What seems to be strange is that feature are *all disabled* when I
create some images.
While ceph should use default settings of jewel at least.
Do I need to place in ceph.conf something in order to use default settings?
Il 23/06/2017 23:43, Massimiliano Cuttini ha scritto:
I guess you updated those feature before the commit that fix this:
https://github.com/ceph/ceph/blob/master/src/include/rbd/features.h
As stated:
// features that make an image inaccessible for read or write by
/// clients that don't understand them
#define RBD_FEATURES_INCOMPATIBLE (RBD_FEATURE_LAYERING | \
RBD_FEATURE_STRIPINGV2 | \
RBD_FEATURE_DATA_POOL)
/// features that make an image unwritable by clients that don't understand
them
#define RBD_FEATURES_RW_INCOMPATIBLE (RBD_FEATURES_INCOMPATIBLE | \
RBD_FEATURE_EXCLUSIVE_LOCK | \
RBD_FEATURE_OBJECT_MAP | \
RBD_FEATURE_FAST_DIFF | \
RBD_FEATURE_DEEP_FLATTEN | \
RBD_FEATURE_JOURNALING)
Some features are no-way back: if you downgrade you cannot restore
anymore.
As stated here: https://bugzilla.redhat.com/show_bug.cgi?id=1326645
This is the right behaviour and redhat will not fix this.
So don't downgrade your features or you'll have to export-import all
the images.
I'm getting crazy.
Il 23/06/2017 22:36, David Turner ha scritto:
I upgraded to Jewel from Hammer and was able to enable those features
on all of my rbds that were format 2, which yours is. Just test it
on some non customer data and see how it goes.
On Fri, Jun 23, 2017, 4:33 PM Massimiliano Cuttini <m...@phoenixweb.it
<mailto:m...@phoenixweb.it>> wrote:
Ok,
At moment my client use only nbd-rbd, can I use all these feature
or this is something unavoidable?
I guess it's ok.
Reading around seems that a lost feature cannot be re-enabled due
to back-compatibility with old clients.
... I guess I'll need to export and import in a new image fully
feature.
Is it?
Il 23/06/2017 22:25, David Turner ha scritto:
All of the features you are talking about likely require the
exclusive-lock which requires the 4.9 linux kernel. You cannot
map any RBDs that have these features enabled with any kernel
older than that.
The features you can enable are layering, exclusive-lock,
object-map, and fast-diff. You cannot enable deep-flatten on
any RBD ever. RBD's can only be created with that feature. You
may need to enable these in a specific order. I believe that
the order I have the features listed is the order you need to
enable them in, at least that order should work.
On Fri, Jun 23, 2017 at 3:41 PM Massimiliano Cuttini
<m...@phoenixweb.it <mailto:m...@phoenixweb.it>> wrote:
Hi everybody,
I just realize that all my Images are completly without
features:
rbd info VHD-4c7ebb38-b081-48da-9b57-aac14bdf88c4
rbd image 'VHD-4c7ebb38-b081-48da-9b57-aac14bdf88c4':
size 102400 MB in 51200 objects
order 21 (2048 kB objects)
block_name_prefix: rbd_data.5fde2ae8944a
format: 2
features:
flags:
try to enabling them will get this error:
rbd: failed to update image features: (22) Invalid argument
2017-06-23 21:20:03.748746 7fdec1b34d80 -1 librbd: cannot update
immutable features
I read on the guide I shoulded had place in the
config|rbd_default_features|
What can I do now to enable this feature all feature of
jewel on all images?
Can I insert all the feature of jewel or is there any issue
with old kernel?
|
|
|Thanks,
Max
|
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