[Ocfs2-users] Adding new node to an online OCFS2 cluster

[BASSAGET Cédric]

I've set-up a lab with a 2-node OCFS2 cluster and a new third one.

I ran, on the two nodes :
o2cb_ctl -C -i -n hostC -t node -a number=2 -a ip_address=192.168.0.18 -a
ip_port=7777 -a cluster=ocfs2
systemctl reload ocfs2

then I copied the config file on hostC and restart ocfs2 on hostC.

I get the error :
[ 7594.853214] (mount.ocfs2,11753,0):ocfs2_find_slot:490 ERROR: no free
slots available!
[ 7594.853467] (mount.ocfs2,11753,0):ocfs2_mount_volume:1859 ERROR: status
= -22

Any idea ?

2017-11-07 8:37 GMT+01:00 BASSAGET Cédric <cedric.bassaget.ml at gmail.com>:

> Hello,
> I'm currently running an OCFS2 cluster on two hosts.
> My ocfs2 partition is an iscsi disk mounted on both hosts.
>
> I need to add a third host to this cluster.
> I've set up  iscsi (& multipath), but now I'm looking for the correct way
> to add the ocfs2 partition to my existing cluster.
>
> Actual hosts : hostA and hostB (same config) :
> root at hostA:~# cat /etc/ocfs2/cluster.conf
> node:
>         ip_port = 7777
>         ip_address = 192.168.155.16
>         number = 1
>         name = virtm5
>         cluster = ocfs2
> node:
>         ip_port = 7777
>         ip_address = 192.168.155.17
>         number = 2
>         name = virtm6
>         cluster = ocfs2
> cluster:
>         node_count = 2
>         name = ocfs2
>
> hostC has no cluster.conf file.
>
> How do I "Live-add" hostC to this existing cluster ? I did not find a doc
> explaining this. Maybe I did not look in the right place...
> Found that : https://urldefense.proofpoint.com/v2/url?u=http-3A__www.waldersten.net_content.php-3F_archives_61-2DAdd-2D&d=DwIFaQ&c=RoP1YumCXCgaWHvlZYR8PZh8Bv7qIrMUB65eapI_JnE&r=wXmkJNAUtutY0U9inuQWCbzSSRji5zLpyR0a_Mek4jM&m=S4rtHTCCLTEz4uJSf3vcOPhgc5P0uiR5olS--k7Sx1U&s=n2kCvMaRK4kDTPulYwjKB2wZgsigXy_RZYUKkSsuP3A&e=
> OCFS2-node-to-online-cluster.html
> but I would prefer an official doc.
>
> Regards,
> Cédric
>
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