Hi all,
The online manual (http://ceph.com/docs/master/man/8/rbd/) for rbd has
documentation for the 'du' command. I'm running ceph 0.94.2 and that
command isn't recognized, nor is it in the man page.
Is there another command that will "calculate the provisioned and actual
disk usage of all imag
at 8:24 PM, Haomai Wang wrote:
> What's your ceph version?
>
> Do you enable rbd cache? By default, each Image should only have one
> extra thread(maybe we also should obsolete this?).
>
> On Sat, Nov 21, 2015 at 9:26 AM, Allen Liao
> wrote:
> > I am developing a p
I am developing a python application (using rbd.py) that requires querying
information about tens of thousands of rbd images. I have noticed that the
number of threads in my process grow linearly with each Image object that
is created.
After creating about 800 Image objects (that all share a sing
Does ceph guarantee image consistency if an rbd image is unmapped on one
machine then immediately mapped on another machine? If so, does the same
apply to issuing a snapshot command on machine B as soon as the unmap
command finishes on machine A?
In other words, does the unmap operation flush all
How expensive are the calls to list the rbd images (rbd ls) and their
snapshots (rbd snap ls). Is the metatdata for what images and snapshots
are stored in ceph kept in memory on the MON (in which case the calls would
be cheap)?
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Hi all,
I'm unable to map a block device for an image that was created with
exclusive-lock feature:
$ sudo rbd create foo --size 4096 --image-features=4 --image-format=2
$ sudo rbd map foo
rbd: sysfs write failed
rbd: map failed: (6) No such device or address
How do I map the image? I've tried
Hi all,
The online manual (http://ceph.com/docs/master/man/8/rbd/) for rbd has
documentation for the 'du' command. I'm running ceph 0.94.2 and that
command isn't recognized, nor is it in the man page.
Is there another command that will "calculate the provisioned and actual
disk usage of all imag
