thr3ads.net - libvirt users - Understanding 'State change failed: (-2) Need access to UpToDate data' [Oct 2020]

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Paul O'Rorke
2020-Oct-27 20:52 UTC
Understanding 'State change failed: (-2) Need access to UpToDate data'

Hi list,

I had to relocate my third node in a classic DRBD 8.4 three node set up 
to a new host.  I am having difficulty making the stacked resource the 
primary.  I am following this guide: 
https://www.linbit.com/drbd-user-guide/users-guide-drbd-8-4/#s-three-nodes

Specifically this:>
>
>         5.18.3. Enabling stacked resources
>
> To enable a stacked resource, you first enable its lower-level 
> resource and promote it:
>
> drbdadm up r0
> drbdadm primary r0
>
> As with unstacked resources, you must create DRBD meta data on the 
> stacked resources. This is done using the following command:
>
> # drbdadm create-md --stacked r0-U
>
> Then, you may enable the stacked resource:
>
> # drbdadm up --stacked r0-U
> # drbdadm primary --stacked r0-U
>
> After this, you may bring up the resource on the backup node, enabling 
> three-node replication:
>
> # drbdadm create-md r0-U
> # drbdadm up r0-UIt seems all is good right up to the last command:

:~# drbdadm primary informer
:~# drbdadm create-md --stacked informer-U
You want me to create a v08 style flexible-size internal meta data block.
There appears to be a v08 flexible-size internal meta data block
already in place on /dev/drbd11 at byte offset 429483581440

Do you really want to overwrite the existing meta-data?
[need to type 'yes' to confirm] yes

md_offset 429483581440
al_offset 429483548672
bm_offset 429470441472

Found some data

  ==> This might destroy existing data! <=
Do you want to proceed?
[need to type 'yes' to confirm] yes

initializing activity log
NOT initializing bitmap
Writing meta data...
New drbd meta data block successfully created.
:~# drbdadm up --stacked informer-U
:~# drbdadm primary --stacked informer-U
110: State change failed: (-2) Need access to UpToDate data
Command 'drbdsetup-84 primary 110' terminated with exit code 17

drbd11 is the device for the lower level resource 'informer', drbd110 
the device for stacked resource 'informer-U'.  Replication between hosts
'Alice' and 'Bob' (not the real host names but corresponding to
the
names used int the documentation) is functional.  I am performing the 
above commands on 'bob'.

I do not understand why it is complaining it needs UpToDate data in that 
last command if 'informer-U' is 'stacked-on-top-of informer' and
was
just created.

the .res file(s) look like this:
> resource informer {
>         net {
>                 protocol C;
>         }
>
>         device    /dev/drbd11;
>         meta-disk internal;
>
>         on trk-kvm-01 {
>                 address 10.10.1.125:7789;
>                 disk      /dev/trk-kvm-01-vg/informer;
>              }
>              on trk-kvm-02 {
>                 address 10.10.1.126:7789;
>                 disk      /dev/trk-kvm-02-vg/informer;
>         }
> }
>
> resource informer-U {
>         net {
>                 protocol A;
>         }
>
>         stacked-on-top-of informer {
>                 device /dev/drbd110;
>                 address 10.10.2.126:7789;
>         }
>
>         on trk-bkp-01 {
>                 device  /dev/drbd110;
>                 disk    /dev/ubuntu-vg/informer;
>                 address 10.10.2.127:7789;
>                 meta-disk internal;
>         }
> }Any suggestions on what I am missing in this picture?

Please and thanks.
-- 
Paul O'Rorke
Tracker Software Products (Canada) Limited
www.tracker-software.com <https://www.tracker-software.com>
Tel: +1 (250) 324 1621
Fax: +1 (250) 324 1623



Support:
www.tracker-software.com/support
<https://www.tracker-software.com/support>
Download latest Releases:
www.tracker-software.com/downloads 
<https://www.tracker-software.com/downloads>


