from:"Jon Skarpeteig"

[Bug 1641124] [NEW] Default failback value is badly chosen

2016-11-11 Thread Jon Skarpeteig

Public bug reported:

As described by:

https://help.ubuntu.com/lts/serverguide/multipath-setting-up-dm-
multipath.html

The default value for failback is set to manual, instead of immediate.
This effectively breaks the idea of multipath, which allows for
upgrading E.G SAN A side, then upgrade B side when A is complete.

With this set to manual, the system effectively halts. With a system
containing 4 paths to a block device, you'll see this in logs during SAN
firmware upgrade:

November 11th 2016, 13:58:05.0003   systemd 
dev-disk-by\x2did-wwn\x2d0x600a098038303731702b486638665456.device: Dev 
dev-disk-by\x2did-wwn\x2d0x600a098038303731702b486638665456.device appeared 
twice with different sysfs paths 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-4/target0:0:3/0:0:3:0/block/sde
 and 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-2/target0:0:1/0:0:1:0/block/sda
November 11th 2016, 13:58:05.0003   systemd 
dev-disk-by\x2did-scsi\x2d3600a098038303731702b486638665456.device: Dev 
dev-disk-by\x2did-scsi\x2d3600a098038303731702b486638665456.device appeared 
twice with different sysfs paths 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-4/target0:0:3/0:0:3:0/block/sde
 and 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-2/target0:0:1/0:0:1:0/block/sda
November 11th 2016, 13:58:05.0003   systemd 
dev-disk-by\x2did-scsi\x2d3600a098038303731702b486638665456.device: Dev 
dev-disk-by\x2did-scsi\x2d3600a098038303731702b486638665456.device appeared 
twice with different sysfs paths 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:03.0/:08:00.0/host7/rport-7:0-1/target7:0:0/7:0:0:0/block/sdc
 and 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-2/target0:0:1/0:0:1:0/block/sda
November 11th 2016, 13:58:05.0004   kernel  [585264.496735] sd 
0:0:1:0: Asymmetric access state changed
November 11th 2016, 13:58:05.0003   systemd 
dev-disk-by\x2did-scsi\x2d3600a098038303731702b486638665456.device: Dev 
dev-disk-by\x2did-scsi\x2d3600a098038303731702b486638665456.device appeared 
twice with different sysfs paths 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:03.0/:08:00.0/host7/rport-7:0-1/target7:0:0/7:0:0:0/block/sdc
 and 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-2/target0:0:1/0:0:1:0/block/sda
November 11th 2016, 13:58:05.0003   systemd 
dev-disk-by\x2did-wwn\x2d0x600a098038303731702b486638665456.device: Dev 
dev-disk-by\x2did-wwn\x2d0x600a098038303731702b486638665456.device appeared 
twice with different sysfs paths 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:03.0/:08:00.0/host7/rport-7:0-1/target7:0:0/7:0:0:0/block/sdc
 and 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-2/target0:0:1/0:0:1:0/block/sda
November 11th 2016, 13:58:05.0003   systemd 
dev-disk-by\x2did-wwn\x2d0x600a098038303731702b486638665456.device: Dev 
dev-disk-by\x2did-wwn\x2d0x600a098038303731702b486638665456.device appeared 
twice with different sysfs paths 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:03.0/:08:00.0/host7/rport-7:0-1/target7:0:0/7:0:0:0/block/sdc
 and 
/sys/devices/pci:00/:00:01.0/:01:00.0/:02:00.0/:03:00.0/:04:02.0/:07:00.0/host0/rport-0:0-2/target0:0:1/0:0:1:0/block/sda


With the end result that the filesystem is no longer available. If the root 
partition is on a multipath device (SAN device), then /bin etc. are gone.

Suggested fix: Set failback to immediate as default value

This would ensure that what you would expect to happen, actually happens
- which is when you upgrade SAN firmware, machines continue running like
nothing happened due to redundant paths

** Affects: multipath-tools (Ubuntu)
 Importance: Undecided
 Status: New

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Title:
  Default failback value is badly chosen

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[Bug 1598759] Re: incomplete apparmor definition for ntpd

