Your message dated Tue, 14 May 2019 13:14:53 +0200
with message-id <[email protected]>
and subject line Re: Bug#927458: apt-daily.timer Adding random time every 5
seconds
has caused the Debian Bug report #927458,
regarding apt-daily.timer Adding random time every 5 seconds
to be marked as done.
This means that you claim that the problem has been dealt with.
If this is not the case it is now your responsibility to reopen the
Bug report if necessary, and/or fix the problem forthwith.
(NB: If you are a system administrator and have no idea what this
message is talking about, this may indicate a serious mail system
misconfiguration somewhere. Please contact [email protected]
immediately.)
--
927458: https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=927458
Debian Bug Tracking System
Contact [email protected] with problems
--- Begin Message ---
Package: apt
Version: 1.4.9
Severity: normal
Dear Maintainer,
Severity note: This appears to be relatively trivial problem in its impact
on the system. However, it has two possible more serious consequences:
1. The logs will end up taking a lot of space because of the constant messges.
2. The repeated randomization may end up producing really wild random numbers,
as a result of which the timers may fire either way too fast or way too slow.
The log spam also makes it more difficult to identify interesting things in the
log (I know
there are ways around that), and the whole process must impose some performance
penalty.
* What led up to the situation?
After a recent upgrade to stretch, my logs are filled with messages like this
Apr 19 12:38:27 ross-mail systemd[1]: apt-daily.timer: Adding 9h 57min
34.907602s random time.
Apr 19 12:38:27 ross-mail systemd[1]: apt-daily-upgrade.timer: Adding 51min
17.211953s random time.
Apr 19 12:38:32 ross-mail systemd[1]: Time has been changed
Apr 19 12:38:32 ross-mail systemd[1]: apt-daily.timer: Adding 11h 36min
18.852889s random time.
Apr 19 12:38:32 ross-mail systemd[1]: apt-daily-upgrade.timer: Adding 7min
19.203357s random time.
Apr 19 12:38:37 ross-mail systemd[1]: Time has been changed
Apr 19 12:38:37 ross-mail systemd[1]: apt-daily.timer: Adding 11h 4min
53.484274s random time.
Apr 19 12:38:37 ross-mail systemd[1]: apt-daily-upgrade.timer: Adding 4min
43.246953s random time.
Apr 19 12:38:42 ross-mail systemd[1]: Time has been changed
Apr 19 12:38:42 ross-mail systemd[1]: apt-daily.timer: Adding 6h 27min
36.345186s random time.
Apr 19 12:38:42 ross-mail systemd[1]: apt-daily-upgrade.timer: Adding 15min
43.087263s random time.
Apr 19 12:38:47 ross-mail systemd[1]: Time has been changed
Apr 19 12:38:47 ross-mail systemd[1]: apt-daily.timer: Adding 4h 46min
3.780698s random time.
Apr 19 12:38:47 ross-mail systemd[1]: apt-daily-upgrade.timer: Adding 2min
25.572155s random time.
Apr 19 12:38:52 ross-mail systemd[1]: Time has been changed
Apr 19 12:38:52 ross-mail systemd[1]: apt-daily.timer: Adding 6h 54min
42.591556s random time.
Apr 19 12:38:52 ross-mail systemd[1]: apt-daily-upgrade.timer: Adding 18min
42.538730s random time.
Apr 19 12:38:57 ross-mail systemd[1]: Time has been changed
Apr 19 12:38:57 ross-mail systemd[1]: apt-daily.timer: Adding 40min 9.786990s
random time.
repeating endlessly.
The system is running under HyperV, which I gather resets the clock every 5
seconds.
* What exactly did you do (or not do) that was effective (or
ineffective)?
Searching turned up Debian bug 600262, which sounds similar. However, the
solution
to it was to switch to the systemd timer, which seems to be source of the
current problem.
https://askubuntu.com/questions/888493/var-log-syslog-systemd1-time-has-been-changed-message-every-5-seconds/890354#890354?newreg=0c5a628a4d8a4809a9298176c94d004e
reports a similar problem. The top-rated solution is to disable the time
update in HyperV. Apart from the fact that I lack
the necessary rights, this seems liable to cause clock drift.
An alternate solution is to modify the filters for the log file to keep out the
messages.
This is probably what I'll do, though I'm not sure the mechanics are is given
there.
The suggestion modified /etc/rsyslog.d/, and I thought systemd was now doing
the logging.
The same alternate solution says another alternative is to disable host time
sync on VMBUS.
