Re: [Bug 1727358] Re: cloud-init is slow to complete init on minimized images
On Thu, Oct 26, 2017 at 06:07:57PM -, Mathieu Trudel-Lapierre wrote: > You can easily reproduce this by running the following image in virt- > manager with a default setup (and optionally add a RNG device if > necessary): The defaults in both virt-manager and libvirt change over time. For reproducibility, it's helpful to have either a libvirt xml, or for maximum reproducibility, a full qemu commandline from a running instance. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727358 Title: cloud-init is slow to complete init on minimized images To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1727358/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1727358] Re: cloud-init is slow to complete init on minimized images
On Thu, Oct 26, 2017 at 03:56:24PM -, Scott Moser wrote: > You can grep through, the onlyi real function taht uses it is > 'rand_str'. and i'm not sure really why that would be called at the > point that you're seeing the slow down. > I think it more valuable for you to figure out why your environment is > causing this issue and fixing that rather than fixing cloud-init (and > subsequently all users of entropy). We know that Ubuntu Cloud images must function in entropy-poor environments; that's why we ship pollinate by default. If this particular delay is due to cloud-init (or something it invoked) consuming entropy in early boot and blocking, that is a problem, even if we do resolve the lack of an in-kernel entropy source for this particular image and use case. > Also, information about how you've come across this bug would be good. I don't think I have ever seen the boot delay Mathieu is reporting, even using the same image. So we're dependent on him to provide a reproducer. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727358 Title: cloud-init is slow to complete init on minimized images To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1727358/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1727358] Re: cloud-init is slow to complete init on minimized images
You can grep through, the onlyi real function taht uses it is 'rand_str'.
and i'm not sure really why that would be called at the point that you're
seeing the slow down.
I think it more valuable for you to figure out why your environment is
causing this issue and fixing that rather than fixing cloud-init (and
subsequently all users of entropy).
Also, information about how you've come across this bug would be good.
On Thu, Oct 26, 2017 at 11:24 AM, Steve Langasek <
steve.langa...@canonical.com> wrote:
> On Thu, Oct 26, 2017 at 10:37:37AM -, Scott Moser wrote:
> > Only via 'import random' and light usage.
>
> Even "light" usage is going to block at this point in the boot; can you
> give
> me a pointer into where this is in the code, so I can try to assess if this
> should be avoided?
>
> --
> You received this bug notification because you are a member of Canonical
> Cloudware, which is subscribed to cloud-init.
> Matching subscriptions: cloud-init bugs
> https://bugs.launchpad.net/bugs/1727358
>
> Title:
> cloud-init is slow to complete init on minimized images
>
> Status in cloud-init:
> Incomplete
> Status in cloud-init package in Ubuntu:
> Incomplete
>
> Bug description:
> http://paste.ubuntu.com/25816789/ for the full logs.
>
> cloud-init is very slow to complete its initialization steps.
> Specifically, the 'init' takes over 150 seconds.
>
> Cloud-init v. 17.1 running 'init-local' at Wed, 25 Oct 2017 13:22:07
> +. Up 2.39 seconds.
> 2017-10-25 13:22:07,157 - util.py[WARNING]: did not find either path
> /sys/class/dmi/id or dmidecode command
> Cloud-init v. 17.1 running 'init' at Wed, 25 Oct 2017 13:22:16 +. Up
> 11.37 seconds.
> ci-info: Net device
> info+
> ci-info: ++---+-+---+---+
> ---+
> ci-info: | Device | Up | Address | Mask | Scope |
> Hw-Address|
> ci-info: ++---+-+---+---+
> ---+
> ci-info: | ens3: | True | 192.168.100.161 | 255.255.255.0 | . |
> 52:54:00:bb:ad:fb |
> ci-info: | ens3: | True |.| . | d |
> 52:54:00:bb:ad:fb |
> ci-info: | lo: | True |127.0.0.1| 255.0.0.0 | . |
> . |
> ci-info: | lo: | True |.| . | d |
> . |
> ci-info: | sit0: | False |.| . | . |
> . |
> ci-info: ++---+-+---+---+
> ---+
> ci-info: Route IPv4
> info
> ci-info: +---+---+---+-+-
> --+---+
> ci-info: | Route | Destination |Gateway| Genmask |
> Interface | Flags |
> ci-info: +---+---+---+-+-
> --+---+
> ci-info: | 0 |0.0.0.0| 192.168.100.1 | 0.0.0.0 |
> ens3 | UG |
> ci-info: | 1 | 192.168.100.0 |0.0.0.0| 255.255.255.0 |
> ens3 | U |
> ci-info: | 2 | 192.168.100.1 |0.0.0.0| 255.255.255.255 |
> ens3 | UH |
> ci-info: +---+---+---+-+-
> --+---+
> 2017-10-25 13:24:38,187 - util.py[WARNING]: Failed to resize filesystem
> (cmd=('resize2fs', '/dev/root'))
> 2017-10-25 13:24:38,193 - util.py[WARNING]: Running module resizefs
> ( packages/cloudinit/config/cc_resizefs.py'>) failed
> Generating public/private rsa key pair.
