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## 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.Ctl.Commands.StatusCommand do
alias RabbitMQ.CLI.Core.DocGuide
alias RabbitMQ.CLI.InformationUnit, as: IU
import RabbitMQ.CLI.Core.{Alarms, ANSI, DataCoercion, Listeners, Memory, Platform}
@behaviour RabbitMQ.CLI.CommandBehaviour
@default_timeout 60_000
def scopes(), do: [:ctl, :diagnostics]
def switches(), do: [unit: :string, timeout: :integer]
def aliases(), do: [t: :timeout]
def merge_defaults(args, opts) do
timeout =
case opts[:timeout] do
nil -> @default_timeout
:infinity -> @default_timeout
other -> other
end
{args, Map.merge(%{unit: "gb", timeout: timeout}, opts)}
end
def validate(args, _) when length(args) > 0 do
{:validation_failure, :too_many_args}
end
def validate(_, %{unit: unit}) do
case IU.known_unit?(unit) do
true ->
:ok
false ->
{:validation_failure, "unit '#{unit}' is not supported. Please use one of: bytes, mb, gb"}
end
end
def validate(_, _), do: :ok
use RabbitMQ.CLI.Core.RequiresRabbitAppRunning
def run([], %{node: node_name, timeout: timeout}) do
:rabbit_misc.rpc_call(node_name, :rabbit, :status, [], timeout)
end
def output({:error, :timeout}, %{node: node_name}) do
{:error, RabbitMQ.CLI.Core.ExitCodes.exit_software(),
"Error: timed out while waiting for a response from #{node_name}."}
end
def output(result, %{formatter: "erlang"}) do
{:ok, result}
end
def output(result, %{formatter: "json"}) when is_list(result) do
m = result_map(result) |> Map.update(:alarms, [], fn xs -> alarm_maps(xs) end)
{:ok, m}
end
def output(result, %{node: node_name, unit: unit}) when is_list(result) do
m = result_map(result)
product_name_section = case m do
%{:product_name => product_name} when product_name != "" ->
["Product name: #{product_name}"]
_ ->
[]
end
product_version_section = case m do
%{:product_version => product_version} when product_version != "" ->
["Product version: #{product_version}"]
_ ->
[]
end
runtime_section = [
"#{bright("Runtime")}\n",
"OS PID: #{m[:pid]}",
"OS: #{m[:os]}",
# TODO: format
"Uptime (seconds): #{m[:uptime]}",
"Is under maintenance?: #{m[:is_under_maintenance]}"
] ++
product_name_section ++
product_version_section ++
[
"RabbitMQ version: #{m[:rabbitmq_version]}",
"Node name: #{node_name}",
"Erlang configuration: #{m[:erlang_version]}",
"Erlang processes: #{m[:processes][:used]} used, #{m[:processes][:limit]} limit",
"Scheduler run queue: #{m[:run_queue]}",
"Cluster heartbeat timeout (net_ticktime): #{m[:net_ticktime]}"
]
plugin_section = [
"\n#{bright("Plugins")}\n",
"Enabled plugin file: #{m[:enabled_plugin_file]}",
"Enabled plugins:\n"
] ++ Enum.map(m[:active_plugins], fn pl -> " * #{pl}" end)
data_directory_section = [
"\n#{bright("Data directory")}\n",
"Node data directory: #{m[:data_directory]}",
"Raft data directory: #{m[:raft_data_directory]}"
]
config_section = [
"\n#{bright("Config files")}\n"
] ++ Enum.map(m[:config_files], fn path -> " * #{path}" end)
log_section = [
"\n#{bright("Log file(s)")}\n"
] ++ Enum.map(m[:log_files], fn path -> " * #{path}" end)
alarms_section = [
"\n#{bright("Alarms")}\n",
] ++ case m[:alarms] do
[] -> ["(none)"]
xs -> alarm_lines(xs, node_name)
end
breakdown = compute_relative_values(m[:memory])
memory_calculation_strategy = to_atom(m[:vm_memory_calculation_strategy])
total_memory = get_in(m[:memory], [:total, memory_calculation_strategy])
readable_watermark_setting = case m[:vm_memory_high_watermark_setting] do
%{:relative => val} -> "#{val} of available memory"
# absolute value
%{:absolute => val} -> "#{IU.convert(val, unit)} #{unit}"
end
memory_section = [
"\n#{bright("Memory")}\n",
"Total memory used: #{IU.convert(total_memory, unit)} #{unit}",
"Calculation strategy: #{memory_calculation_strategy}",