It's not explained, and once again completely breaking the connection seems
extreme.
* What was the outcome of this action?
Nothing done yet. If I succeed in quieting the log, I'll still have the
repeated timer updates.
I do not know if the repeated random times are additive, or simply replace the
previous one.
In the former case, the effects seem likely to be bad. E.g., if the times
added accumulate,
the timer may never fire.
* What outcome did you expect instead?
I would like for my VM time to remain syncronized with the host,
for my log not to be filled a huge number of junk messages,
and for the random timers to be reset just once.
-- Package-specific info:
-- apt-config dump --
APT "";
APT::Architecture "amd64";
APT::Build-Essential "";
APT::Build-Essential:: "build-essential";
APT::Install-Recommends "1";
APT::Install-Suggests "0";
APT::Sandbox "";
APT::Sandbox::User "_apt";
APT::Authentication "";
APT::Authentication::TrustCDROM "true";
APT::NeverAutoRemove "";
APT::NeverAutoRemove:: "^firmware-linux.*";
APT::NeverAutoRemove:: "^linux-firmware$";
APT::NeverAutoRemove:: "^linux-image-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^linux-image-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^linux-headers-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^linux-headers-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^linux-image-extra-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^linux-image-extra-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^linux-signed-image-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^linux-signed-image-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-image-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-image-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-headers-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^kfreebsd-headers-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^gnumach-image-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^gnumach-image-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^.*-modules-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^.*-modules-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^.*-kernel-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^.*-kernel-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^linux-backports-modules-.*-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^linux-backports-modules-.*-4\.9\.0-9-amd64$";
APT::NeverAutoRemove:: "^linux-tools-4\.9\.0-8-amd64$";
APT::NeverAutoRemove:: "^linux-tools-4\.9\.0-9-amd64$";
APT::VersionedKernelPackages "";
APT::VersionedKernelPackages:: "linux-image";
APT::VersionedKernelPackages:: "linux-headers";
APT::VersionedKernelPackages:: "linux-image-extra";
APT::VersionedKernelPackages:: "linux-signed-image";
APT::VersionedKernelPackages:: "kfreebsd-image";
APT::VersionedKernelPackages:: "kfreebsd-headers";
APT::VersionedKernelPackages:: "gnumach-image";
APT::VersionedKernelPackages:: ".*-modules";
APT::VersionedKernelPackages:: ".*-kernel";
APT::VersionedKernelPackages:: "linux-backports-modules-.*";
APT::VersionedKernelPackages:: "linux-tools";
APT::Never-MarkAuto-Sections "";
APT::Never-MarkAuto-Sections:: "metapackages";
APT::Never-MarkAuto-Sections:: "contrib/metapackages";
APT::Never-MarkAuto-Sections:: "non-free/metapackages";
APT::Never-MarkAuto-Sections:: "restricted/metapackages";
APT::Never-MarkAuto-Sections:: "universe/metapackages";
APT::Never-MarkAuto-Sections:: "multiverse/metapackages";
APT::Move-Autobit-Sections "";
APT::Move-Autobit-Sections:: "oldlibs";
APT::Move-Autobit-Sections:: "contrib/oldlibs";
APT::Move-Autobit-Sections:: "non-free/oldlibs";
APT::Move-Autobit-Sections:: "restricted/oldlibs";
APT::Move-Autobit-Sections:: "universe/oldlibs";
APT::Move-Autobit-Sections:: "multiverse/oldlibs";