> Your identification has been saved in /etc/ssh/ssh_host_rsa_key.
> Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.
> The key fingerprint is:
> SHA256:LKNlCqqOgPB8KBKGfPhFO5Rs6fDMnAvVet/W9i4vLxY root@cloudimg
> The key's randomart image is:
> +---[RSA 2048]+
> | |
> |. + |
> | . O . |
> |o . % +. |
> |++.o %=.S|
> |+=ooo=+o. . .E |
> |* +.+. . o o. |
> |=. . . .=. |
> |+. . B= |
> +[SHA256]-+
> Generating public/private dsa key pair.
> Your identification has been saved in /etc/ssh/ssh_host_dsa_key.
> Your public key has been saved in /etc/ssh/ssh_host_dsa_key.pub.
> The key fingerprint is:
> SHA256:dNWNyBHqTUCl820/vL0dEhOVDFYJzqr1WeuqV1PAmjk root@cloudimg
> The key's randomart image is:
> +---[DSA 1024]+
> | .oo=X==o|
> | =* *+.|
> |. = .B . |
> | . o =E.. .|
> |S .oo+o..|
> | o ..*+.|
> | . +.=o|
> | .o *|
> | .o..++|
> +[SHA256]-+
> Generating public/private ecdsa key pair.
> Your identification has been saved in /etc/ssh/ssh_host_ecdsa_key.
> Your public key has been saved in /etc/ssh/ssh_host_ecdsa_key.pub.
> The key fingerpri
Re: [Bug 1727358] Re: cloud-init is slow to complete init on minimized images
On Thu, Oct 26, 2017 at 10:37:37AM -, Scott Moser wrote: > Only via 'import random' and light usage. Even "light" usage is going to block at this point in the boot; can you give me a pointer into where this is in the code, so I can try to assess if this should be avoided? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727358 Title: cloud-init is slow to complete init on minimized images To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1727358/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
Re: [Bug 1727358] Re: cloud-init is slow to complete init on minimized images
Only via 'import random' and light usage.
On Oct 25, 2017 11:21 PM, "Steve Langasek"
wrote:
> On Thu, Oct 26, 2017 at 01:43:12AM -, Scott Moser wrote:
> > possibly related, but was fixed:
> > https://bugs.python.org/issue25420
>
> Does cloud-init itself consume entropy when it runs?
>
> --
> You received this bug notification because you are a member of Canonical
> Cloudware, which is subscribed to cloud-init.
> Matching subscriptions: cloud-init bugs
> https://bugs.launchpad.net/bugs/1727358
>
> Title:
> cloud-init is slow to complete init on minimized images
>
> Status in cloud-init:
> Incomplete
> Status in cloud-init package in Ubuntu:
> Incomplete
>
> Bug description:
> http://paste.ubuntu.com/25816789/ for the full logs.
>
> cloud-init is very slow to complete its initialization steps.
> Specifically, the 'init' takes over 150 seconds.
>
> Cloud-init v. 17.1 running 'init-local' at Wed, 25 Oct 2017 13:22:07
> +. Up 2.39 seconds.
> 2017-10-25 13:22:07,157 - util.py[WARNING]: did not find either path
> /sys/class/dmi/id or dmidecode command
> Cloud-init v. 17.1 running 'init' at Wed, 25 Oct 2017 13:22:16 +. Up
> 11.37 seconds.
