Bug 1686909

Description of problem:

During hyperconverged HE ansible gdeploy from cockpit, the gluster arbiter brick is being created on 2nd host, while the arbiter LV is created on the 3rd host.

This happens during subsequent gluster volume creation from cockpit as well.

VDO is not used in any of the attempts so far.

It seems to be similar symptoms to these reports here -

https://bugzilla.redhat.com/show_bug.cgi?id=1596523
https://bugzilla.redhat.com/show_bug.cgi?id=1596520

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Version-Release number of selected component (if applicable):

ovirt-host-4.3.1-1.el7.x86_64
cockpit-ovirt-dashboard-0.12.3-1.el7.noarch

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How reproducible:

Happens every time a arbiter volume is created by gdeploy.

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Steps to Reproduce:
1.Create a 3 replica arbiter volume with gdeploy
2.Use lsblk to check LV size
3.Use gluster volume info to check arbiter brick placement

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Actual results:

The gluster arbiter brick is being created on 2nd host, while the arbiter LV is created on the 3rd host.

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Expected results:

The gluster arbiter brick and LV is created on the third host.

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Additional info:

gluster volume info data1
 
Volume Name: data1
Type: Replicate
Volume ID: 278655c7-ad7a-4637-9807-6db524551e2e
Status: Started
Snapshot Count: 0
Number of Bricks: 1 x (2 + 1) = 3
Transport-type: tcp
Bricks:
Brick1: fmt2-nde1.stor.diginode.net:/gluster_bricks/data1/data1
Brick2: fmt2-nde3.stor.diginode.net:/gluster_bricks/data1/data1
Brick3: fmt2-nde2.stor.diginode.net:/gluster_bricks/data1/data1 (arbiter)


lsblk output:

nde1:

  └─md101                                                          9:101  0 431.8G  0 raid1 
    ├─gluster_vg_md101-gluster_lv_engine                         253:2    0    80G  0 lvm   /gluster_bricks/engine
    ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101_tmeta   253:3    0     4M  0 lvm   
    │ └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101-tpool 253:5    0 351.8G  0 lvm   
    │   ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101     253:6    0 351.8G  0 lvm   
    │   └─gluster_vg_md101-gluster_lv_data1                      253:7    0   330G  0 lvm   /gluster_bricks/data1
    └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101_tdata   253:4    0 351.8G  0 lvm   
      └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101-tpool 253:5    0 351.8G  0 lvm   
        ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101     253:6    0 351.8G  0 lvm   
        └─gluster_vg_md101-gluster_lv_data1                      253:7    0   330G  0 lvm   /gluster_bricks/data1

nde2:

  └─md101                                                          9:101  0 431.8G  0 raid1 
    ├─gluster_vg_md101-gluster_lv_engine                         253:2    0    80G  0 lvm   /gluster_bricks/engine
    ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101_tmeta   253:3    0     4M  0 lvm   
    │ └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101-tpool 253:5    0 351.8G  0 lvm   
    │   ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101     253:6    0 351.8G  0 lvm   
    │   └─gluster_vg_md101-gluster_lv_data1                      253:7    0   330G  0 lvm   /gluster_bricks/data1
    └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101_tdata   253:4    0 351.8G  0 lvm   
      └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101-tpool 253:5    0 351.8G  0 lvm   
        ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101     253:6    0 351.8G  0 lvm   
        └─gluster_vg_md101-gluster_lv_data1                      253:7    0   330G  0 lvm   /gluster_bricks/data1

nde3:

  └─md101                                                          9:101  0 431.8G  0 raid1 
    ├─gluster_vg_md101-gluster_lv_engine                         253:2    0    80G  0 lvm   /gluster_bricks/engine
    ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101_tmeta   253:3    0     4M  0 lvm   
    │ └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101-tpool 253:5    0 351.8G  0 lvm   
    │   ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101     253:6    0 351.8G  0 lvm   
    │   └─gluster_vg_md101-gluster_lv_data1                      253:7    0    20G  0 lvm   /gluster_bricks/data1
    └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101_tdata   253:4    0 351.8G  0 lvm   
      └─gluster_vg_md101-gluster_thinpool_gluster_vg_md101-tpool 253:5    0 351.8G  0 lvm   
        ├─gluster_vg_md101-gluster_thinpool_gluster_vg_md101     253:6    0 351.8G  0 lvm   
        └─gluster_vg_md101-gluster_lv_data1                      253:7    0    20G  0 lvm   /gluster_bricks/data1