APT::Update "";
APT::Update::Post-Invoke-Success "";
APT::Update::Post-Invoke-Success:: "test -x /usr/bin/apt-show-versions || exit
0 ; apt-show-versions -i";
APT::Update::Post-Invoke "";
APT::Update::Post-Invoke:: "[ ! -x /usr/bin/debtags ] || debtags update ||
true";
APT::Architectures "";
APT::Architectures:: "amd64";
APT::Compressor "";
APT::Compressor::. "";
APT::Compressor::.::Name ".";
APT::Compressor::.::Extension "";
APT::Compressor::.::Binary "";
APT::Compressor::.::Cost "0";
APT::Compressor::lz4 "";
APT::Compressor::lz4::Name "lz4";
APT::Compressor::lz4::Extension ".lz4";
APT::Compressor::lz4::Binary "false";
APT::Compressor::lz4::Cost "50";
APT::Compressor::gzip "";
APT::Compressor::gzip::Name "gzip";
APT::Compressor::gzip::Extension ".gz";
APT::Compressor::gzip::Binary "gzip";
APT::Compressor::gzip::Cost "100";
APT::Compressor::gzip::CompressArg "";
APT::Compressor::gzip::CompressArg:: "-6n";
APT::Compressor::gzip::UncompressArg "";
APT::Compressor::gzip::UncompressArg:: "-d";
APT::Compressor::xz "";
APT::Compressor::xz::Name "xz";
APT::Compressor::xz::Extension ".xz";
APT::Compressor::xz::Binary "xz";
APT::Compressor::xz::Cost "200";
APT::Compressor::xz::CompressArg "";
APT::Compressor::xz::CompressArg:: "-6";
APT::Compressor::xz::UncompressArg "";
APT::Compressor::xz::UncompressArg:: "-d";
APT::Compressor::bzip2 "";
APT::Compressor::bzip2::Name "bzip2";
APT::Compressor::bzip2::Extension ".bz2";
APT::Compressor::bzip2::Binary "bzip2";
APT::Compressor::bzip2::Cost "300";
APT::Compressor::bzip2::CompressArg "";
APT::Compressor::bzip2::CompressArg:: "-6";
APT::Compressor::bzip2::UncompressArg "";
APT::Compressor::bzip2::UncompressArg:: "-d";
APT::Compressor::lzma "";
APT::Compressor::lzma::Name "lzma";
APT::Compressor::lzma::Extension ".lzma";
APT::Compressor::lzma::Binary "xz";
APT::Compressor::lzma::Cost "400";
APT::Compressor::lzma::CompressArg "";
APT::Compressor::lzma::CompressArg:: "--format=lzma";
APT::Compressor::lzma::CompressArg:: "-6";
APT::Compressor::lzma::UncompressArg "";
APT::Compressor::lzma::UncompressArg:: "--format=lzma";
APT::Compressor::lzma::UncompressArg:: "-d";
Dir "/";
Dir::State "var/lib/apt";
Dir::State::lists "lists/";
Dir::State::cdroms "cdroms.list";
Dir::State::mirrors "mirrors/";
Dir::State::extended_states "extended_states";
Dir::State::status "/var/lib/dpkg/status";
Dir::Cache "var/cache/apt";
Dir::Cache::archives "archives/";
Dir::Cache::srcpkgcache "srcpkgcache.bin";
Dir::Cache::pkgcache "pkgcache.bin";
Dir::Etc "etc/apt";
Dir::Etc::sourcelist "sources.list";
Dir::Etc::sourceparts "sources.list.d";
Dir::Etc::main "apt.conf";
Dir::Etc::netrc "auth.conf";
Dir::Etc::parts "apt.conf.d";
Dir::Etc::preferences "preferences";
Dir::Etc::preferencesparts "preferences.d";
Dir::Etc::trusted "trusted.gpg";
Dir::Etc::trustedparts "trusted.gpg.d";
Dir::Bin "";
Dir::Bin::methods "/usr/lib/apt/methods";
Dir::Bin::solvers "";
Dir::Bin::solvers:: "/usr/lib/apt/solvers";
Dir::Bin::planners "";
Dir::Bin::planners:: "/usr/lib/apt/planners";
Dir::Bin::dpkg "/usr/bin/dpkg";
Dir::Bin::gzip "/bin/gzip";
Dir::Bin::bzip2 "/bin/bzip2";
Dir::Bin::xz "/usr/bin/xz";
Dir::Bin::lz4 "/usr/bin/lz4";
Dir::Bin::lzma "/usr/bin/xz";
Dir::Media "";
Dir::Media::MountPath "/media/cdrom";
Dir::Log "var/log/apt";
Dir::Log::Terminal "term.log";
Dir::Log::History "history.log";
Dir::Log::Planner "eipp.log.xz";
Dir::Ignore-Files-Silently "";
Dir::Ignore-Files-Silently:: "~$";
Dir::Ignore-Files-Silently:: "\.disabled$";
Dir::Ignore-Files-Silently:: "\.bak$";
Dir::Ignore-Files-Silently:: "\.dpkg-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.ucf-[a-z]+$";
Dir::Ignore-Files-Silently:: "\.save$";
Dir::Ignore-Files-Silently:: "\.orig$";
Dir::Ignore-Files-Silently:: "\.distUpgrade$";
Acquire "";
