| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you under the Apache License, Version 2.0 (the |
| * "License"); you may not use this file except in compliance |
| * with the License. You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| package org.apache.cassandra.service.paxos.uncommitted; |
| |
| import com.google.common.collect.Iterators; |
| import com.google.common.collect.Lists; |
| import org.junit.*; |
| |
| import org.apache.cassandra.SchemaLoader; |
| import org.apache.cassandra.Util; |
| import org.apache.cassandra.config.DatabaseDescriptor; |
| import org.apache.cassandra.cql3.statements.schema.CreateTableStatement; |
| import org.apache.cassandra.db.DecoratedKey; |
| import org.apache.cassandra.schema.KeyspaceParams; |
| import org.apache.cassandra.schema.TableMetadata; |
| import org.apache.cassandra.service.paxos.Ballot; |
| import org.apache.cassandra.service.paxos.PaxosState; |
| import org.apache.cassandra.utils.ByteBufferUtil; |
| import org.apache.cassandra.utils.CloseableIterator; |
| |
| import static org.apache.cassandra.service.paxos.Ballot.Flag.NONE; |
| import static org.apache.cassandra.service.paxos.BallotGenerator.Global.nextBallot; |
| import static org.apache.cassandra.service.paxos.Commit.*; |
| import static org.apache.cassandra.service.paxos.uncommitted.PaxosUncommittedTests.ALL_RANGES; |
| import static org.apache.cassandra.service.paxos.uncommitted.PaxosUncommittedTests.PAXOS_CFS; |
| |
| public class PaxosUncommittedTrackerIntegrationTest |
| { |
| protected static String ks; |
| protected static final String tbl = "tbl"; |
| protected static TableMetadata cfm; |
| |
| @BeforeClass |
| public static void setUpClass() throws Exception |
| { |
| SchemaLoader.prepareServer(); |
| |
| ks = "coordinatorsessiontest"; |
| cfm = CreateTableStatement.parse("CREATE TABLE tbl (k INT PRIMARY KEY, v INT)", ks).build(); |
| SchemaLoader.createKeyspace(ks, KeyspaceParams.simple(1), cfm); |
| } |
| |
| @Before |
| public void setUp() throws Exception |
| { |
| PAXOS_CFS.truncateBlocking(); |
| } |
| |
| private static DecoratedKey dk(int v) |
| { |
| return DatabaseDescriptor.getPartitioner().decorateKey(ByteBufferUtil.bytes(v)); |
| } |
| |
| @Test |
| public void commitCycle() |
| { |
| PaxosUncommittedTracker tracker = PaxosState.uncommittedTracker(); |
| PaxosBallotTracker ballotTracker = PaxosState.ballotTracker(); |
| Assert.assertNull(tracker.getTableState(cfm.id)); |
| Assert.assertEquals(Ballot.none(), ballotTracker.getLowBound()); |
| Assert.assertEquals(Ballot.none(), ballotTracker.getHighBound()); |
| |
| try (CloseableIterator<UncommittedPaxosKey> iterator = tracker.uncommittedKeyIterator(cfm.id, ALL_RANGES)) |
| { |
| Assert.assertFalse(iterator.hasNext()); |
| } |
| |
| DecoratedKey key = dk(1); |
| Ballot ballot = nextBallot(NONE); |
| Proposal proposal = new Proposal(ballot, PaxosRowsTest.nonEmptyUpdate(ballot, cfm, key)); |
| |
| try (PaxosState state = PaxosState.get(key, cfm)) |
| { |
| state.promiseIfNewer(proposal.ballot, true); |
| } |
| |
| try (CloseableIterator<UncommittedPaxosKey> iterator = tracker.uncommittedKeyIterator(cfm.id, ALL_RANGES)) |
| { |
| Assert.assertEquals(key, Iterators.getOnlyElement(iterator).getKey()); |
| } |
| |
| try (PaxosState state = PaxosState.get(key, cfm)) |
| { |
| state.acceptIfLatest(proposal); |
| } |
| |
| try (CloseableIterator<UncommittedPaxosKey> iterator = tracker.uncommittedKeyIterator(cfm.id, ALL_RANGES)) |
| { |
| Assert.assertEquals(key, Iterators.getOnlyElement(iterator).getKey()); |
| } |
| |
| PaxosState.commitDirect(proposal.agreed()); |
| try (CloseableIterator<UncommittedPaxosKey> iterator = tracker.uncommittedKeyIterator(cfm.id, ALL_RANGES)) |
| { |
| Assert.assertFalse(iterator.hasNext()); |
| } |
| } |
| |
| @Test |
| public void inMemoryCommit() |
| { |
| PaxosUncommittedTracker tracker = PaxosState.uncommittedTracker(); |
| |
| DecoratedKey key = dk(1); |
| Ballot ballot = nextBallot(NONE); |
| Proposal proposal = new Proposal(ballot, PaxosRowsTest.nonEmptyUpdate(ballot, cfm, key)); |
| |
| try (PaxosState state = PaxosState.get(key, cfm)) |
| { |
| state.promiseIfNewer(proposal.ballot, true); |
| state.acceptIfLatest(proposal); |
| } |
| try (CloseableIterator<UncommittedPaxosKey> iterator = tracker.uncommittedKeyIterator(cfm.id, ALL_RANGES)) |
| { |
| Assert.assertEquals(key, Iterators.getOnlyElement(iterator).getKey()); |
| } |
| |
| Util.flush(PAXOS_CFS); |
| |
| PaxosState.commitDirect(proposal.agreed()); |
| try (CloseableIterator<UncommittedPaxosKey> iterator = tracker.uncommittedKeyIterator(cfm.id, ALL_RANGES)) |
| { |
| Assert.assertEquals(Lists.newArrayList(), Lists.newArrayList(iterator)); |
| } |
| } |
| } |