| /* |
| * 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.ratis.shell.cli.sh; |
| |
| import org.apache.ratis.RaftTestUtil; |
| import org.apache.ratis.client.RaftClient; |
| import org.apache.ratis.conf.RaftProperties; |
| import org.apache.ratis.server.RaftServer; |
| import org.apache.ratis.server.RaftServerConfigKeys; |
| import org.apache.ratis.server.impl.MiniRaftCluster; |
| import org.apache.ratis.server.raftlog.RaftLog; |
| import org.apache.ratis.statemachine.impl.SimpleStateMachine4Testing; |
| import org.apache.ratis.statemachine.StateMachine; |
| import org.apache.ratis.util.JavaUtils; |
| import org.apache.ratis.util.Slf4jUtils; |
| import org.apache.ratis.util.SizeInBytes; |
| import org.apache.ratis.util.TimeDuration; |
| import org.junit.jupiter.api.Assertions; |
| import org.junit.jupiter.api.Test; |
| import org.slf4j.event.Level; |
| |
| import java.util.concurrent.TimeUnit; |
| |
| public abstract class ElectionCommandIntegrationTest <CLUSTER extends MiniRaftCluster> |
| extends AbstractCommandIntegrationTestWithGrpc implements MiniRaftCluster.Factory.Get<CLUSTER>{ |
| |
| { |
| Slf4jUtils.setLogLevel(RaftServer.Division.LOG, Level.WARN); |
| Slf4jUtils.setLogLevel(RaftLog.LOG, Level.WARN); |
| Slf4jUtils.setLogLevel(RaftClient.LOG, Level.WARN); |
| } |
| |
| { |
| final RaftProperties prop = getProperties(); |
| prop.setClass(MiniRaftCluster.STATEMACHINE_CLASS_KEY, |
| SimpleStateMachine4Testing.class, StateMachine.class); |
| RaftServerConfigKeys.Log.setSegmentSizeMax(prop, SizeInBytes.valueOf("8KB")); |
| } |
| |
| @Test |
| public void testElectionTransferCommand() throws Exception { |
| runWithNewCluster(NUM_SERVERS, this::runTestElectionTransferCommand); |
| } |
| |
| void runTestElectionTransferCommand(MiniRaftCluster cluster) throws Exception { |
| final RaftServer.Division leader = RaftTestUtil.waitForLeader(cluster); |
| String address = getClusterAddress(cluster); |
| RaftServer.Division newLeader = cluster.getFollowers().get(0); |
| final StringPrintStream out = new StringPrintStream(); |
| RatisShell shell = new RatisShell(out.getPrintStream()); |
| Assertions.assertNotEquals(cluster.getLeader().getId(), newLeader.getId()); |
| int ret = shell.run("election", "transfer", "-peers", address, "-address", |
| newLeader.getPeer().getAddress()); |
| |
| Assertions.assertEquals(0, ret); |
| JavaUtils.attempt(() -> { |
| Assertions.assertEquals(cluster.getLeader().getId(), newLeader.getId()); |
| }, 10, TimeDuration.valueOf(1, TimeUnit.SECONDS), "testElectionTransferCommand", LOG); |
| } |
| |
| @Test |
| public void testElectionTransferCommandToHigherPriority() throws Exception { |
| runWithNewCluster(NUM_SERVERS, this::runTestElectionTransferCommandToHigherPriority); |
| } |
| |
| void runTestElectionTransferCommandToHigherPriority(MiniRaftCluster cluster) throws Exception { |
| final RaftServer.Division leader = RaftTestUtil.waitForLeader(cluster); |
| final String address = getClusterAddress(cluster); |
| |
| RaftServer.Division newLeader = cluster.getFollowers().get(0); |
| final StringPrintStream out = new StringPrintStream(); |
| RatisShell shell = new RatisShell(out.getPrintStream()); |
| Assertions.assertTrue(cluster.getFollowers().contains(newLeader)); |
| |
| // set current leader's priority to 2 |
| int ret = shell.run("peer", "setPriority", "-peers", address, "-addressPriority", |
| leader.getPeer().getAddress()+ "|" + 2); |
