1 files changed, 29 insertions, 0 deletions
diff --git a/deps/rabbitmq_cli/lib/rabbitmq/cli/diagnostics/commands/maybe_stuck_command.ex b/deps/rabbitmq_cli/lib/rabbitmq/cli/diagnostics/commands/maybe_stuck_command.ex
new file mode 100644
index 0000000000..c241780f62
--- /dev/null
+++ b/deps/rabbitmq_cli/lib/rabbitmq/cli/diagnostics/commands/maybe_stuck_command.ex
@@ -0,0 +1,29 @@
+## This Source Code Form is subject to the terms of the Mozilla Public
+## License, v. 2.0. If a copy of the MPL was not distributed with this
+## file, You can obtain one at https://mozilla.org/MPL/2.0/.
+##
+## Copyright (c) 2007-2020 VMware, Inc. or its affiliates.  All rights reserved.
+
+defmodule RabbitMQ.CLI.Diagnostics.Commands.MaybeStuckCommand do
+  @behaviour RabbitMQ.CLI.CommandBehaviour
+  use RabbitMQ.CLI.DefaultOutput
+
+  use RabbitMQ.CLI.Core.AcceptsDefaultSwitchesAndTimeout
+  use RabbitMQ.CLI.Core.MergesNoDefaults
+  use RabbitMQ.CLI.Core.AcceptsNoPositionalArguments
+  use RabbitMQ.CLI.Core.RequiresRabbitAppRunning
+
+  def run([], %{node: node_name, timeout: timeout}) do
+    :rabbit_misc.rpc_call(node_name, :rabbit_diagnostics, :maybe_stuck, [], timeout)
+  end
+
+  def help_section(), do: :observability_and_health_checks
+
+  def description(), do: "Detects Erlang processes (\"lightweight threads\") potentially not making progress on the target node"
+
+  def usage, do: "maybe_stuck"
+
+  def banner(_, %{node: node_name}) do
+    "Asking node #{node_name} to detect potentially stuck Erlang processes..."
+  end
+end