2016-10-11 Thread Jon Skarpeteig

I am suffering from a similar issue, but with slightly different
behavior


# journalctl -u ntp
Oct 11 10:23:29 lys-stats ntp[5670]:  * Starting NTP server ntpd
Oct 11 10:23:29 lys-stats ntpd[5681]: ntpd 4.2.8p4@1.3265-o Wed Oct  5 12:34:45 
UTC 2016 (1): Starting
Oct 11 10:23:29 lys-stats ntp[5670]:...done.
Oct 11 10:23:29 lys-stats systemd[1]: Started LSB: Start NTP daemon.
Oct 11 10:23:29 lys-stats ntpd[5683]: proto: precision = 0.091 usec (-23)
Oct 11 10:23:29 lys-stats ntpd[5683]: restrict 0.0.0.0: KOD does nothing 
without LIMITED.
Oct 11 10:23:29 lys-stats ntpd[5683]: restrict ::: KOD does nothing without 
LIMITED.
Oct 11 10:23:29 lys-stats ntpd[5683]: Listen and drop on 0 v6wildcard [::]:123
Oct 11 10:23:29 lys-stats ntpd[5683]: Listen and drop on 1 v4wildcard 
0.0.0.0:123
Oct 11 10:23:29 lys-stats ntpd[5683]: ./../lib/isc/unix/ifiter_getifaddrs.c:99: 
unexpected error:
Oct 11 10:23:29 lys-stats ntpd[5683]: getting interface addresses: getifaddrs: 
Permission denied
Oct 11 10:23:29 lys-stats ntpd[5683]: unable to open routing socket (Permission 
denied) - using polled interface up
Oct 11 10:23:31 lys-stats ntpd[5683]: ./../lib/isc/unix/ifiter_getifaddrs.c:99: 
unexpected error:
Oct 11 10:23:31 lys-stats ntpd[5683]: getting interface addresses: getifaddrs: 
Permission denied
# dmesg -T
[Tue Oct 11 10:23:29 2016] audit: type=1400 audit(1476174209.696:24): 
apparmor="DENIED" operation="create" profile="/usr/sbin/ntpd" pid=5683 
comm="ntpd" family="netlink" sock_type="raw" protocol=0 requested_mask="create" 
denied_mask="create"
[Tue Oct 11 10:23:29 2016] audit: type=1400 audit(1476174209.700:25): 
apparmor="DENIED" operation="create" profile="/usr/sbin/ntpd" pid=5683 
comm="ntpd" family="netlink" sock_type="raw" protocol=0 requested_mask="create" 
denied_mask="create"
[Tue Oct 11 10:23:29 2016] audit: type=1400 audit(1476174209.700:26): 
apparmor="DENIED" operation="create" profile="/usr/sbin/ntpd" pid=5683 
comm="ntpd" family="netlink" sock_type="raw" protocol=0 requested_mask="create" 
denied_mask="create"
[Tue Oct 11 10:23:31 2016] audit: type=1400 audit(1476174211.356:27): 
apparmor="DENIED" operation="create" profile="/usr/sbin/ntpd" pid=5683 
comm="ntpd" family="netlink" sock_type="raw" protocol=0 requested_mask="create" 
denied_mask="create"
# apt-cache policy apparmor
apparmor:
  Installed: 2.10.95-0ubuntu2.2
  Candidate: 2.10.95-0ubuntu2.2
  Version table:
 *** 2.10.95-0ubuntu2.2 500
500 http://archive.ubuntu.com:80/ubuntu xenial-updates/main amd64 
Packages
100 /var/lib/dpkg/status
 2.10.95-0ubuntu2 500
500 http://archive.ubuntu.com:80/ubuntu xenial/main amd64 Packages
# apt-cache policy ntp
ntp:
  Installed: 1:4.2.8p4+dfsg-3ubuntu5.3
  Candidate: 1:4.2.8p4+dfsg-3ubuntu5.3
  Version table:
 *** 1:4.2.8p4+dfsg-3ubuntu5.3 500
500 http://archive.ubuntu.com:80/ubuntu xenial-updates/main amd64 
Packages
500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
100 /var/lib/dpkg/status
 1:4.2.8p4+dfsg-3ubuntu5 500
500 http://archive.ubuntu.com:80/ubuntu xenial/main amd64 Packages
# cat /etc/ntp.conf
tinker panic 0
disable monitor
restrict -4 default kod nomodify notrap nopeer noquery
restrict -6 default kod nomodify notrap nopeer noquery
restrict 127.0.0.1
restrict ::1
server pool.ntp.org iburst
driftfile /var/lib/ntp/drift
# cat /etc/apparmor.d/usr.sbin.ntpd
# vim:syntax=apparmor
# Updated for Ubuntu by: Jamie Strandboge 
# --
#
#Copyright (C) 2002-2005 Novell/SUSE
#Copyright (C) 2009-2012 Canonical Ltd.
#
#This program is free software; you can redistribute it and/or
#modify it under the terms of version 2 of the GNU General Public
#License published by the Free Software Foundation.
#
# --

#include 
#include 
/usr/sbin/ntpd {
  #include 
  #include 
  #include 

  capability ipc_lock,
  capability net_bind_service,
  capability setgid,
  capability setuid,
  capability sys_chroot,
  capability sys_resource,
  capability sys_time,
  capability sys_nice,

  # ntp uses AF_INET, AF_INET6 and AF_UNSPEC
  network dgram,
  network stream,

  @{PROC}/net/if_inet6 r,
  @{PROC}/*/net/if_inet6 r,
  @{NTPD_DEVICE} rw,
  # pps devices are almost exclusively used with NTP
  /dev/pps[0-9]* rw,

