/
transactional_producer_spec.rb
425 lines (334 loc) · 14 KB
/
transactional_producer_spec.rb
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# frozen_string_literal: true
describe "Transactional producer", functional: true do
example 'Typical transactional production' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.deliver_messages
producer.produce('Test 3', topic: topic, partition: 0)
producer.produce('Test 4', topic: topic, partition: 1)
producer.produce('Test 5', topic: topic, partition: 2)
producer.deliver_messages
producer.commit_transaction
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest)
expect(records.length).to eql(2)
expect(records[0].value).to eql('Test 1')
expect(records[1].value).to eql('Test 3')
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest)
expect(records.length).to eql(2)
expect(records[0].value).to eql('Test 2')
expect(records[1].value).to eql('Test 4')
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 5')
producer.shutdown
end
example 'Multiple transactional production' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.deliver_messages
producer.commit_transaction
sleep 1
producer.begin_transaction
producer.produce('Test 3', topic: topic, partition: 0)
producer.produce('Test 4', topic: topic, partition: 1)
producer.produce('Test 5', topic: topic, partition: 2)
producer.deliver_messages
producer.commit_transaction
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest)
expect(records.length).to eql(2)
expect(records[0].value).to eql('Test 1')
expect(records[1].value).to eql('Test 3')
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest)
expect(records.length).to eql(2)
expect(records[0].value).to eql('Test 2')
expect(records[1].value).to eql('Test 4')
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 5')
producer.shutdown
end
example 'Consumer could not read not-completed transactional production' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.produce('Test 3', topic: topic, partition: 2)
producer.deliver_messages
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
producer.commit_transaction
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 1')
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 2')
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 3')
producer.shutdown
end
example 'Multi-topic transaction' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic_1 = create_random_topic(num_partitions: 3)
topic_2 = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic_1, partition: 0)
producer.produce('Test 2', topic: topic_1, partition: 1)
producer.deliver_messages
producer.produce('Test 3', topic: topic_2, partition: 0)
producer.produce('Test 4', topic: topic_2, partition: 1)
producer.produce('Test 5', topic: topic_2, partition: 2)
producer.deliver_messages
producer.commit_transaction
records = kafka.fetch_messages(topic: topic_1, partition: 0, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 1')
records = kafka.fetch_messages(topic: topic_1, partition: 1, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 2')
records = kafka.fetch_messages(topic: topic_2, partition: 0, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 3')
records = kafka.fetch_messages(topic: topic_2, partition: 1, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 4')
records = kafka.fetch_messages(topic: topic_2, partition: 2, offset: :earliest)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 5')
producer.shutdown
end
example 'Consumer could not read aborted transactional production' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.produce('Test 3', topic: topic, partition: 2)
producer.deliver_messages
producer.abort_transaction
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
producer.shutdown
end
example 'Multi-topic aborted transactions' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic_1 = create_random_topic(num_partitions: 3)
topic_2 = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic_1, partition: 0)
producer.produce('Test 2', topic: topic_1, partition: 1)
producer.deliver_messages
producer.produce('Test 3', topic: topic_2, partition: 0)
producer.produce('Test 4', topic: topic_2, partition: 1)
producer.produce('Test 5', topic: topic_2, partition: 2)
producer.deliver_messages
producer.abort_transaction
records = kafka.fetch_messages(topic: topic_1, partition: 0, offset: :earliest)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic_1, partition: 1, offset: :earliest)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic_2, partition: 0, offset: :earliest)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic_2, partition: 1, offset: :earliest)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic_2, partition: 2, offset: :earliest)
expect(records.length).to eql(0)
producer.shutdown
end
example 'Fenced-out producer' do
transactional_id = SecureRandom.uuid
topic = create_random_topic(num_partitions: 3)
producer_1 = kafka.producer(
transactional: true,
transactional_id: transactional_id
)
producer_1.init_transactions
producer_1.begin_transaction
producer_1.produce('Test 1', topic: topic, partition: 0)
producer_1.produce('Test 2', topic: topic, partition: 1)
producer_1.produce('Test 3', topic: topic, partition: 2)
producer_1.deliver_messages
producer_1.commit_transaction
sleep 1
producer_2 = kafka.producer(
transactional: true,
transactional_id: transactional_id
)
producer_2.init_transactions
producer_2.begin_transaction
producer_2.produce('Test 4', topic: topic, partition: 0)
producer_2.produce('Test 5', topic: topic, partition: 1)
producer_2.deliver_messages
producer_2.commit_transaction
producer_1.begin_transaction
producer_1.produce('Test 6', topic: topic, partition: 0)
expect do
producer_1.deliver_messages
end.to raise_error(Kafka::InvalidProducerEpochError)
producer_1.shutdown
producer_2.shutdown
end
example 'Concurrent transaction' do
transactional_id = SecureRandom.uuid
topic = create_random_topic(num_partitions: 3)
producer_1 = kafka.producer(
transactional: true,
transactional_id: transactional_id
)
producer_1.init_transactions
producer_1.begin_transaction
producer_1.produce('Test 1', topic: topic, partition: 0)
producer_1.produce('Test 2', topic: topic, partition: 1)
producer_1.produce('Test 3', topic: topic, partition: 2)
producer_1.deliver_messages
producer_2 = kafka.producer(
transactional: true,
transactional_id: transactional_id
)
expect do
producer_2.init_transactions
end.to raise_error(Kafka::ConcurrentTransactionError)
begin
producer_1.shutdown
producer_2.shutdown
rescue; end
end
example '#transaction syntax' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.transaction do
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.deliver_messages
producer.produce('Test 3', topic: topic, partition: 2)
producer.deliver_messages
end
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 1')
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 2')
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(1)
expect(records[0].value).to eql('Test 3')
producer.shutdown
end
example '#transaction syntax, block raises error' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
expect do
producer.transaction do
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.produce('Test 3', topic: topic, partition: 2)
producer.deliver_messages
raise 'Something went wrong'
end
end.to raise_error(/something went wrong/i)
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
producer.shutdown
end
example '#transaction syntax, block actively aborts the transaction' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
expect do
producer.transaction do
producer.produce('Test 1', topic: topic, partition: 0)
producer.produce('Test 2', topic: topic, partition: 1)
producer.produce('Test 3', topic: topic, partition: 2)
producer.deliver_messages
raise Kafka::Producer::AbortTransaction
end
end.not_to raise_error
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 1, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
records = kafka.fetch_messages(topic: topic, partition: 2, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(0)
producer.shutdown
end
example 'Transaction is idempotent by default' do
producer = kafka.producer(
transactional: true,
transactional_id: SecureRandom.uuid
)
topic = create_random_topic(num_partitions: 3)
producer.init_transactions
producer.begin_transaction
producer.produce('Test 1', topic: topic, partition: 0)
producer.deliver_messages
producer.produce('Test 2', topic: topic, partition: 0)
begin
allow_any_instance_of(Kafka::SocketWithTimeout).to receive(:read).and_raise(Errno::ETIMEDOUT)
producer.deliver_messages
rescue
end
allow_any_instance_of(Kafka::SocketWithTimeout).to receive(:read).and_call_original
producer.deliver_messages
producer.commit_transaction
records = kafka.fetch_messages(topic: topic, partition: 0, offset: :earliest, max_wait_time: 1)
expect(records.length).to eql(2)
expect(records[0].value).to eql('Test 1')
expect(records[1].value).to eql('Test 2')
producer.shutdown
end
end