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|
require 'spec_helper'
describe "Cleanup Memory" do
old_cld_trap = nil
before do
old_cld_trap = Signal.trap("CLD", "IGNORE")
end
after do
Signal.trap("CLD", old_cld_trap)
end
shared_examples_for "executing on normal conditions" do
it "should cleanup memory used for published message", :cleanup => true do
channel = 'ch_test_message_cleanup'
body = 'message to create a channel'
expected_time_for_clear = 25
nginx_run_server(config.merge(:max_messages_stored_per_channel => 100), :timeout => test_timeout) do |conf|
stored_messages_setp_1 = 0
published_messages_setp_1 = 0
published_messages_setp_2 = 0
EventMachine.run do
# ensure channel will not be cleaned up
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers
publish_messages_until_fill_the_memory(channel, body) do |status, content|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
stored_messages_setp_1 = result["stored_messages"].to_i
published_messages_setp_1 = result["published_messages"].to_i
messages_in_trash = result["messages_in_trash"].to_i
expect(stored_messages_setp_1).to eql(conf.max_messages_stored_per_channel)
expect(published_messages_setp_1).to be > (conf.max_messages_stored_per_channel)
expect(stored_messages_setp_1).not_to eql(0)
expect(published_messages_setp_1).to eql(stored_messages_setp_1 + messages_in_trash)
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true}) do
execute_changes_on_environment(conf) do
# connect a subscriber on new worker
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers
publish_messages_until_fill_the_memory(channel, body) do |status2, content2|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
published_messages_setp_2 = JSON.parse(pub_2.response)["published_messages"].to_i
fail("Don't publish more messages") if published_messages_setp_1 == published_messages_setp_2
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status3, content3|
pub_4 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_4.callback do
expect(pub_4).to be_http_status(200).with_body
result = JSON.parse(pub_4.response)
expect(result["stored_messages"].to_i).to eql(stored_messages_setp_1)
expect(result["published_messages"].to_i - published_messages_setp_2).to eql(published_messages_setp_1)
EventMachine.stop
end
end
end
end
end
end
end
end
end
end
end
end
it "should discard old messages", :cleanup => true do
channel = 'ch_test_discard_old_messages'
body = 'message to create a channel'
messages_to_publish = 10
count = 0
stored_messages_setp_1 = 0
nginx_run_server(config, :timeout => test_timeout) do |conf|
EventMachine.run do
fill_memory_timer = EventMachine::PeriodicTimer.new(messages_to_publish / 12.to_f) do # publish messages before cleanup timer be executed
if (count < messages_to_publish)
publish_message_inline(channel, headers, body)
elsif (count == messages_to_publish)
pub_1 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_1.callback do
fill_memory_timer.cancel
expect(pub_1).to be_http_status(200).with_body
stored_messages_setp_1 = JSON.parse(pub_1.response)["stored_messages"].to_i
expect(stored_messages_setp_1).to eql(messages_to_publish)
execute_changes_on_environment(conf) do
EM.add_timer(3) do # wait cleanup timer to be executed one time
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
stored_messages_setp_2 = JSON.parse(pub_2.response)["stored_messages"].to_i
expect(stored_messages_setp_2).to be <= stored_messages_setp_1
expect(stored_messages_setp_2).to be > 0
EventMachine.stop
end
end
end
end
end
count += 1
end
end
end
end
it "should cleanup message memory without max messages stored per channel", :cleanup => true do
channel = 'ch_test_message_cleanup_without_max_messages_stored_per_channel'
body = 'message to create a channel'
expected_time_for_clear = 25
nginx_run_server(config, :timeout => test_timeout) do |conf|
stored_messages_setp_1 = 0
published_messages_setp_1 = 0
published_messages_setp_2 = 0
EventMachine.run do
# ensure channel will not be cleaned up
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers
publish_messages_until_fill_the_memory(channel, body) do |status, content|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
stored_messages_setp_1 = result["stored_messages"].to_i
published_messages_setp_1 = result["published_messages"].to_i
fail("Limited the number of stored messages") if stored_messages_setp_1 <= 100
fail("Don't create any message") if stored_messages_setp_1 == 0
execute_changes_on_environment(conf) do
# connect a subscriber on new worker
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status2, content2|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
