mongo-ruby-driver/test/replica_sets/read_preference_test.rb

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$:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
require './test/replica_sets/rs_test_helper'
require 'logger'
class ReadPreferenceTest < Test::Unit::TestCase
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def setup
ensure_rs
log = Logger.new("test.log")
seeds = build_seeds(2)
args = {
:read => :secondary,
:pool_size => 50,
:refresh_mode => false,
:refresh_interval => 5,
:logger => log
}
@conn = ReplSetConnection.new(seeds, args)
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@db = @conn.db(MONGO_TEST_DB)
@db.drop_collection("test-sets")
end
def teardown
@rs.restart_killed_nodes
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end
def test_read_primary
rescue_connection_failure do
assert !@conn.read_primary?
assert !@conn.primary?
end
end
def test_con
assert @conn.primary_pool, "No primary pool!"
assert @conn.read_pool, "No read pool!"
assert @conn.primary_pool.port != @conn.read_pool.port,
"Primary port and read port at the same!"
end
def test_read_secondary_only
@rs.add_arbiter
@rs.remove_secondary_node
@conn = ReplSetConnection.new(build_seeds(2), :read => :secondary_only)
@db = @conn.db(MONGO_TEST_DB)
@coll = @db.collection("test-sets")
@coll.save({:a => 20}, :safe => {:w => 2})
# Test that reads are going to secondary on ReplSetConnection
@secondary = Connection.new(@rs.host, @conn.secondary_pool.port, :slave_ok => true)
queries_before = @secondary['admin'].command({:serverStatus => 1})['opcounters']['query']
@coll.find_one
queries_after = @secondary['admin'].command({:serverStatus => 1})['opcounters']['query']
assert_equal 1, queries_after - queries_before
@rs.kill_secondary
@conn.refresh
# Test that reads are only allowed from secondaries
assert_raise ConnectionFailure.new("Could not checkout a socket.") do
@coll.find_one
end
@rs = ReplSetManager.new
@rs.start_set
end
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def test_query_secondaries
@secondary = Connection.new(@rs.host, @conn.read_pool.port, :slave_ok => true)
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@coll = @db.collection("test-sets", :safe => {:w => 3, :wtimeout => 20000})
@coll.save({:a => 20})
@coll.save({:a => 30})
@coll.save({:a => 40})
results = []
queries_before = @secondary['admin'].command({:serverStatus => 1})['opcounters']['query']
@coll.find.each {|r| results << r["a"]}
queries_after = @secondary['admin'].command({:serverStatus => 1})['opcounters']['query']
assert_equal 1, queries_after - queries_before
assert results.include?(20)
assert results.include?(30)
assert results.include?(40)
@rs.kill_primary
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results = []
rescue_connection_failure do
puts "@coll.find().each"
@coll.find.each {|r| results << r}
[20, 30, 40].each do |a|
assert results.any? {|r| r['a'] == a}, "Could not find record for a => #{a}"
end
end
end
def test_kill_primary
@coll = @db.collection("test-sets", :safe => {:w => 3, :wtimeout => 10000})
@coll.save({:a => 20})
@coll.save({:a => 30})
assert_equal 2, @coll.find.to_a.length
# Should still be able to read immediately after killing master node
@rs.kill_primary
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assert_equal 2, @coll.find.to_a.length
rescue_connection_failure do
@coll.save({:a => 50}, :safe => {:w => 2, :wtimeout => 10000})
end
@rs.restart_killed_nodes
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@coll.save({:a => 50}, :safe => {:w => 2, :wtimeout => 10000})
assert_equal 4, @coll.find.to_a.length
end
def test_kill_secondary
@coll = @db.collection("test-sets", {:safe => {:w => 3, :wtimeout => 20000}})
@coll.save({:a => 20})
@coll.save({:a => 30})
assert_equal 2, @coll.find.to_a.length
read_node = @rs.get_node_from_port(@conn.read_pool.port)
@rs.kill(read_node)
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# Should fail immediately on next read
old_read_pool_port = @conn.read_pool.port
assert_raise ConnectionFailure do
@coll.find.to_a.length
end
# Should eventually reconnect and be able to read
rescue_connection_failure do
length = @coll.find.to_a.length
assert_equal 2, length
end
new_read_pool_port = @conn.read_pool.port
assert old_read_pool_port != new_read_pool_port
end
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def test_write_lots_of_data
@coll = @db.collection("test-sets", {:safe => {:w => 2}})
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6000.times do |n|
@coll.save({:a => n})
end
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cursor = @coll.find()
cursor.next
cursor.close
end
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# TODO: enable this once we enable reads from tags.
# def test_query_tagged
# col = @db['mongo-test']
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# col.insert({:a => 1}, :safe => {:w => 3})
# col.find_one({}, :read => {:db => "main"})
# col.find_one({}, :read => {:dc => "ny"})
# col.find_one({}, :read => {:dc => "sf"})
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# assert_raise Mongo::NodeWithTagsNotFound do
# col.find_one({}, :read => {:foo => "bar"})
# end
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# threads = []
# 100.times do
# threads << Thread.new do
# col.find_one({}, :read => {:dc => "sf"})
# end
# end
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# threads.each {|t| t.join }
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# col.remove
# end
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#def teardown
# @rs.restart_killed_nodes
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#end
end