Acquire::AllowInsecureRepositories "0";
Acquire::AllowWeakRepositories "0";
Acquire::AllowDowngradeToInsecureRepositories "0";
Acquire::cdrom "";
Acquire::cdrom::mount "/media/cdrom";
Acquire::IndexTargets "";
Acquire::IndexTargets::deb "";
Acquire::IndexTargets::deb::Packages "";
Acquire::IndexTargets::deb::Packages::MetaKey
"$(COMPONENT)/binary-$(ARCHITECTURE)/Packages";
Acquire::IndexTargets::deb::Packages::flatMetaKey "Packages";
Acquire::IndexTargets::deb::Packages::ShortDescription "Packages";
Acquire::IndexTargets::deb::Packages::Description "$(RELEASE)/$(COMPONENT)
$(ARCHITECTURE) Packages";
Acquire::IndexTargets::deb::Packages::flatDescription "$(RELEASE) Packages";
Acquire::IndexTargets::deb::Packages::Optional "0";
Acquire::IndexTargets::deb::Translations "";
Acquire::IndexTargets::deb::Translations::MetaKey
"$(COMPONENT)/i18n/Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::flatMetaKey "$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::ShortDescription
"Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::Description "$(RELEASE)/$(COMPONENT)
Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb::Translations::flatDescription "$(RELEASE)
Translation-$(LANGUAGE)";
Acquire::IndexTargets::deb-src "";
Acquire::IndexTargets::deb-src::Sources "";
Acquire::IndexTargets::deb-src::Sources::MetaKey "$(COMPONENT)/source/Sources";
Acquire::IndexTargets::deb-src::Sources::flatMetaKey "Sources";
Acquire::IndexTargets::deb-src::Sources::ShortDescription "Sources";
Acquire::IndexTargets::deb-src::Sources::Description "$(RELEASE)/$(COMPONENT)
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Acquire::IndexTargets::deb-src::Sources::flatDescription "$(RELEASE) Sources";
Acquire::IndexTargets::deb-src::Sources::Optional "0";
Acquire::Changelogs "";
Acquire::Changelogs::URI "";
Acquire::Changelogs::URI::Origin "";
Acquire::Changelogs::URI::Origin::Debian
"http://metadata.ftp-master.debian.org/changelogs/@CHANGEPATH@_changelog";;
Acquire::Changelogs::URI::Origin::Tanglu
"http://metadata.tanglu.org/changelogs/@CHANGEPATH@_changelog";;
Acquire::Changelogs::URI::Origin::Ubuntu
"http://changelogs.ubuntu.com/changelogs/pool/@CHANGEPATH@/changelog";;
Acquire::Changelogs::URI::Origin::Ultimedia
"http://packages.ultimediaos.com/changelogs/pool/@CHANGEPATH@/changelog.txt";;
Acquire::Changelogs::AlwaysOnline "";
Acquire::Changelogs::AlwaysOnline::Origin "";
Acquire::Changelogs::AlwaysOnline::Origin::Ubuntu "1";
Acquire::Languages "";
Acquire::Languages:: "en";
Acquire::Languages:: "none";
Acquire::CompressionTypes "";
Acquire::CompressionTypes::xz "xz";
Acquire::CompressionTypes::bz2 "bzip2";
Acquire::CompressionTypes::lzma "lzma";
Acquire::CompressionTypes::gz "gzip";
Acquire::CompressionTypes::lz4 "lz4";
Aptitude "";
Aptitude::Get-Root-Command "sudo:/usr/bin/sudo";
DPkg "";
DPkg::Pre-Invoke "";
DPkg::Pre-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper pre-install;
fi";
DPkg::Post-Invoke "";
DPkg::Post-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper post-install;
fi";
DPkg::Post-Invoke:: "if test -x /usr/share/dhelp/scripts/index-deferred; then
/usr/share/dhelp/scripts/index-deferred; fi";
DPkg::Pre-Install-Pkgs "";
DPkg::Pre-Install-Pkgs:: "/usr/bin/apt-listchanges --apt || test $? -lt 10";
DPkg::Pre-Install-Pkgs:: "/usr/sbin/dpkg-preconfigure --apt || true";
DPkg::Tools "";
DPkg::Tools::Options "";
DPkg::Tools::Options::/usr/bin/apt-listchanges "";
DPkg::Tools::Options::/usr/bin/apt-listchanges::Version "2";
DPkg::Tools::Options::/usr/bin/apt-listchanges::InfoFD "20";
RPM "";
RPM::Pre-Invoke "";
RPM::Pre-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper pre-install;
fi";
RPM::Post-Invoke "";
RPM::Post-Invoke:: "if [ -x /usr/bin/etckeeper ]; then etckeeper post-install;
fi";
Binary "apt-config";
