[glance] [ops] Glance deployed on 2 nodes with rbd. Do I need a shared filesystem for the reserved stores ?
We are using OpenStack Train but we plan to migrate soon to something newer The glance-api service is deployed on 2 nodes. We used to have 2 backends for glance (file and rbd) but now we want to use only ceph. So I guess the configuration for the stores can be simply something like this [*] Reading: https://docs.openstack.org/glance/train/admin/multistores.html is not too clear to me if I have to configure somewhere filesystem_store_datadir. In particular do I have to configure the [os_glance_tasks_store] and [os_glance_staging_store] reserved stores ? If so, do I still need shared (between the 2 glance-api nodes )filesystems for them ? Thanks, Massimo [*] [DEFAULT] enabled_backends = rbd:rbd [glance_store] default_backend = rbd [rbd] store_description = Ceph in replica 3 rbd_store_pool = glance-cloudtest rbd_store_user = glance-cloudtest rbd_store_ceph_conf = /etc/ceph/ceph.conf rbd_store_chunk_size = 8
Hi Massimo, If you are planning to use glance-direct import method then you need to configure os_glance_staging_store using a shared filesystem. If you plan to use only web-download and copy-image import methods then you don't need a shared filesystem for os_glance_staging_store. If glance-direct needs to be used then the below path needs to be on a shared file system. [os_glance_staging_store] filesystem_store_datadir = /path/to/staging/store If only web-download and copy-image import methods will be used then still you need to set the above section in glance-api.conf but no need for a shared filesystem in this case. Thanks & Best Regards, Abhishek Kekane On Fri, Mar 26, 2021 at 11:29 AM Massimo Sgaravatto < massimo.sgaravatto@gmail.com> wrote:
We are using OpenStack Train but we plan to migrate soon to something newer
The glance-api service is deployed on 2 nodes.
We used to have 2 backends for glance (file and rbd) but now we want to use only ceph. So I guess the configuration for the stores can be simply something like this [*]
Reading: https://docs.openstack.org/glance/train/admin/multistores.html
is not too clear to me if I have to configure somewhere filesystem_store_datadir. In particular do I have to configure the [os_glance_tasks_store] and [os_glance_staging_store] reserved stores ? If so, do I still need shared (between the 2 glance-api nodes )filesystems for them ?
Thanks, Massimo
[*]
[DEFAULT] enabled_backends = rbd:rbd
[glance_store] default_backend = rbd
[rbd] store_description = Ceph in replica 3 rbd_store_pool = glance-cloudtest rbd_store_user = glance-cloudtest rbd_store_ceph_conf = /etc/ceph/ceph.conf rbd_store_chunk_size = 8
Also I forget to mention that Wallaby onwards there is no need to configure a shared filesystem for `os_glance_staging_store` for any of the import methods. Thanks & Best Regards, Abhishek Kekane On Fri, Mar 26, 2021 at 11:35 AM Abhishek Kekane <akekane@redhat.com> wrote:
Hi Massimo,
If you are planning to use glance-direct import method then you need to configure os_glance_staging_store using a shared filesystem. If you plan to use only web-download and copy-image import methods then you don't need a shared filesystem for os_glance_staging_store.
If glance-direct needs to be used then the below path needs to be on a shared file system. [os_glance_staging_store] filesystem_store_datadir = /path/to/staging/store
If only web-download and copy-image import methods will be used then still you need to set the above section in glance-api.conf but no need for a shared filesystem in this case.
Thanks & Best Regards,
Abhishek Kekane
On Fri, Mar 26, 2021 at 11:29 AM Massimo Sgaravatto < massimo.sgaravatto@gmail.com> wrote:
We are using OpenStack Train but we plan to migrate soon to something newer
The glance-api service is deployed on 2 nodes.
We used to have 2 backends for glance (file and rbd) but now we want to use only ceph. So I guess the configuration for the stores can be simply something like this [*]
Reading: https://docs.openstack.org/glance/train/admin/multistores.html
is not too clear to me if I have to configure somewhere filesystem_store_datadir. In particular do I have to configure the [os_glance_tasks_store] and [os_glance_staging_store] reserved stores ? If so, do I still need shared (between the 2 glance-api nodes )filesystems for them ?
Thanks, Massimo
[*]
[DEFAULT] enabled_backends = rbd:rbd
[glance_store] default_backend = rbd
[rbd] store_description = Ceph in replica 3 rbd_store_pool = glance-cloudtest rbd_store_user = glance-cloudtest rbd_store_ceph_conf = /etc/ceph/ceph.conf rbd_store_chunk_size = 8
Thanks a lot !! What about [os_glance_tasks_store] ? Is it needed ? Best Regards, Massimo On Fri, Mar 26, 2021 at 7:08 AM Abhishek Kekane <akekane@redhat.com> wrote:
Also I forget to mention that Wallaby onwards there is no need to configure a shared filesystem for `os_glance_staging_store` for any of the import methods.
Thanks & Best Regards,
Abhishek Kekane
On Fri, Mar 26, 2021 at 11:35 AM Abhishek Kekane <akekane@redhat.com> wrote:
Hi Massimo,
If you are planning to use glance-direct import method then you need to configure os_glance_staging_store using a shared filesystem. If you plan to use only web-download and copy-image import methods then you don't need a shared filesystem for os_glance_staging_store.
If glance-direct needs to be used then the below path needs to be on a shared file system. [os_glance_staging_store] filesystem_store_datadir = /path/to/staging/store
If only web-download and copy-image import methods will be used then still you need to set the above section in glance-api.conf but no need for a shared filesystem in this case.
Thanks & Best Regards,
Abhishek Kekane
On Fri, Mar 26, 2021 at 11:29 AM Massimo Sgaravatto < massimo.sgaravatto@gmail.com> wrote:
We are using OpenStack Train but we plan to migrate soon to something newer
The glance-api service is deployed on 2 nodes.
We used to have 2 backends for glance (file and rbd) but now we want to use only ceph. So I guess the configuration for the stores can be simply something like this [*]
Reading: https://docs.openstack.org/glance/train/admin/multistores.html
is not too clear to me if I have to configure somewhere filesystem_store_datadir. In particular do I have to configure the [os_glance_tasks_store] and [os_glance_staging_store] reserved stores ? If so, do I still need shared (between the 2 glance-api nodes )filesystems for them ?
Thanks, Massimo
[*]
[DEFAULT] enabled_backends = rbd:rbd
[glance_store] default_backend = rbd
[rbd] store_description = Ceph in replica 3 rbd_store_pool = glance-cloudtest rbd_store_user = glance-cloudtest rbd_store_ceph_conf = /etc/ceph/ceph.conf rbd_store_chunk_size = 8
participants (2)
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Abhishek Kekane
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Massimo Sgaravatto