Ubuntu
sosreport package

[plugin][rabbitmq] add output of: rabbitmqctl eval 'rabbit_diagnostics:maybe_stuck().'

  1. Xenial (16.04)
  2. Bug #1890846
Bug #1890846 reported by Felipe Reyes
12
This bug affects 1 person
Affects Status Importance Assigned to Milestone
sosreport (Ubuntu)
Fix Released
Medium
Nicolas Bock
Xenial
New
Undecided
Nicolas Bock
Bionic
In Progress
Medium
Nicolas Bock
Focal
Fix Released
Medium
Nicolas Bock
Groovy
Fix Released
Medium
Nicolas Bock

Bug Description

[Impact]

We have seen customer cases where the output of
`rabbit_diagnostics:maybe_stuck()` provided helpful information in
debugging the root cause. Automatically collecting this information
will potentially expedite the debugging of rabbitmq-server related
issues.

[Test Case]

Run the rabbitmq plugin on a machine running a rabbitmq broker. On a
fresh Focal install, the output will look like the following:

    2020-09-18 12:55:47 There are 257 processes.
    2020-09-18 12:55:47 Investigated 1 processes this round, 5000ms to go.
    2020-09-18 12:55:47 Investigated 1 processes this round, 4500ms to go.
    2020-09-18 12:55:48 Investigated 1 processes this round, 4000ms to go.
    2020-09-18 12:55:48 Investigated 1 processes this round, 3500ms to go.
    2020-09-18 12:55:49 Investigated 1 processes this round, 3000ms to go.
    2020-09-18 12:55:49 Investigated 1 processes this round, 2500ms to go.
    2020-09-18 12:55:50 Investigated 1 processes this round, 2000ms to go.
    2020-09-18 12:55:50 Investigated 1 processes this round, 1500ms to go.
    2020-09-18 12:55:51 Investigated 1 processes this round, 1000ms to go.
    2020-09-18 12:55:51 Investigated 1 processes this round, 500ms to go.
    2020-09-18 12:55:52 Found 1 suspicious processes.
    2020-09-18 12:55:52 [{pid,<10643.1.0>},
                         {registered_name,erts_code_purger},
                         {current_stacktrace,
                             [{erts_code_purger,wait_for_request,0,[]}]},
                         {initial_call,{erts_code_purger,start,0}},
                         {message_queue_len,0},
                         {links,[]},
                         {monitors,[]},
                         {monitored_by,[]},
                         {heap_size,1598}]
    ok

In case some Erlang runtime threads are stuck they will show in the
above list.

[Regression Potential]

This function was introduced with rabbitmq-server-3.3.4 which covers
Xenial upwards. The command would not work on earlier versions of
rabbitmq-server.

[Other Info]

* Upstream commits:
https://github.com/sosreport/sos/commit/af5891786ff8c4e33c341fe9cca690fc77ac768f
https://github.com/sosreport/sos/commit/5b5ebe2d2c9d579931c8d6a78101e16d6abfa527

[Original Description]

Extend the rabbitmq plugin to include the output of:

    sudo rabbitmqctl eval 'rabbit_diagnostics:maybe_stuck().'

This information is useful to get insights of the state of the erlang
virtual machine.

See original description
Felipe Reyes (freyes)
tags: added: seg
Nicolas Bock (nicolasbock)
Changed in sosreport (Ubuntu):
assignee: nobody → Nicolas Bock (nicolasbock)
Revision history for this message
Nicolas Bock (nicolasbock) wrote :

Pushed: https://github.com/sosreport/sos/pull/2189

Eric Desrochers (slashd)
description: updated
description: updated
Changed in sosreport (Ubuntu Focal):
assignee: nobody → Nicolas Bock (nicolasbock)
Changed in sosreport (Ubuntu Bionic):
assignee: nobody → Nicolas Bock (nicolasbock)
Changed in sosreport (Ubuntu Xenial):
assignee: nobody → Nicolas Bock (nicolasbock)
Eric Desrochers (slashd)
Changed in sosreport (Ubuntu Groovy):
status: New → In Progress
importance: Undecided → Medium
Eric Desrochers (slashd)
tags: added: sts
summary: - add output of: rabbitmqctl eval 'rabbit_diagnostics:maybe_stuck().'
+ [plugin][rabbitmq] add output of: rabbitmqctl eval
+ 'rabbit_diagnostics:maybe_stuck().'
Eric Desrochers (slashd)
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package sosreport - 4.0-1ubuntu1

---------------
sosreport (4.0-1ubuntu1) groovy; urgency=medium

  [Eric Desrochers]
  * d/p/0003-sosclean-fix-handling-of-filepath-with-archive-name.patch:
    - Fixes the splitting of filepaths within the archive,
      when the archive name is included in the filename
      inside the archive. (LP: #1896222)

  * d/p/0004-sosclean-fix-tarball-skipping-regex.patch:
    - Fix tarball skipping regex

  [Dan Hill]
  * d/p/0005-ceph-collect-balancer-and-pg-autoscale-status.patch:
    - Collect balancer and pg-autoscale status (LP: #1893109)

  [Nicolas Bock]
  * d/p/0006-rabbitmq-add-info-on-maybe-stuck-processes.patch:
    - Add information on maybe_stuck() processes for RMQ. (LP: #1890846)

 -- Eric Desrochers <email address hidden> Fri, 18 Sep 2020 09:23:04 -0400

Changed in sosreport (Ubuntu Groovy):
status: In Progress → Fix Released
Revision history for this message
Eric Desrochers (slashd) wrote :

@nicolas,

Could you please file the SRU template before we can proceed with the SRU ?