published_messages_setp_2 = JSON.parse(pub_2.response)["published_messages"].to_i
fail("Don't publish more messages") if published_messages_setp_1 == published_messages_setp_2
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status3, content3|
pub_4 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_4.callback do
expect(pub_4).to be_http_status(200).with_body
result = JSON.parse(pub_4.response)
expect(result["stored_messages"].to_i).to eql(stored_messages_setp_1)
expect(result["published_messages"].to_i - published_messages_setp_2).to eql(published_messages_setp_1)
EventMachine.stop
end
end
end
end
end
end
end
end
end
end
end
end
it "should cleanup memory used for create channels", :cleanup => true do
channel = 'ch_test_channel_cleanup_%d'
body = 'message to create a channel'
nginx_run_server(config.merge(:message_ttl => '2s'), :timeout => test_timeout) do |conf|
channels_setp_1 = 0
channels_setp_2 = 0
published_messages_setp_1 = 0
expected_time_for_clear = 45
EventMachine.run do
publish_messages_until_fill_the_memory(channel, body) do |status, content|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
channels_setp_1 = JSON.parse(pub_2.response)["channels"].to_i
fail("Don't create any channel") if channels_setp_1 == 0
execute_changes_on_environment(conf) do
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true, :check_channels => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status2, content2|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
fail("Don't create more channel") if published_messages_setp_1 == JSON.parse(pub_2.response)["published_messages"].to_i
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true, :check_channels => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status3, content3|
pub_4 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_4.callback do
expect(pub_4).to be_http_status(200).with_body
channels_setp_2 = JSON.parse(pub_4.response)["channels"].to_i
expect(channels_setp_2).to eql(channels_setp_1)
EventMachine.stop
end
end
end
end
end
end
end
end
end
end
end
end
it "should cleanup memory used for publish messages with store 'off' and with subscriber", :cleanup => true do
channel = 'ch_test_message_cleanup_with_store_off_with_subscriber'
body = 'message to create a channel'
expected_time_for_clear = 15
nginx_run_server(config.merge(:store_messages => 'off'), :timeout => test_timeout) do |conf|
published_messages_setp_1 = 0
published_messages_setp_2 = 0
EventMachine.run do
# ensure channel will not be cleaned up
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers
publish_messages_until_fill_the_memory(channel, body) do |status, content|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
published_messages_setp_1 = result["published_messages"].to_i
execute_changes_on_environment(conf) do
# connect a subscriber on new worker
sub_1 = EventMachine::HttpRequest.new(nginx_address + '/sub/' + channel.to_s).get :head => headers
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status2, content2|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
published_messages_setp_2 = JSON.parse(pub_2.response)["published_messages"].to_i
expect(published_messages_setp_2).not_to eql(published_messages_setp_1)
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status3, content3|
pub_4 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=' + channel.to_s).get :head => headers
pub_4.callback do
expect(pub_4).to be_http_status(200).with_body
result = JSON.parse(pub_4.response)
expect(result["published_messages"].to_i - published_messages_setp_2).to eql(published_messages_setp_1)
EventMachine.stop
end
end
end
end
end
end
end
end
end
end
end
end
it "should cleanup memory used for publish messages with store 'off' and without subscriber", :cleanup => true do
channel = 'ch_test_message_cleanup_with_store_off_without_subscriber %d'
body = 'message to create a channel'
expected_time_for_clear = 45
nginx_run_server(config.merge(:store_messages => 'off'), :timeout => test_timeout) do |conf|
published_messages_setp_1 = 0
published_messages_setp_2 = 0
EventMachine.run do
publish_messages_until_fill_the_memory(channel, body) do |status, content|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
published_messages_setp_1 = result["published_messages"].to_i
execute_changes_on_environment(conf) do
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true, :check_channels => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status2, content2|
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
published_messages_setp_2 = JSON.parse(pub_2.response)["published_messages"].to_i
