resource order constraint to start your app group
after the ip group and a colocation constraint to have the apps on the
same node as the ips.

Regards
Dominik

 A colocation with a set including the IPs (sequential=false) and the
 two apps will not migrate the apps (and the remaining IPs), if one IP
 should fail...
 
 I'm happy about every proposal.
 
 Regards
 
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Re: [Linux-HA] Resource set question

2009-07-10 Thread Lars Marowsky-Bree
On 2009-07-10T12:53:53, Gawith gaw...@gmx.de wrote:

  Set ordered=false for the ip group. That will start them in parallel. I
  think. Then specify a resource order constraint to start your app group
  after the ip group and a colocation constraint to have the apps on the
  same node as the ips.
 As far as I know, setting ordered=false is not supported any more for
 groups. Andrew?

I'm pretty sure it still is supported.

Of course you can also use a resource set to the same effect, but
disabling ordering on groups should also do it.


Regards,
Lars

-- 
SuSE Labs, OPS Engineering, Novell, Inc.
SUSE LINUX Products GmbH, GF: Markus Rex, HRB 16746 (AG Nürnberg)
Experience is the name everyone gives to their mistakes. -- Oscar Wilde

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