Nicolas Bock (nicolasbock)
description: updated
Revision history for this message
Eric Desrochers (slashd) wrote :

After a discussion between Nicolas and I, a new commit has been proposed to sosreport upstream:
https://github.com/sosreport/sos/pull/2239/commits/5b5ebe2d2c9d579931c8d6a78101e16d6abfa527

Revision history for this message
Eric Desrochers (slashd) wrote :

I'm pushing the commit into Groovy as we speak.

Changed in sosreport (Ubuntu Focal):
status: New → In Progress
Revision history for this message
Eric Desrochers (slashd) wrote :

It is now found in groovy-releases:

---
sosreport (4.0-1ubuntu2) groovy; urgency=medium

  [Nicolas Bock]
  * d/p/0007-rabbitmq-add-10sec-timeout-to-call-to-maybestuck.patch:
    - Add 10 second timeout to call to `maybe_stuck()`.
---

description: updated
Eric Desrochers (slashd)
Changed in sosreport (Ubuntu Focal):
importance: Undecided → Medium
Revision history for this message
Łukasz Zemczak (sil2100) wrote : Please test proposed package

Hello Felipe, or anyone else affected,

Accepted sosreport into focal-proposed. The package will build now and be available at https://launchpad.net/ubuntu/+source/sosreport/4.0-1~ubuntu0.20.04.2 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, what testing has been performed on the package and change the tag from verification-needed-focal to verification-done-focal. If it does not fix the bug for you, please add a comment stating that, and change the tag to verification-failed-focal. 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 for helping!

N.B. The updated package will be released to -updates after the bug(s) fixed by this package have been verified and the package has been in -proposed for a minimum of 7 days.

Changed in sosreport (Ubuntu Focal):
status: In Progress → Fix Committed
tags: added: verification-needed verification-needed-focal
Eric Desrochers (slashd)
Changed in sosreport (Ubuntu Bionic):
status: New → In Progress
Eric Desrochers (slashd)
Changed in sosreport (Ubuntu Bionic):
importance: Undecided → Medium
Revision history for this message
Nicolas Bock (nicolasbock) wrote :

Verified on Focal

Revision history for this message
Nicolas Bock (nicolasbock) wrote :

- installed sosreport-4.0-1~ubuntu0.20.04.2 in daily focal container
- installed rabbitmq-server-3.8.2-0ubuntu1.1
- ran sosreport --only-plugins rabbitmq
- verfied that sos_commands/rabbitmq/rabbitmqctl│All snaps up to date.
_eval_rabbit_diagnostics_maybe_stuck exists and contains correct information

tags: added: verification-done-focal
removed: verification-needed-focal
Revision history for this message
Launchpad Janitor (janitor) wrote :

This bug was fixed in the package sosreport - 4.0-1~ubuntu0.20.04.2

---------------
sosreport (4.0-1~ubuntu0.20.04.2) focal; urgency=medium

  [Eric Desrochers]
  * d/p/0003-sosclean-fix-handling-of-filepath-with-archive-name.patch:
    - Fixes the splitting of filepaths within the archive,
      when the archive name is included in the filename
      inside the archive. (LP: #1896222)

  * d/p/0004-sosclean-fix-tarball-skipping-regex.patch:
    - Fix tarball skipping regex

  [Dan Hill]
  * d/p/0005-ceph-collect-balancer-and-pg-autoscale-status.patch:
    - Collect balancer and pg-autoscale status (LP: #1893109)

  [Nicolas Bock]
  * d/p/0006-rabbitmq-add-info-on-maybe-stuck-processes.patch:
    - Add information on maybe_stuck() processes for RMQ. (LP: #1890846)

  * d/p/0007-rabbitmq-add-10sec-timeout-to-call-to-maybestuck.patch:
    - Add 10 second timeout to call to `maybe_stuck()`.

 -- Eric Desrochers <email address hidden> Wed, 30 Sep 2020 14:29:50 -0400

Changed in sosreport (Ubuntu Focal):
status: Fix Committed → Fix Released
Revision history for this message
Łukasz Zemczak (sil2100) wrote : Update Released

The verification of the Stable Release Update for sosreport has completed successfully and the package is now being released to -updates. Subsequently, the Ubuntu Stable Release Updates Team is being unsubscribed and will not receive messages about this bug report. In the event that you encounter a regression using the package from -updates please report a new bug using ubuntu-bug and tag the bug report regression-update so we can easily find any regressions.

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