fail("Don't create more channel") if published_messages_setp_1 == published_messages_setp_2
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true, :check_channels => true}) do
publish_messages_until_fill_the_memory(channel, body) do |status3, content3|
pub_4 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_4.callback do
expect(pub_4).to be_http_status(200).with_body
result = JSON.parse(pub_4.response)
expect(result["published_messages"].to_i - published_messages_setp_2).to eql(published_messages_setp_1)
EventMachine.stop
end
end
end
end
end
end
end
end
end
end
end
end
it "should cleanup memory used after delete created channels", :cleanup => true do
channel = 'ch_test_channel_cleanup_after_delete'
body = 'message to create a channel'
expected_time_for_clear = 15
nginx_run_server(config.merge(:publisher_mode => 'admin'), :timeout => test_timeout) do |conf|
published_messages_setp_1 = 0
EventMachine.run do
pub_placeholder = EventMachine::HttpRequest.new(nginx_address + '/pub?id=pub_placeholder').post :body => body * 200, :head => headers
pub_placeholder.callback do
EM.add_timer(3) do
i = 0
fill_memory_timer = EventMachine::PeriodicTimer.new(0.001) do
pub_1 = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channel.to_s + i.to_s).post :body => body, :head => headers
pub_1.callback do
if pub_1.response_header.status == 500
fill_memory_timer.cancel
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats?id=ALL').get :head => headers
pub_2.callback do
delete_channels(JSON.parse(pub_2.response)["infos"].map {|info| info["channel"] }, headers) do
start = Time.now
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
published_messages_setp_1 = result["published_messages"].to_i
fail("Don't create any message") if published_messages_setp_1 == 0
fail("Some channel left") if result["channels"].to_i != 0
fail("Don't deleted any channel") if result["channels_in_delete"].to_i == 0
fail("Already sent channels to trash") if result["channels_in_trash"].to_i != 0
execute_changes_on_environment(conf) do
wait_until_trash_is_empty(start, expected_time_for_clear, {:check_stored_messages => true, :check_channels => true}) do
i = 0
pub_placeholder = EventMachine::HttpRequest.new(nginx_address + '/pub?id=pub_placeholder').post :body => body * 200, :head => headers
fill_memory_timer = EventMachine::PeriodicTimer.new(0.001) do
pub_1 = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channel.to_s + i.to_s).post :body => body, :head => headers
pub_1.callback do
if pub_1.response_header.status == 500
fill_memory_timer.cancel
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
expect(result["published_messages"].to_i / 2).to eql(published_messages_setp_1)
EventMachine.stop
end
end
end
i += 1
end
end
end
end
end
end
end
end
i += 1
end
end
end
end
end
end
it "should cleanup memory used after delete created channels with same id", :cleanup => true do
channel = 'ch_test_channel_cleanup_after_delete_same_id'
body = 'message to create a channel'
expected_time_for_clear = 15
nginx_run_server(config.merge(:publisher_mode => 'admin'), :timeout => test_timeout) do |conf|
published_messages_setp_1 = 0
EventMachine.run do
create_and_delete_channel(channel, body, headers) do
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
published_messages_setp_1 = result["published_messages"].to_i
fail("Don't create any message") if published_messages_setp_1 == 0
fail("Don't deleted any channel") if result["channels_in_delete"].to_i == 0
fail("Already sent channels to trash") if result["channels_in_trash"].to_i != 0
execute_changes_on_environment(conf) do
wait_until_trash_is_empty(Time.now, expected_time_for_clear, {:check_stored_messages => true, :check_channels => true}) do
create_and_delete_channel(channel, body, headers) do
pub_2 = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
pub_2.callback do
expect(pub_2).to be_http_status(200).with_body
result = JSON.parse(pub_2.response)
expect(result["published_messages"].to_i / 2).to eql(published_messages_setp_1)
EventMachine.stop
end
end
end
end
end
end
end
end
end
end
def create_and_delete_channel(channel, body, headers, &block)
pub_1 = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channel.to_s).post :body => body, :head => headers
pub_1.callback do
pub = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channel.to_s).delete :head => headers
pub.callback do
if pub_1.response_header.status == 200 && pub.response_header.status == 200
EM.add_timer(0.001) { create_and_delete_channel(channel, body, headers, &block) }
else
delete_channels([channel.to_s], headers) do
block.call unless block.nil?
