[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
I submitted a fix upstream: https://github.com/zfsonlinux/zfs/pull/6807/ -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
Since this affects root on ZFS and the original patch no longer applies (and ZFS on root) is not currently supported, I am reluctantly going to close is issue. If a clean fix for ZFS on root for newer Zesty+ initramfs scripts is available I am happy to re-apply them for newer releases. However, I am not going to forward port the original changes since the delta is too large and I am not able to test these (as we don't have ZFS on root by default). ** Changed in: zfs-linux (Ubuntu Zesty) Status: Confirmed => Won't Fix ** Changed in: zfs-linux (Ubuntu) Status: In Progress => Won't Fix -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
Unsubscribing ~ubuntu-sponsors as there's nothing left to do. If that is incorrect, please feel free to resubscribe. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
** Also affects: zfs-linux (Ubuntu Zesty) Importance: Undecided Status: New ** Also affects: zfs-linux (Ubuntu Xenial) Importance: Undecided Status: New ** Changed in: zfs-linux (Ubuntu Xenial) Status: New => Fix Released ** Changed in: zfs-linux (Ubuntu Xenial) Importance: Undecided => Medium ** Changed in: zfs-linux (Ubuntu Xenial) Assignee: (unassigned) => Colin Ian King (colin-king) ** Changed in: zfs-linux (Ubuntu Zesty) Status: New => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
** Changed in: zfs-linux (Ubuntu) Status: Confirmed => In Progress ** Changed in: zfs-linux (Ubuntu) Assignee: (unassigned) => Colin Ian King (colin-king) ** Changed in: zfs-linux (Ubuntu) Importance: Low => Medium -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
** Tags removed: patch ** Tags added: regression-release zesty -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
This has regressed in Zesty, because someone replaced the zfs-initramfs script. ** Changed in: zfs-linux (Ubuntu) Status: Fix Released => Confirmed -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
This bug was fixed in the package zfs-linux - 0.6.5.6-0ubuntu8 --- zfs-linux (0.6.5.6-0ubuntu8) xenial; urgency=medium [ Richard Laager ] * zfs-initramfs: Set elevator=noop on disks used by the root pool. (LP: #1550301) -- Colin Ian King Wed, 13 Apr 2016 11:44:39 +0100 ** Changed in: zfs-linux (Ubuntu) Status: New => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
I'll get this applied and uploaded today -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
I'd call this a bug fix. Adjusting title and unsubscribing release team. Please go ahead. ** Summary changed: - [FFe] ZFS: Set elevator=noop on disks in the root pool + ZFS: Set elevator=noop on disks in the root pool -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
** Attachment added: "Refreshed & re-tested debdiff against 0.6.5.6." https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+attachment/4634753/+files/zfs-scheduler.debdiff.2 ** Description changed: ZFS-on-Linux has its own I/O scheduler, so it sets the "noop" elevator on whole disks used in a pool. https://github.com/zfsonlinux/zfs/issues/90 It does not set the scheduler for a disk if a partition is used in a pool out of respect for the possibility that there are non-ZFS partitions on the same disk. https://github.com/zfsonlinux/zfs/issues/152 For regular pools, the recommendation is to use whole disks. For a root pools, it's just the opposite. The typical case is that partitions are used. And, for root pools, it is unlikely that the same disks have non- - ZFS filesystems. Therefore, I think we want to set the "noop" scheduler - for disks in the root pool. + ZFS filesystems. + + The debdiff in comment #5 applies cleanly to the latest package and + functions correctly. This is an important change for root-on-ZFS users. + It has no effect on non-root-on-ZFS installs, because the code is only + in the zfs-initramfs package. ** Summary changed: - ZFS: Set elevator=noop on disks in the root pool + [FFe] ZFS: Set elevator=noop on disks in the root pool -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: [FFe] ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
ZoL 0.6.5.6 has landed, so this should be good to go. Note that it only affects zfs-initramfs. It doesn't affect any other use of ZFS. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
This requires the -L flag to zpool status. It sounds like ZoL 0.6.5.6 will land in Xenial, so then this is good to go at that time too. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
** Changed in: zfs-linux (Ubuntu) Importance: Undecided => Low -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
The attachment "zfs-scheduler.debdiff" seems to be a debdiff. The ubuntu-sponsors team has been subscribed to the bug report so that they can review and hopefully sponsor the debdiff. If the attachment isn't a patch, please remove the "patch" flag from the attachment, remove the "patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe the team. [This is an automated message performed by a Launchpad user owned by ~brian-murray, for any issue please contact him.] ** Tags added: patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
[Bug 1550301] Re: ZFS: Set elevator=noop on disks in the root pool
** Patch added: "zfs-scheduler.debdiff" https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+attachment/4581751/+files/zfs-scheduler.debdiff ** Description changed: ZFS-on-Linux has its own I/O scheduler, so it sets the "noop" elevator - on whole disks used in a pool. See: + on whole disks used in a pool. https://github.com/zfsonlinux/zfs/issues/90 It does not set the scheduler for a disk if a partition is used in a pool out of respect for the possibility that there are non-ZFS partitions on the same disk. + https://github.com/zfsonlinux/zfs/issues/152 For regular pools, the recommendation is to use whole disks. For a root pools, it's just the opposite. The typical case is that partitions are used. And, for root pools, it is unlikely that the same disks have non- ZFS filesystems. Therefore, I think we want to set the "noop" scheduler for disks in the root pool. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1550301 Title: ZFS: Set elevator=noop on disks in the root pool To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/zfs-linux/+bug/1550301/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