  /{,s}bin/  r,
  /usr/{,s}bin/  r,
  /usr/sbin/ntpd rmix,

  /etc/ntp.conf r,
  /etc/ntp.conf.dhcp r,
  /etc/ntpd.conf r,
  /etc/ntpd.conf.tmp r,
  /var/lib/ntp/ntp.conf.dhcp r,

  /etc/ntp.keys r,
  /etc/ntp/** r,

  /etc/ntp.drift rwl,
  /etc/ntp.drift.TEMP rwl,
  /etc/ntp/drift* rwl,
  /var/lib/ntp/*drift rw,
  /var/lib/ntp/*drift.TEMP rw,

  /var/log/ntp w,
  /var/log/ntp.log w,
  /var/log/ntpd w,
  /var/log/ntpstats/clockstats* rwl,
  /var/log/ntpstats/loopstats*  rwl,
  /var/log/ntpstats/peerstats*  rwl,
  /var/log/ntpstats/protostats* rwl,

[Bug 1332440] Re: apt-get update very slow when ulimit -n is big

2016-01-29 Thread Jon Skarpeteig

When running Ubuntu 14.04 inside Docker I've seen this issue with CentOS
as well:

CentOS 7.2
3.10.0-327.4.4.el7.x86_64

I tested a few kernels with Ubuntu 14.04 as host OS and I found:

apt-get update extremely slow on kernels:

3.13.0-76
3.13.0-65
3.13.0-30
3.13.0-29

apt-get update fast on kernel:

3.13.0-45

So my workaround for now is to install and run kernel 3.13.0-45

My working setup is;

# docker --version
Docker version 1.9.1, build a34a1d5
# uname -a
Linux lys-jenkins 3.13.0-45-generic #74-Ubuntu SMP Tue Jan 13 19:36:28 UTC 2015 
x86_64 x86_64 x86_64 GNU/Linux

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Title:
  apt-get update very slow when ulimit -n is big

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[Bug 1332440] Re: apt-get update very slow when ulimit -n is big

2014-07-21 Thread Jon Skarpeteig

Running apt-get update takes ~80 seconds for me running:

* Virtualbox 4.3.12
* Ubuntu 14.04 LTS 64 bit desktop (3.13.0-30-generic #55-Ubuntu SMP)
* Docker version 1.0.1, build 990021a
* Official 'ubuntu:14.04' docker image

In the VirtualBox machine it takes  10s

Running a similar setup in VMware does not display this behavior:

* VMware ESXi 5.5
* Ubuntu 14.04 LTS 64 bit server (3.13.0-30-generic #55-Ubuntu SMP)
* Docker version 1.0.1, build 990021a

apt-get executed in 9.87 seconds
* Official 'ubuntu:14.04' docker image

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Title:
  apt-get update very slow when ulimit -n is big

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[Bug 668415] Re: Movement of Unity launcher

2012-04-20 Thread Jon Skarpeteig

Given the 290 comments before me, I realize I won't be adding anything
new, but I wanted to share my frustration anyway, just to point out how
annoying this is to a lot of people by pure volume of complaints.

I have been using the unity-rotate plugin a while, but it has severe
limitations, such as it only works in 3D and doesn't support 12.04.

Why don't you believe in the freedom to choose?

There's so many options with Ubuntu to choose how you want your desktop,
E.G using KDE or something completely different. This tiny option, which
affect so many peoples experience with Ubuntu as a whole should be
configurable.

Who are you to decide that my 90 degrees tilted widescreen obviously
must have the launcher at the side?

One size fits all, simply doesn't fit all. Setups differ, hardware
differ - what makes sense on your setup, doesn't have to make sense
elsewhere.

Why don't you allow Windows users to have a tiny piece of familiar
environment in Ubuntu?

Coming from Windows to Ubuntu, or switching back and forth between
Windows and Ubuntu (E.G virtualized) comes with a certain set of
'trained'/'built-in' mouse movements, such as 'drag to the lower left'
which always hits start menu. In Unity, with the same logic, you close
whatever window on top that is maximized when pulling to the upper left
corner!

Why mess with peoples heads?

Most people have brains that are wired to read in a horizontal line.
This skill is continuously improved while reading text. Getting an
overview of running applications if you don't already have a mental
image of this (which is the default, when launcher is hidden), you need
to move your eyes down the line of the launcher - again inefficient and
frustrating.

- FRUSTRATED USER -

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Title:
  Movement of Unity launcher

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[Bug 1641124] [NEW] Default failback value is badly chosen

[Bug 1598759] Re: incomplete apparmor definition for ntpd

[Bug 1332440] Re: apt-get update very slow when ulimit -n is big

[Bug 1332440] Re: apt-get update very slow when ulimit -n is big

[Bug 668415] Re: Movement of Unity launcher

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