| /* |
| * |
| * 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.bookkeeper.client; |
| |
| import static org.apache.bookkeeper.client.api.BKException.Code.WriteException; |
| import static org.apache.bookkeeper.common.concurrent.FutureUtils.result; |
| import static org.junit.Assert.assertEquals; |
| import static org.junit.Assert.fail; |
| |
| import java.nio.ByteBuffer; |
| import org.apache.bookkeeper.client.api.WriteHandle; |
| import org.apache.bookkeeper.conf.ClientConfiguration; |
| import org.junit.Test; |
| |
| /** |
| * Test ensemble change has a max num. |
| */ |
| public class TestMaxEnsembleChangeNum extends MockBookKeeperTestCase { |
| |
| private static final byte[] password = new byte[5]; |
| private static final byte[] data = new byte[5]; |
| |
| @Test |
| public void testChangeEnsembleMaxNumWithWriter() throws Exception { |
| long lId; |
| int numEntries = 5; |
| int changeNum = 5; |
| setBookKeeperConfig(new ClientConfiguration().setDelayEnsembleChange(false).setMaxAllowedEnsembleChanges(5)); |
| try (WriteHandle writer = result(newCreateLedgerOp() |
| .withAckQuorumSize(3) |
| .withWriteQuorumSize(3) |
| .withEnsembleSize(3) |
| .withPassword(password) |
| .execute())) { |
| lId = writer.getId(); |
| //first fragment |
| for (int i = 0; i < numEntries; i++) { |
| writer.append(ByteBuffer.wrap(data)); |
| } |
| assertEquals("There should be zero ensemble change", |
| 1, getLedgerMetadata(lId).getAllEnsembles().size()); |
| |
| simulateEnsembleChangeWithWriter(changeNum, numEntries, writer); |
| |
| // one more ensemble change |
| startNewBookie(); |
| killBookie(writer.getLedgerMetadata().getEnsembleAt(writer.getLastAddConfirmed()).get(0)); |
| // add failure |
| try { |
| writer.append(ByteBuffer.wrap(data)); |
| fail("should not come to here"); |
| } catch (BKException exception){ |
| assertEquals(exception.getCode(), WriteException); |
| } |
| } |
| } |
| |
| private void simulateEnsembleChangeWithWriter(int changeNum, int numEntries, WriteHandle writer) throws Exception{ |
| |
| int expectedSize = writer.getLedgerMetadata().getAllEnsembles().size() + 1; |
| //kill bookie and add again |
| for (int num = 0; num < changeNum; num++){ |
| startNewBookie(); |
| |
| killBookie(writer.getLedgerMetadata().getEnsembleAt(writer.getLastAddConfirmed()).get(0)); |
| for (int i = 0; i < numEntries; i++) { |
| writer.append(ByteBuffer.wrap(data)); |
| } |
| // ensure there is a ensemble changed |
| assertEquals("There should be one ensemble change", |
| expectedSize + num, writer.getLedgerMetadata().getAllEnsembles().size()); |
| } |
| } |
| } |