Binary::apt "";
Binary::apt::APT "";
Binary::apt::APT::Color "1";
Binary::apt::APT::Cache "";
Binary::apt::APT::Cache::Show "";
Binary::apt::APT::Cache::Show::Version "2";
Binary::apt::APT::Cache::AllVersions "0";
Binary::apt::APT::Cache::ShowVirtuals "1";
Binary::apt::APT::Cache::Search "";
Binary::apt::APT::Cache::Search::Version "2";
Binary::apt::APT::Cache::ShowDependencyType "1";
Binary::apt::APT::Cache::ShowVersion "1";
Binary::apt::APT::Get "";
Binary::apt::APT::Get::Upgrade-Allow-New "1";
Binary::apt::APT::Cmd "";
Binary::apt::APT::Cmd::Show-Update-Stats "1";
Binary::apt::APT::Keep-Downloaded-Packages "0";
Binary::apt::DPkg "";
Binary::apt::DPkg::Progress-Fancy "1";
Binary::apt-get "";
Binary::apt-get::Acquire "";
Binary::apt-get::Acquire::AllowInsecureRepositories "1";
CommandLine "";
CommandLine::AsString "apt-config dump";
-- (no /etc/apt/preferences present) --
-- (no /etc/apt/preferences.d/* present) --
-- /etc/apt/sources.list --
deb http://mirrors.ocf.berkeley.edu/debian stretch main contrib non-free
deb-src http://mirrors.ocf.berkeley.edu/debian stretch main contrib non-free
deb http://security.debian.org/ stretch/updates main contrib non-free
deb-src http://security.debian.org/ stretch/updates main contrib non-free
deb http://mirrors.ocf.berkeley.edu/debian stretch-updates main contrib non-free
deb-src http://mirrors.ocf.berkeley.edu/debian stretch-updates main contrib
non-free
deb http://mirrors.ocf.berkeley.edu/debian stretch-proposed-updates main
contrib non-free
deb-src http://mirrors.ocf.berkeley.edu/debian stretch-proposed-updates main
contrib non-free
-- (no /etc/apt/sources.list.d/* present) --
-- System Information:
Debian Release: 9.8
APT prefers stable-updates
APT policy: (500, 'stable-updates'), (500, 'proposed-updates'), (500,
'stable')
Architecture: amd64 (x86_64)
Kernel: Linux 4.9.0-8-amd64 (SMP w/4 CPU cores)
Locale: LANG=en_US.UTF-8, LC_CTYPE=en_US.UTF-8 (charmap=UTF-8),
LANGUAGE=en_US.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
Versions of packages apt depends on:
ii adduser 3.115
ii debian-archive-keyring 2017.5
ii gpgv 2.1.18-8~deb9u4
ii init-system-helpers 1.48
ii libapt-pkg5.0 1.4.9
ii libc6 2.24-11+deb9u4
ii libgcc1 1:6.3.0-18+deb9u1
ii libstdc++6 6.3.0-18+deb9u1
Versions of packages apt recommends:
ii gnupg 2.1.18-8~deb9u4
ii gnupg2 2.1.18-8~deb9u4
Versions of packages apt suggests:
ii apt-doc 1.4.9
ii aptitude 0.8.7-1
ii dpkg-dev 1.18.25
pn powermgmt-base <none>
ii python-apt 1.4.0~beta3
-- no debconf information
--- End Message ---
--- Begin Message ---
On Tue, 30 Apr 2019 23:07:16 +0200 Michael Biebl <[email protected]> wrote:
> On 30.04.19 20:18, Boylan, Ross wrote:
> > What is the result of having time randomization called repeatedly, with our
> > current setup?
> > If each randomization adds r seconds, r1 the first time, r2 the second,
> > etc, and t is the original time, is the result after repeated (n)
> > randomizations
> > t+rn (the good case)
> > t+r1+r2+...+rn (bad case)
> > If r is always >=, as the message about adding time suggests, the bad case
> > will probably mean the timer never goes off.
> > If r can be negative, it means that the timer will go off at a wildly
> > random time.
>
> You can check when the timer will fire:
> Use "systemctl status apt-daily.timer"
>
> I don't think the randomized time is accumulated. Or is this not the
> case for you? In that case, I would appreciate a log showing that behaviour.
Closing due to lack of further feedback.
Regards,
Michael
--
Why is it that all of the instruments seeking intelligent life in the
universe are pointed away from Earth?
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Description: OpenPGP digital signature
--- End Message ---
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