| Assertions.assertEquals(0, ret); |
| |
| // transfer to new leader will set its priority to 2 (with timeout 1s) |
| ret = shell.run("election", "transfer", "-peers", address, "-address", |
| newLeader.getPeer().getAddress(), "-timeout", "1"); |
| Assertions.assertEquals(0, ret); |
| |
| JavaUtils.attempt(() -> Assertions.assertEquals(cluster.getLeader().getId(), newLeader.getId()), |
| 10, TimeDuration.valueOf(1, TimeUnit.SECONDS), "testElectionTransferLeaderCommand", LOG); |
| |
| // verify that priorities of new leader and old leader are both 2 |
| ret = shell.run("group", "info", "-peers", address); |
| Assertions.assertEquals(0 , ret); |
| String expected = String.format("\"%s\"%n priority: %d", newLeader.getPeer().getAddress(), 2); |
| String expected2 = String.format("\"%s\"%n priority: %d", leader.getPeer().getAddress(), 2); |
| Assertions.assertTrue(out.toString().contains(expected)); |
| Assertions.assertTrue(out.toString().contains(expected2)); |
| } |
| |
| @Test |
| public void testElectionPauseResumeCommand() throws Exception { |
| runWithNewCluster(NUM_SERVERS, this::runTestElectionPauseResumeCommand); |
| } |
| |
| void runTestElectionPauseResumeCommand(MiniRaftCluster cluster) throws Exception { |
| final RaftServer.Division leader = RaftTestUtil.waitForLeader(cluster); |
| String sb = getClusterAddress(cluster); |
| RaftServer.Division newLeader = cluster.getFollowers().get(0); |
| final StringPrintStream out = new StringPrintStream(); |
| RatisShell shell = new RatisShell(out.getPrintStream()); |
| Assertions.assertNotEquals(cluster.getLeader().getId(), newLeader.getId()); |
| int ret = shell.run("election", "pause", "-peers", sb.toString(), "-address", |
| newLeader.getPeer().getAddress()); |
| |
| Assertions.assertEquals(0, ret); |
| ret = shell.run("peer", "setPriority", "-peers", sb.toString(), "-addressPriority", |
| newLeader.getPeer().getAddress() + "|" + 2); |
| Assertions.assertEquals(0, ret); |
| |
| JavaUtils.attempt(() -> { |
| Assertions.assertNotEquals(cluster.getLeader().getId(), newLeader.getId()); |
| }, 10, TimeDuration.valueOf(1, TimeUnit.SECONDS), "testElectionPauseResumeCommand", LOG); |
| |
| ret = shell.run("election", "resume", "-peers", sb.toString(), "-address", |
| newLeader.getPeer().getAddress()); |
| Assertions.assertEquals(0, ret); |
| |
| JavaUtils.attempt(() -> { |
| Assertions.assertEquals(cluster.getLeader().getId(), newLeader.getId()); |
| }, 10, TimeDuration.valueOf(1, TimeUnit.SECONDS), "testElectionPauseResumeCommand", LOG); |
| } |
| |
| @Test |
| public void testElectionStepDownCommand() throws Exception { |
| runWithNewCluster(NUM_SERVERS, this::runTestElectionStepDownCommand); |
| } |
| |
| void runTestElectionStepDownCommand(MiniRaftCluster cluster) throws Exception { |
| final RaftServer.Division leader = RaftTestUtil.waitForLeader(cluster); |
| String sb = getClusterAddress(cluster); |
| RaftServer.Division newLeader = cluster.getFollowers().get(0); |
| final StringPrintStream out = new StringPrintStream(); |
| RatisShell shell = new RatisShell(out.getPrintStream()); |
| Assertions.assertNotEquals(cluster.getLeader().getId(), newLeader.getId()); |
| Assertions.assertEquals(2, cluster.getFollowers().size()); |
| int ret = shell.run("election", "stepDown", "-peers", sb.toString()); |
| Assertions.assertEquals(0, ret); |
| Assertions.assertEquals(3, cluster.getFollowers().size()); |
| } |
| } |