[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2018-03-21 Thread Launchpad Bug Tracker 
This bug was fixed in the package systemd - 229-4ubuntu21.2

---
systemd (229-4ubuntu21.2) xenial; urgency=medium

  [ Dimitri John Ledkov ]
  * udev: Mark ndb devices as inactive until connected. (LP: #696435)
  * networkd: in dhcp, change UseMTU default to true, to accept DHCP provided 
MTU by default.
(LP: #1717471)
  * sysctl: apply parameters in-order, instead of randomly. (LP: #1718444)
  * networkd: apply promote_secondaries, to make DHCP lease changes work.
(LP: #1721223)
  * shutdown: sync filesystems, before going into a killing spree.
(LP: #1722481)
  * sysctl: do not fail, when cannot apply sysctl changes due to read-only 
sysfs in containers.
(LP: #1734409)
  * networkd,wait-online: add RequiredForOnline to mark mandatory/optional 
links for boot.
(LP: #1737570)

  [ David Glasser ]
  * journald: don't reduce BurstRateLimit on low disk space (LP: #1732803)

 -- Dimitri John Ledkov   Wed, 21 Feb 2018 13:46:37
+

** Changed in: systemd (Ubuntu Xenial)
   Status: Fix Committed => Fix Released

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Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Fix Released

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2018-03-20 Thread Dimitri John Ledkov 
Journal is still operating correctly. It is hard to trigger the
particular edge condition in question, but overall journal operation has
not regressed.

** Tags removed: verification-needed verification-needed-xenial
** Tags added: verification-done verification-done-xenial

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https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Fix Committed

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2018-03-08 Thread Brian Murray 
Hello David, or anyone else affected,

Accepted systemd into xenial-proposed. The package will build now and be
available at
https://launchpad.net/ubuntu/+source/systemd/229-4ubuntu21.2 in a few
hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested and change the tag from
verification-needed-xenial to verification-done-xenial. If it does not
fix the bug for you, please add a comment stating that, and change the
tag to verification-failed-xenial. In either case, without details of
your testing we will not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance!

** Changed in: systemd (Ubuntu Xenial)
   Status: In Progress => Fix Committed

** Tags added: verification-needed verification-needed-xenial

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https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  Fix Committed

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2018-03-04 Thread Mathew Hodson 
** Changed in: systemd (Ubuntu)
   Importance: Undecided => Medium

** Changed in: systemd (Ubuntu Xenial)
   Importance: Undecided => Medium

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  In Progress

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2018-02-20 Thread Dimitri John Ledkov 
** Changed in: systemd (Ubuntu Xenial)
   Status: New => In Progress

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  In Progress

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2017-11-21 Thread David Glasser 
I got some advice on mistakes in my update to changelog. This version
should be better.

** Patch added: "Second version with fixed changelog entries"
   
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+attachment/5012529/+files/Fix-journald-rate-limit-with-low-disk-space.debdiff

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Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  New

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2017-11-21 Thread Evan Broder 
** Also affects: systemd (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Changed in: systemd (Ubuntu)
   Status: New => Fix Released

-- 
You received this bug notification because you are a member of Ubuntu
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https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  Fix Released
Status in systemd source package in Xenial:
  New

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2017-11-21 Thread David Glasser 
This is my first attempt at a debdiff and an SRU. I'd love to know if
I've filed it properly!

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https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  New

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2017-11-16 Thread David Glasser 
Correction: I believe this occurs when the amount of remaining space
until journald hits its allocated limit is between 1 and 16MB, not when
the entire filesystem has that little space left.  (This makes it much
more likely to occur: any system that is using logs enough for them to
be rotated due to space will hit this issue whenever it's near rotation
time.)

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  New

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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[Touch-packages] [Bug 1732803] Re: systemd-journald RateLimitBurst is sometimes divided by 4

2017-11-16 Thread David Glasser 
** Patch added: "debdiff backporting fix from upstream"
   
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+attachment/5010237/+files/Fix-journald-rate-limit-with-low-disk-space.debdiff

-- 
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to systemd in Ubuntu.
https://bugs.launchpad.net/bugs/1732803

Title:
  systemd-journald RateLimitBurst is sometimes divided by 4

Status in systemd package in Ubuntu:
  New

Bug description:
  [Impact]

  systemd-journald allows you to configure a per-service journal rate limit in 
/etc/systemd/journald.conf via the RateLimitBurst parameter. systemd-journald 
has
  code that effectively increases the rate limit when there is a lot of disk 
space available.
  However, all versions of systemd before v232 had a bug which would shrink the 
rate limit
  when there is between 1 and 16 MB available on disk.

  If you designed a service to log at a rate R and configured
  RateLimitBurst to a little above R, this can lead to loss of logs when
  free disk is between 1 and 16 MB, as your service will be surprisingly
  rate limited at lower than your configured rate.

  This bug was fixed upstream in https://github.com/systemd/systemd/pull/4218
  It is a straightforward one-line change that makes the code match the 
comments under it.

  [Test Case]

  Run a systemd service that prints lots of logs (eg `yes`). Fill your
  disk to have only 1MB full. Use journalctl to see how many log lines
  are between "Suppressed" lines. Note that it is 1/4 of what you'd
  expect.  (Admittedly this test case is a little hard to achieve since
  journald itself is writing to disk. I did run into this in
  production.)

  [Regression Potential]

  This does mean that journald can write slightly more to disk than it
  did before when free disk is between 1 and 16MB, but given that the
  full burst rate is available below 1MB it seems unlikely that any
  systems are depending on this change in order to not break.

  The fix has been in systemd since v232 (shipped in Zesty). I would
  like to see it in Xenial.

  
  [Other Info]
   
  I am seeing this on:
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 1 ~/systemd-229$ lsb_release -rd
  Description:  Ubuntu 16.04.3 LTS
  Release:  16.04
  ubuntu@ip-10-0-2-135[i-0b196ce4b8dc3fc55] 0 ~/systemd-229$ apt-cache policy 
systemd
  systemd:
Installed: 229-4ubuntu19
Candidate: 229-4ubuntu21
Version table:
   229-4ubuntu21 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu 
xenial-updates/main amd64 Packages
   *** 229-4ubuntu19 100
  100 /var/lib/dpkg/status
   229-4ubuntu10 500
  500 http://security.ubuntu.com/ubuntu xenial-security/main amd64 
Packages
   229-4ubuntu4 500
  500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu xenial/main amd64 
Packages

  This bug seems to date back to the original implementation of rate
  limiting (https://github.com/systemd/systemd/commit/6e409ce10d).

To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1732803/+subscriptions

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