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

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$:.unshift(File.join(File.dirname(__FILE__), '..', 'lib'))
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require './test/replica_sets/rs_test_helper'
# NOTE: This test expects a replica set of three nodes to be running
# on the local host.
class ReplicaSetQuerySecondariesTest < Test::Unit::TestCase
include Mongo
def setup
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RS.restart_killed_nodes
@conn = ReplSetConnection.new([RS.host, RS.ports[0]], :read => :secondary)
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@secondary = Connection.new(@conn.read_pool.host, @conn.read_pool.port, :slave_ok => true)
@db = @conn.db(MONGO_TEST_DB)
@db.drop_collection("test-sets")
end
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def teardown
RS.restart_killed_nodes
@conn.close if @conn
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end
def test_read_primary
rescue_connection_failure do
assert !@conn.read_primary?
assert !@conn.primary?
end
end
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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_query_secondaries
@coll = @db.collection("test-sets", :safe => {:w => 3, :wtimeout => 20000})
@coll.save({:a => 20})
@coll.save({:a => 30})
@coll.save({:a => 40})
results = []
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queries_before = @secondary['admin'].command({:serverStatus => 1})['opcounters']['query']
@coll.find.each {|r| results << r["a"]}
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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)
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RS.kill_primary
results = []
rescue_connection_failure do
@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
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
@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)
# 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
def test_write_lots_of_data
@coll = @db.collection("test-sets", {:safe => {:w => 2}})
6000.times do |n|
@coll.save({:a => n})
end
cursor = @coll.find()
cursor.next
cursor.close
end
end