Launchpad has imported 2 comments from the remote bug at https://bugzilla.redhat.com/show_bug.cgi?id=1092208.
If you reply to an imported comment from within Launchpad, your comment will be sent to the remote bug automatically. Read more about Launchpad's inter-bugtracker facilities at https://help.launchpad.net/InterBugTracking. ------------------------------------------------------------------------ On 2014-04-29T02:00:52+00:00 Anchor wrote: Description of problem: When creating an RBD volume with 'virsh vol-create-as', the newly created volume gets a stripe unit of 1 byte and a stripe count of 4194304. This results in an RBD volume which is unusably slow (in my tests, it took over 30 minutes for GRUB to load in an affected guest). How reproducible: Run the following on an RBD-enabled system: virsh vol-create-as $RBD_POOL test 10G rbd info $RBD_POOL/test Actual results: 'rbd info' reports a stripe unit and count as described above. Expected results: The stripe unit should be 4 MiB, and the stripe count should be 1. Additional info: This is caused by incorrect parameter ordering on line 495 of src/storage/storage_backend_rbd.c. libvirt passes stripe_count before stripe_unit to rbd_create3, but the order of these parameters in librbd.h has stripe_unit before stripe_count. Thus, these parameters end up being reversed. I will be sending a trivial patch which fixes this problem to the libvirt mailing list shortly. Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1447030/comments/0 ------------------------------------------------------------------------ On 2014-04-29T04:15:51+00:00 Eric wrote: Will be in 1.2.4 release commit 4cd508ba4fc3cc33c72629fe8b9012e73d8dd8bf Author: Steven McDonald <[email protected]> Date: Tue Apr 29 12:19:01 2014 +1000 storage_backend_rbd: Correct argument order to rbd_create3 The stripe_unit and stripe_count arguments are passed to rbd_create3 in the wrong order, resulting in a stripe size of 1 byte with 4194304 stripes on newly created RBD volumes. https://bugzilla.redhat.com/show_bug.cgi?id=1092208 Signed-off-by: Steven McDonald <[email protected]> Reply at: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1447030/comments/1 ** Changed in: libvirt Status: Unknown => Fix Released ** Changed in: libvirt Importance: Unknown => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1447030 Title: RBD volumes created with reversed stripe_unit and stripe_count parameters To manage notifications about this bug go to: https://bugs.launchpad.net/libvirt/+bug/1447030/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