> ci-info: Net device
> info+
> ci-info: ++---+-+---+---+
> ---+
> ci-info: | Device | Up | Address | Mask | Scope |
> Hw-Address|
> ci-info: ++---+-+---+---+
> ---+
> ci-info: | ens3: | True | 192.168.100.161 | 255.255.255.0 | . |
> 52:54:00:bb:ad:fb |
> ci-info: | ens3: | True |.| . | d |
> 52:54:00:bb:ad:fb |
> ci-info: | lo: | True |127.0.0.1| 255.0.0.0 | . |
> . |
> ci-info: | lo: | True |.| . | d |
> . |
> ci-info: | sit0: | False |.| . | . |
> . |
> ci-info: ++---+-+---+---+
> ---+
> ci-info: Route IPv4
> info
> ci-info: +---+---+---+-+-
> --+---+
> ci-info: | Route | Destination |Gateway| Genmask |
> Interface | Flags |
> ci-info: +---+---+---+-+-
> --+---+
> ci-info: | 0 |0.0.0.0| 192.168.100.1 | 0.0.0.0 |
> ens3 | UG |
> ci-info: | 1 | 192.168.100.0 |0.0.0.0| 255.255.255.0 |
> ens3 | U |
> ci-info: | 2 | 192.168.100.1 |0.0.0.0| 255.255.255.255 |
> ens3 | UH |
> ci-info: +---+---+---+-+-
> --+---+
> 2017-10-25 13:24:38,187 - util.py[WARNING]: Failed to resize filesystem
> (cmd=('resize2fs', '/dev/root'))
> 2017-10-25 13:24:38,193 - util.py[WARNING]: Running module resizefs
> ( packages/cloudinit/config/cc_resizefs.py'>) failed
> Generating public/private rsa key pair.
> Your identification has been saved in /etc/ssh/ssh_host_rsa_key.
> Your public key has been saved in /etc/ssh/ssh_host_rsa_key.pub.
> The key fingerprint is:
> SHA256:LKNlCqqOgPB8KBKGfPhFO5Rs6fDMnAvVet/W9i4vLxY root@cloudimg
> The key's randomart image is:
> +---[RSA 2048]+
> | |
> |. + |
> | . O . |
> |o . % +. |
> |++.o %=.S|
> |+=ooo=+o. . .E |
> |* +.+. . o o. |
> |=. . . .=. |
> |+. . B= |
> +[SHA256]-+
> Generating public/private dsa key pair.
> Your identification has been saved in /etc/ssh/ssh_host_dsa_key.
> Your public key has been saved in /etc/ssh/ssh_host_dsa_key.pub.
> The key fingerprint is:
> SHA256:dNWNyBHqTUCl820/vL0dEhOVDFYJzqr1WeuqV1PAmjk root@cloudimg
> The key's randomart image is:
> +---[DSA 1024]+
> | .oo=X==o|
> | =* *+.|
> |. = .B . |
> | . o =E.. .|
> |S .oo+o..|
> | o ..*+.|
> | . +.=o|
> | .o *|
> | .o..++|
> +[SHA256]-+
> Generating public/private ecdsa key pair.
> Your identification has been saved in /etc/ssh/ssh_host_ecdsa_key.
> Your public key has been saved in /etc/ssh/ssh_host_ecdsa_key.pub.
> The key fingerprint is:
> SHA256:N3RTlPa7KU5ryq6kJAO8Tiq90ub4P1DGSofn6jFkM3k root@cloudimg
> The key's randomart image is:
> +---[ECDSA 256]---+
> | .o. |
> | .o |
> | o . o. . |
> | +.*. . . .|
> | .*XE S o .|
> | oo++. . . |
> | oo= o . . . o|
> |o.Oo. + o . .o.o |
> |oB=+.. . .o++o. |
> +[SHA256]-+
> Generating public/private ed25519 key pair.
> Your identification has been saved in /etc/ssh/ssh_host_ed25519_key.
> Your public
Re: [Bug 1727358] Re: cloud-init is slow to complete init on minimized images
On Thu, Oct 26, 2017 at 01:43:12AM -, Scott Moser wrote: > possibly related, but was fixed: > https://bugs.python.org/issue25420 Does cloud-init itself consume entropy when it runs? -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1727358 Title: cloud-init is slow to complete init on minimized images To manage notifications about this bug go to: https://bugs.launchpad.net/cloud-init/+bug/1727358/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
