| /* |
| * 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.iotdb.confignode.conf; |
| |
| import org.apache.iotdb.common.rpc.thrift.TConfigNodeLocation; |
| import org.apache.iotdb.commons.exception.BadNodeUrlException; |
| import org.apache.iotdb.commons.exception.ConfigurationException; |
| import org.apache.iotdb.commons.utils.NodeUrlUtils; |
| |
| import org.slf4j.Logger; |
| import org.slf4j.LoggerFactory; |
| |
| import java.io.File; |
| import java.io.FileInputStream; |
| import java.io.FileOutputStream; |
| import java.io.IOException; |
| import java.util.ArrayList; |
| import java.util.List; |
| import java.util.Objects; |
| import java.util.Properties; |
| |
| public class SystemPropertiesUtils { |
| |
| private static final Logger LOGGER = LoggerFactory.getLogger(SystemPropertiesUtils.class); |
| |
| private static final File systemPropertiesFile = |
| new File( |
| ConfigNodeDescriptor.getInstance().getConf().getSystemDir() |
| + File.separator |
| + ConfigNodeConstant.SYSTEM_FILE_NAME); |
| |
| private static final ConfigNodeConfig conf = ConfigNodeDescriptor.getInstance().getConf(); |
| |
| /** |
| * Check if the ConfigNode is restarted |
| * |
| * @return True if confignode-system.properties file exist. |
| */ |
| public static boolean isRestarted() { |
| return systemPropertiesFile.exists(); |
| } |
| |
| /** |
| * Check whether system parameters are consistent during each restart. We only invoke this |
| * interface when restarted |
| * |
| * @throws IOException When read the confignode-system.properties file failed |
| * @throws ConfigurationException When some system parameters are inconsistent |
| */ |
| public static void checkSystemProperties() throws IOException, ConfigurationException { |
| Properties systemProperties = getSystemProperties(); |
| boolean needReWrite = false; |
| |
| // Startup configuration |
| String internalAddress = systemProperties.getProperty("internal_address", null); |
| if (internalAddress == null) { |
| needReWrite = true; |
| } else if (!internalAddress.equals(conf.getInternalAddress())) { |
| throw new ConfigurationException( |
| "internal_address", conf.getInternalAddress(), internalAddress); |
| } |
| |
| if (systemProperties.getProperty("internal_port", null) == null) { |
| needReWrite = true; |
| } else { |
| int internalPort = Integer.parseInt(systemProperties.getProperty("internal_port")); |
| if (internalPort != conf.getInternalPort()) { |
| throw new ConfigurationException( |
| "internal_port", String.valueOf(conf.getInternalPort()), String.valueOf(internalPort)); |
| } |
| } |
| |
| if (systemProperties.getProperty("consensus_port", null) == null) { |
| needReWrite = true; |
| } else { |
| int consensusPort = Integer.parseInt(systemProperties.getProperty("consensus_port")); |
| if (consensusPort != conf.getConsensusPort()) { |
| throw new ConfigurationException( |
| "consensus_port", |
| String.valueOf(conf.getConsensusPort()), |
| String.valueOf(consensusPort)); |
| } |
| } |
| |
| // Consensus protocol configuration |
| String configNodeConsensusProtocolClass = |
| systemProperties.getProperty("config_node_consensus_protocol_class", null); |
| if (configNodeConsensusProtocolClass == null) { |
| needReWrite = true; |
| } else if (!configNodeConsensusProtocolClass.equals( |
| conf.getConfigNodeConsensusProtocolClass())) { |
| throw new ConfigurationException( |
| "config_node_consensus_protocol_class", |
| conf.getConfigNodeConsensusProtocolClass(), |
| configNodeConsensusProtocolClass); |
| } |
| |
| String dataRegionConsensusProtocolClass = |
| systemProperties.getProperty("data_region_consensus_protocol_class", null); |
| if (dataRegionConsensusProtocolClass == null) { |
| needReWrite = true; |
| } else if (!dataRegionConsensusProtocolClass.equals( |
| conf.getDataRegionConsensusProtocolClass())) { |
| throw new ConfigurationException( |
| "data_region_consensus_protocol_class", |
| conf.getDataRegionConsensusProtocolClass(), |
| dataRegionConsensusProtocolClass); |
| } |
| |
| String schemaRegionConsensusProtocolClass = |
| systemProperties.getProperty("schema_region_consensus_protocol_class", null); |
| if (schemaRegionConsensusProtocolClass == null) { |
| needReWrite = true; |
| } else if (!schemaRegionConsensusProtocolClass.equals( |
| conf.getSchemaRegionConsensusProtocolClass())) { |
| throw new ConfigurationException( |
| "schema_region_consensus_protocol_class", |
| conf.getSchemaRegionConsensusProtocolClass(), |
| schemaRegionConsensusProtocolClass); |
| } |
| |
| // PartitionSlot configuration |
| if (systemProperties.getProperty("series_partition_slot_num", null) == null) { |
| needReWrite = true; |
| } else { |
| int seriesPartitionSlotNum = |
| Integer.parseInt(systemProperties.getProperty("series_partition_slot_num")); |
| if (seriesPartitionSlotNum != conf.getSeriesPartitionSlotNum()) { |
| throw new ConfigurationException( |
| "series_partition_slot_num", |
| String.valueOf(conf.getSeriesPartitionSlotNum()), |
