[Bug 1874075] Re: rabbitmq-server startup timeouts differ between SysV and systemd

Wed Apr 29 12:50:33 UTC 2020

** Description changed:

  The startup timeouts were recently adjusted and synchronized between the
  SysV and systemd startup files.

  https://github.com/rabbitmq/rabbitmq-server-release/pull/129

  The new startup files should be included in this package.

  [Impact]

  After starting the RabbitMQ server process, the startup script will wait
  for the server to start by calling `rabbitmqctl wait` and will time out
  after 10 s.

  The startup time of the server depends on how quickly the Mnesia
  database becomes available and the server will time out after
  `mnesia_table_loading_retry_timeout` ms times
  `mnesia_table_loading_retry_limit` retries. By default this wait is
  30,000 ms times 10 retries, i.e. 300 s.

  The mismatch between these two timeout values might lead to the startup
  script failing prematurely while the server is still waiting for the
  Mnesia tables.

  This change introduces variable `RABBITMQ_STARTUP_TIMEOUT` and the
  `--timeout` option into the startup script. The default value for this
  timeout is set to 10 minutes (600 seconds).

  This change also updates the systemd service file to match the timeout
  values between the two service management methods.

+ [Scope]
+ 
+ Upstream patch: https://github.com/rabbitmq/rabbitmq-server-
+ release/pull/129
+ 
+ * Fix is not included in the Debian package
+ * Fix is not included in any Ubuntu series
+ 
+ * Groovy and Focal can apply the upstream patch as is
+ * Bionic and Xenial need an additional fix in the systemd service file
+   to set the `RABBITMQ_STARTUP_TIMEOUT` variable for the
+   `rabbitmq-server-wait` helper script.
+ 
  [Test Case]

  In a clustered setup with two nodes, A and B.

  1. create queue on A
  2. shut down B
  3. shut down A
  4. boot B

  The broker on B will wait for A. The systemd service will wait for 10
  seconds and then fail. Boot A and the rabbitmq-server process on B will
  complete startup.

  [Regression Potential]

  This change alters the behavior of the startup scripts when the Mnesia
  database takes long to become available. This might lead to failures
  further down the service dependency chain.

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https://bugs.launchpad.net/bugs/1874075

Title:
  rabbitmq-server startup timeouts differ between SysV and systemd

Status in rabbitmq-server package in Ubuntu:
  In Progress
Status in rabbitmq-server source package in Xenial:
  In Progress
Status in rabbitmq-server source package in Bionic:
  In Progress
Status in rabbitmq-server source package in Eoan:
  Won't Fix
Status in rabbitmq-server source package in Focal:
  In Progress
Status in rabbitmq-server source package in Groovy:
  In Progress
Status in rabbitmq-server package in Debian:
  Unknown

Bug description:
  The startup timeouts were recently adjusted and synchronized between
  the SysV and systemd startup files.

  https://github.com/rabbitmq/rabbitmq-server-release/pull/129