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Hi list,<br>
  <br>
I had to relocate my third node in a classic DRBD 8.4 three node set up 
to a new host.  I am having difficulty making the stacked resource the 
primary.  I am following this guide: 
<a class="moz-txt-link-freetext"
href="https://www.linbit.com/drbd-user-guide/users-guide-drbd-8-4/#s-three-nodes">https://www.linbit.com/drbd-user-guide/users-guide-drbd-8-4/#s-three-nodes</a><br>
  <br>
Specifically this:<br>
  <blockquote type="cite">
    <h4 id="s-three-node-enable">5.18.3. Enabling stacked
resources</h4>
    <div class="paragraph"><p>To enable a stacked
resource, you first
enable its lower-level
resource and promote it:</p></div>
    <div class="listingblock"><div
class="content"><pre>drbdadm up r0
drbdadm primary r0</pre></div></div>
    <div class="paragraph"><p>As with unstacked resources,
you must
create DRBD meta data on the
stacked resources. This is done using the following
command:</p></div>
    <div class="listingblock"><div
class="content"><pre># drbdadm create-md --stacked
r0-U</pre></div></div>
    <div class="paragraph"><p>Then, you may enable the
stacked resource:</p></div>
    <div class="listingblock"><div
class="content"><pre># drbdadm up --stacked r0-U
# drbdadm primary --stacked r0-U</pre></div></div>
    <div class="paragraph"><p>After this, you may bring up
the resource
on the backup node, enabling
three-node replication:</p></div>
    <div class="listingblock"><div
class="content"><pre># drbdadm create-md r0-U
# drbdadm up r0-U</pre></div></div>
  </blockquote>
It seems all is good right up to the last command:<br>
  <br>
:~# drbdadm primary informer<br>
:~# drbdadm create-md --stacked informer-U<br>
You want me to create a v08 style flexible-size internal meta data 
block.<br>
There appears to be a v08 flexible-size internal meta data block<br>
already in place on /dev/drbd11 at byte offset 429483581440<br>
  <br>
Do you really want to overwrite the existing meta-data?<br>
[need to type 'yes' to confirm] yes<br>
  <br>
md_offset 429483581440<br>
al_offset 429483548672<br>
bm_offset 429470441472<br>
  <br>
Found some data<br>
  <br>
 ==&gt; This might destroy existing data! &lt;==<br>
  <br>
Do you want to proceed?<br>
[need to type 'yes' to confirm] yes<br>
  <br>
initializing activity log<br>
NOT initializing bitmap<br>
Writing meta data...<br>
New drbd meta data block successfully created.<br>
:~# drbdadm up --stacked informer-U<br>
:~# drbdadm primary --stacked informer-U<br>
110: State change failed: (-2) Need access to UpToDate data<br>
Command 'drbdsetup-84 primary 110' terminated with exit code
17<br>
  <br>
drbd11 is the device for the lower level resource 'informer', drbd110 
the device for stacked resource 'informer-U'.  Replication between hosts
 'Alice' and 'Bob' (not the real host names but corresponding to
the
names used int the documentation) is functional.  I am performing the 
above commands on 'bob'.<br>
  <br>
I do not understand why it is complaining it needs UpToDate data in that
 last command if 'informer-U' is 'stacked-on-top-of informer'
and was
just created.<br>
  <br>
the .res file(s) look like this:<br>
  <br>
  <blockquote type="cite">resource informer {<br>
        net {<br>
                protocol C;<br>
        }<br>
    <br>
        device    /dev/drbd11;<br>
        meta-disk internal;<br>
    <br>
        on trk-kvm-01 {<br>
                address 10.10.1.125:7789;<br>
                disk      /dev/trk-kvm-01-vg/informer;<br>
             }<br>
             on trk-kvm-02 {<br>
                address 10.10.1.126:7789;<br>
                disk      /dev/trk-kvm-02-vg/informer;<br>
        }<br>
}<br>
    <br>
resource informer-U {<br>
        net {<br>
                protocol A;<br>
        }<br>
    <br>
        stacked-on-top-of informer {<br>
                device /dev/drbd110;<br>
                address 10.10.2.126:7789;<br>
        }<br>
    <br>
        on trk-bkp-01 {<br>
                device  /dev/drbd110;<br>
                disk    /dev/ubuntu-vg/informer;<br>
                address 10.10.2.127:7789;<br>
                meta-disk internal;<br>
        }<br>
}</blockquote>
Any suggestions on what I am missing in this picture?<br>
  <br>
Please and thanks.<br>
  <div class="moz-signature">-- <br><span
style="font-weight: bold;">Paul
 O'Rorke</span><br>
<span style="font-weight: bold;">Tracker Software Products
(Canada)
Limited</span><br>
<a
href="https://www.tracker-software.com">www.tracker-software.com</a><br>
Tel: +1 (250) 324 1621<br>

Fax: +1 (250) 324 1623<br>
<br>
<img 
src="https://www.tracker-software.com/fckfiles/image/images/resellers/logo/TrackerSofwareProducts_Logo_330x100.png"
 name="image.png" align="bottom" height="60"
border="0" width="198"><br>

<br>
Support:  <br>
<a
href="https://www.tracker-software.com/support">www.tracker-software.com/support</a><br>
Download latest Releases:<br>
<a
href="https://www.tracker-software.com/downloads">www.tracker-software.com/downloads</a><br>

<br>

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