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Posted to dev@rocketmq.apache.org by GitBox <gi...@apache.org> on 2022/08/10 02:12:44 UTC
[GitHub] [rocketmq] tsunghanjacktsai commented on a diff in pull request #4798: [ISSUE #4791] Add elect master command for admin CLI
tsunghanjacktsai commented on code in PR #4798:
URL: https://github.com/apache/rocketmq/pull/4798#discussion_r941942077
##########
tools/src/main/java/org/apache/rocketmq/tools/command/controller/ReElectMasterSubCommand.java:
##########
@@ -0,0 +1,92 @@
+/*
+ * 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.rocketmq.tools.command.controller;
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+import org.apache.rocketmq.common.protocol.body.BrokerMemberGroup;
+import org.apache.rocketmq.common.protocol.header.namesrv.controller.ElectMasterResponseHeader;
+import org.apache.rocketmq.remoting.RPCHook;
+import org.apache.rocketmq.tools.admin.DefaultMQAdminExt;
+import org.apache.rocketmq.tools.command.SubCommand;
+import org.apache.rocketmq.tools.command.SubCommandException;
+
+public class ReElectMasterSubCommand implements SubCommand {
+
+ @Override
+ public String commandName() {
+ return "electMaster";
+ }
+
+ @Override
+ public String commandDesc() {
+ return "Re-elect the specified broker as master";
+ }
+
+ @Override
+ public Options buildCommandlineOptions(Options options) {
+ Option opt = new Option("a", "controllerAddress", true, "The address of controller");
+ opt.setRequired(true);
+ options.addOption(opt);
+
+ opt = new Option("b", "brokerAddress", true, "which address of the broker wants to be master");
Review Comment:
> which address of the broker wants to be master
to:
> The address of the broker which requires to become master
##########
tools/src/main/java/org/apache/rocketmq/tools/command/controller/ReElectMasterSubCommand.java:
##########
@@ -0,0 +1,92 @@
+/*
+ * 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.rocketmq.tools.command.controller;
+
+import org.apache.commons.cli.CommandLine;
+import org.apache.commons.cli.Option;
+import org.apache.commons.cli.Options;
+import org.apache.rocketmq.common.protocol.body.BrokerMemberGroup;
+import org.apache.rocketmq.common.protocol.header.namesrv.controller.ElectMasterResponseHeader;
+import org.apache.rocketmq.remoting.RPCHook;
+import org.apache.rocketmq.tools.admin.DefaultMQAdminExt;
+import org.apache.rocketmq.tools.command.SubCommand;
+import org.apache.rocketmq.tools.command.SubCommandException;
+
+public class ReElectMasterSubCommand implements SubCommand {
+
+ @Override
+ public String commandName() {
+ return "electMaster";
+ }
+
+ @Override
+ public String commandDesc() {
+ return "Re-elect the specified broker as master";
+ }
+
+ @Override
+ public Options buildCommandlineOptions(Options options) {
+ Option opt = new Option("a", "controllerAddress", true, "The address of controller");
+ opt.setRequired(true);
+ options.addOption(opt);
+
+ opt = new Option("b", "brokerAddress", true, "which address of the broker wants to be master");
+ opt.setRequired(true);
+ options.addOption(opt);
+
+ opt = new Option("n", "brokerName", true, "The broker name of the replicas want to operate");
Review Comment:
> The broker name of the replicas want to operate
to:
> The broker name of the replicas that require to be manipulated
##########
controller/src/main/java/org/apache/rocketmq/controller/impl/manager/ReplicasInfoManager.java:
##########
@@ -160,25 +162,35 @@ public ControllerResult<ElectMasterResponseHeader> electMaster(
// First, check whether the master is still active
final String oldMaster = syncStateInfo.getMasterAddress();
if (StringUtils.isNoneEmpty(oldMaster) && brokerAlivePredicate.test(brokerInfo.getClusterName(), oldMaster)) {
- String err = String.format("The old master %s is still alive, not need to elect new master for broker %s", oldMaster, brokerInfo.getBrokerName());
- log.warn("{}", err);
- result.setCodeAndRemark(ResponseCode.CONTROLLER_INVALID_REQUEST, err);
- return result;
+
+ if (StringUtils.isBlank(assignBrokerAddress)) {
+ String err = String.format("The old master %s is still alive, not need to elect new master for broker %s", oldMaster, brokerInfo.getBrokerName());
+ log.warn("{}", err);
+ result.setCodeAndRemark(ResponseCode.CONTROLLER_INVALID_REQUEST, err);
+ return result;
+ }
+
+ if (StringUtils.equals(oldMaster, assignBrokerAddress)) {
+ String err = String.format("The Re-elect master the same as old master %s and old master is still alive, not need to elect new master for broker %s", oldMaster, brokerInfo.getBrokerName());
Review Comment:
> The Re-elect master the same as old master %s and old master is still alive, not need to elect new master for broker %s
to:
> The Re-elect master is the same as the old master %s which is still alive, no need to elect new master for broker %s
##########
controller/src/main/java/org/apache/rocketmq/controller/impl/manager/ReplicasInfoManager.java:
##########
@@ -160,25 +161,30 @@ public ControllerResult<ElectMasterResponseHeader> electMaster(
// First, check whether the master is still active
final String oldMaster = syncStateInfo.getMasterAddress();
if (StringUtils.isNoneEmpty(oldMaster) && brokerAlivePredicate.test(brokerInfo.getClusterName(), oldMaster)) {
- String err = String.format("The old master %s is still alive, not need to elect new master for broker %s", oldMaster, brokerInfo.getBrokerName());
- log.warn("{}", err);
- result.setCodeAndRemark(ResponseCode.CONTROLLER_INVALID_REQUEST, err);
- return result;
+
+ if (StringUtils.isBlank(assignBrokerAddress) || StringUtils.equals(oldMaster, assignBrokerAddress)) {
+ String err = String.format("The old master %s is still alive, not need to elect new master for broker %s", oldMaster, brokerInfo.getBrokerName());
Review Comment:
> The old master %s is still alive, not need to elect new master for broker %s
to:
> The old master %s is still alive, no need to elect new master for broker %s
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