"Memory high watermark setting: #{readable_watermark_setting}, computed to: #{IU.convert(m[:vm_memory_high_watermark_limit], unit)} #{unit}\n"
] ++ Enum.map(breakdown, fn({category, val}) -> "#{category}: #{IU.convert(val[:bytes], unit)} #{unit} (#{val[:percentage]} %)" end)
file_descriptors = [
"\n#{bright("File Descriptors")}\n",
"Total: #{m[:file_descriptors][:total_used]}, limit: #{m[:file_descriptors][:total_limit]}",
"Sockets: #{m[:file_descriptors][:sockets_used]}, limit: #{m[:file_descriptors][:sockets_limit]}"
]
disk_space_section = [
"\n#{bright("Free Disk Space")}\n",
"Low free disk space watermark: #{IU.convert(m[:disk_free_limit], unit)} #{unit}",
"Free disk space: #{IU.convert(m[:disk_free], unit)} #{unit}"
]
totals_section = [
"\n#{bright("Totals")}\n",
"Connection count: #{m[:totals][:connection_count]}",
"Queue count: #{m[:totals][:queue_count]}",
"Virtual host count: #{m[:totals][:virtual_host_count]}"
]
listeners_section = [
"\n#{bright("Listeners")}\n",
] ++ case m[:listeners] do
[] -> ["(none)"]
xs -> listener_lines(xs)
end
lines = runtime_section ++ plugin_section ++ data_directory_section ++
config_section ++ log_section ++ alarms_section ++ memory_section ++
file_descriptors ++ disk_space_section ++ totals_section ++ listeners_section
{:ok, Enum.join(lines, line_separator())}
end
use RabbitMQ.CLI.DefaultOutput
def formatter(), do: RabbitMQ.CLI.Formatters.String
def usage, do: "status [--unit <unit>]"
def usage_additional() do
[
["--unit <bytes | mb | gb>", "byte multiple (bytes, megabytes, gigabytes) to use"],
["--formatter <json | erlang>", "alternative formatter (JSON, Erlang terms)"]
]
end
def usage_doc_guides() do
[
DocGuide.monitoring()
]
end
def help_section(), do: :observability_and_health_checks
def description(), do: "Displays status of a node"
def banner(_, %{node: node_name}), do: "Status of node #{node_name} ..."
#
# Implementation
#
defp result_map(result) do
%{
os: os_name(Keyword.get(result, :os)),
pid: Keyword.get(result, :pid),
product_name: Keyword.get(result, :product_name) |> to_string,
product_version: Keyword.get(result, :product_version) |> to_string,
rabbitmq_version: Keyword.get(result, :rabbitmq_version) |> to_string,
erlang_version: Keyword.get(result, :erlang_version) |> to_string |> String.trim_trailing,
uptime: Keyword.get(result, :uptime),
is_under_maintenance: Keyword.get(result, :is_under_maintenance, false),
processes: Enum.into(Keyword.get(result, :processes), %{}),
run_queue: Keyword.get(result, :run_queue),
net_ticktime: net_ticktime(result),
vm_memory_calculation_strategy: Keyword.get(result, :vm_memory_calculation_strategy),
vm_memory_high_watermark_setting: Keyword.get(result, :vm_memory_high_watermark) |> formatted_watermark,
vm_memory_high_watermark_limit: Keyword.get(result, :vm_memory_limit),
disk_free_limit: Keyword.get(result, :disk_free_limit),
disk_free: Keyword.get(result, :disk_free),
file_descriptors: Enum.into(Keyword.get(result, :file_descriptors), %{}),
alarms: Keyword.get(result, :alarms),
listeners: listener_maps(Keyword.get(result, :listeners, [])),
memory: Keyword.get(result, :memory) |> Enum.into(%{}),
data_directory: Keyword.get(result, :data_directory) |> to_string,
raft_data_directory: Keyword.get(result, :raft_data_directory) |> to_string,
config_files: Keyword.get(result, :config_files) |> Enum.map(&to_string/1),
log_files: Keyword.get(result, :log_files) |> Enum.map(&to_string/1),
active_plugins: Keyword.get(result, :active_plugins) |> Enum.map(&to_string/1),
enabled_plugin_file: Keyword.get(result, :enabled_plugin_file) |> to_string,
totals: Keyword.get(result, :totals)
}
end
defp net_ticktime(result) do
case Keyword.get(result, :kernel) do
{:net_ticktime, n} -> n
n when is_integer(n) -> n
_ -> :undefined
end
end
end
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