| String.valueOf(seriesPartitionSlotNum)); |
| } |
| } |
| |
| String seriesPartitionSlotExecutorClass = |
| systemProperties.getProperty("series_partition_executor_class", null); |
| if (seriesPartitionSlotExecutorClass == null) { |
| needReWrite = true; |
| } else if (!Objects.equals( |
| seriesPartitionSlotExecutorClass, conf.getSeriesPartitionExecutorClass())) { |
| throw new ConfigurationException( |
| "series_partition_executor_class", |
| conf.getSeriesPartitionExecutorClass(), |
| seriesPartitionSlotExecutorClass); |
| } |
| |
| if (needReWrite) { |
| // Re-write special parameters if necessary |
| storeSystemParameters(); |
| } |
| } |
| |
| /** |
| * Load the config_node_list in confignode-system.properties file. We only invoke this interface |
| * when restarted. |
| * |
| * @return The property of config_node_list in confignode-system.properties file |
| * @throws IOException When load confignode-system.properties file failed |
| * @throws BadNodeUrlException When parsing config_node_list failed |
| */ |
| public static List<TConfigNodeLocation> loadConfigNodeList() |
| throws IOException, BadNodeUrlException { |
| Properties systemProperties = getSystemProperties(); |
| String addresses = systemProperties.getProperty("config_node_list", null); |
| |
| if (addresses != null && !addresses.isEmpty()) { |
| return NodeUrlUtils.parseTConfigNodeUrls(addresses); |
| } else { |
| return new ArrayList<>(); |
| } |
| } |
| |
| /** |
| * The system parameters can't be changed after the ConfigNode first started. Therefore, store |
| * them in confignode-system.properties during the first startup |
| */ |
| public static void storeSystemParameters() throws IOException { |
| Properties systemProperties = getSystemProperties(); |
| // Startup configuration |
| systemProperties.setProperty("internal_address", String.valueOf(conf.getInternalAddress())); |
| systemProperties.setProperty("internal_port", String.valueOf(conf.getInternalPort())); |
| systemProperties.setProperty("consensus_port", String.valueOf(conf.getConsensusPort())); |
| |
| // Consensus protocol configuration |
| systemProperties.setProperty( |
| "config_node_consensus_protocol_class", conf.getConfigNodeConsensusProtocolClass()); |
| systemProperties.setProperty( |
| "data_region_consensus_protocol_class", conf.getDataRegionConsensusProtocolClass()); |
| systemProperties.setProperty( |
| "schema_region_consensus_protocol_class", conf.getSchemaRegionConsensusProtocolClass()); |
| |
| // PartitionSlot configuration |
| systemProperties.setProperty( |
| "series_partition_slot_num", String.valueOf(conf.getSeriesPartitionSlotNum())); |
| systemProperties.setProperty( |
| "series_partition_executor_class", conf.getSeriesPartitionExecutorClass()); |
| |
| storeSystemProperties(systemProperties); |
| } |
| |
| /** |
| * Store the latest config_node_list in confignode-system.properties file |
| * |
| * @param configNodes The latest ConfigNodeList |
| * @throws IOException When store confignode-system.properties file failed |
| */ |
| public static void storeConfigNodeList(List<TConfigNodeLocation> configNodes) throws IOException { |
| if (!systemPropertiesFile.exists()) { |
| // Avoid creating confignode-system.properties files during |
| // synchronizing the ApplyConfigNode logs from the ConsensusLayer. |
| // 1. For the Non-Seed-ConfigNode, We don't need to create confignode-system.properties file |
| // until the leader sends the notifyRegisterSuccess request. |
| // 2. The leader commits the ApplyConfigNode log at the end of AddConfigNodeProcedure, |
| // in which case the latest config_node_list will be updated. |
| return; |
| } |
| |
| Properties systemProperties = getSystemProperties(); |
| systemProperties.setProperty( |
| "config_node_list", NodeUrlUtils.convertTConfigNodeUrls(configNodes)); |
| |
| storeSystemProperties(systemProperties); |
| } |
| |
| private static synchronized Properties getSystemProperties() throws IOException { |
| // Create confignode-system.properties file if necessary |
| if (!systemPropertiesFile.exists()) { |
| if (systemPropertiesFile.createNewFile()) { |
| LOGGER.info( |
| "System properties file {} for ConfigNode is created.", |
| systemPropertiesFile.getAbsolutePath()); |
| } else { |
| LOGGER.error( |
| "Can't create the system properties file {} for ConfigNode. IoTDB-ConfigNode is shutdown.", |
| systemPropertiesFile.getAbsolutePath()); |
| throw new IOException("Can't create system properties file"); |
| } |
| } |
| |
| Properties systemProperties = new Properties(); |
| try (FileInputStream inputStream = new FileInputStream(systemPropertiesFile)) { |
| systemProperties.load(inputStream); |
| } |
| return systemProperties; |
| } |
| |
| private static synchronized void storeSystemProperties(Properties systemProperties) |
| throws IOException { |
| try (FileOutputStream fileOutputStream = new FileOutputStream(systemPropertiesFile)) { |
| systemProperties.store(fileOutputStream, ""); |
| } |
| } |
| } |