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[Launchpad Bug Tracker <1890846@xxxxxxxxxxxxxxxxxx>]

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 <eric.desrochers@xxxxxxxxxxxxx>  Wed, 30 Sep 2020
14:29:50 -0400

** Changed in: sosreport (Ubuntu Focal)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1890846

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

Status in sosreport package in Ubuntu:
  Fix Released
Status in sosreport source package in Xenial:
  New
Status in sosreport source package in Bionic:
  In Progress
Status in sosreport source package in Focal:
  Fix Released
Status in sosreport source package in Groovy:
  Fix Released

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.

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