end
end
end
end
end
def delete_channels(channels, headers, &block)
if channels.length == 0
block.call
return
end
pub = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channels[0]).delete :head => headers
pub.callback do
if pub.response_header.status == 500
EM.add_timer(1) { delete_channels(channels, headers, &block) }
else
channels.shift
EM.add_timer(0.005) { delete_channels(channels, headers, &block) }
end
end
pub.errback do
EM.add_timer(1) { delete_channels(channels, headers, &block) }
end
end
def wait_until_trash_is_empty(start_time, expected_time_for_clear, options={}, &block)
check_timer = EventMachine::PeriodicTimer.new(1) do
stats = EventMachine::HttpRequest.new("#{nginx_address}/channels-stats").get :head => headers
stats.callback do
expect(stats).to be_http_status(200).with_body
result = JSON.parse(stats.response)
if (result["messages_in_trash"].to_i == 0) && (result["channels_in_trash"].to_i == 0)
if (!options[:check_stored_messages] || (result["stored_messages"].to_i == 0)) && (!options[:check_channels] || ((result["channels"].to_i == 0) && (result["channels_in_delete"].to_i == 0)))
check_timer.cancel
stop = Time.now
expect(stop - start_time).to be_within(5).of(expected_time_for_clear)
block.call
end
end
end
end
end
let(:test_timeout) { 260 }
let(:config) do
{
:master_process => 'on',
:daemon => 'on',
:shared_memory_size => "129k",
:message_ttl => '10s',
:max_messages_stored_per_channel => nil,
:keepalive_requests => 200
}
end
let(:headers) do
{'accept' => 'text/html'}
end
context "when moving inactive channels to trash" do
it "should wait 30s by default" do
channel = 'ch_move_inactive_channels'
body = 'body'
nginx_run_server(config.merge(:store_messages => "off"), :timeout => 40) do |conf|
EventMachine.run do
pub_1 = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channel.to_s).post :head => headers, :body => body
pub_1.callback do
expect(pub_1).to be_http_status(200).with_body
start = Time.now
timer = EventMachine::PeriodicTimer.new(1) do
stats = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
stats.callback do
expect(stats).to be_http_status(200).with_body
response = JSON.parse(stats.response)
if response["channels"].to_i != 1
stop = Time.now
expect(time_diff_sec(start, stop)).to be_within(5).of(30)
expect(response["channels_in_trash"].to_i).to eql(1)
expect(response["channels"].to_i).to eql(0)
EventMachine.stop
end
end
end
end
end
end
end
it "should be possible change the default value" do
channel = 'ch_move_inactive_channels_with_custom_value'
body = 'body'
nginx_run_server(config.merge(:store_messages => "off", :channel_inactivity_time => "5s"), :timeout => 10) do |conf|
EventMachine.run do
pub_1 = EventMachine::HttpRequest.new(nginx_address + '/pub?id=' + channel.to_s).post :head => headers, :body => body
pub_1.callback do
expect(pub_1).to be_http_status(200).with_body
start = Time.now
timer = EventMachine::PeriodicTimer.new(1) do
stats = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :head => headers
stats.callback do
expect(stats).to be_http_status(200).with_body
response = JSON.parse(stats.response)
if response["channels"].to_i != 1
stop = Time.now
expect(time_diff_sec(start, stop)).to be_within(3).of(5)
expect(response["channels_in_trash"].to_i).to eql(1)
expect(response["channels"].to_i).to eql(0)
EventMachine.stop
end
end
end
end
end
end
end
#after the last published message
end
context "when nothing strange occur" do
def execute_changes_on_environment(conf, &block)
#nothing strange happens
block.call
end
it_should_behave_like "executing on normal conditions"
end
context "when a worker is killed" do
def execute_changes_on_environment(conf, &block)
pub = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :timeout => 30
pub.callback do
expect(pub).to be_http_status(200).with_body
resp_1 = JSON.parse(pub.response)
expect(resp_1["by_worker"].count).to eql(conf.workers)
pids = resp_1["by_worker"].map{ |info| info['pid'].to_i }
# send kill signal
pids.each{ |pid| `kill -9 #{ pid } > /dev/null 2>&1` }
while pids.all?{ |pid| `ps -p #{ pid } > /dev/null 2>&1; echo $?`.to_i == 0 }
sleep(0.1)
end
block.call unless block.nil?
end
end
it_should_behave_like "executing on normal conditions"
end
context "when the server is reloaded" do
def execute_changes_on_environment(conf, &block)
pub = EventMachine::HttpRequest.new(nginx_address + '/channels-stats').get :timeout => 30
pub.callback do
expect(pub).to be_http_status(200).with_body
resp_1 = JSON.parse(pub.response)
expect(resp_1["by_worker"].count).to eql(conf.workers)
pids = resp_1["by_worker"].map{ |info| info['pid'].to_i }
# send reload signal
pids.each{ |pid| `#{ nginx_executable } -c #{ conf.configuration_filename } -s reload > /dev/null 2>&1` }
while pids.all?{ |pid| `ps -p #{ pid } > /dev/null 2>&1; echo $?`.to_i == 0 }
sleep(0.1)
end
block.call unless block.nil?
end
end
it_should_behave_like "executing on normal conditions"
end
end
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