Caideyipi commented on code in PR #11706: URL: https://github.com/apache/iotdb/pull/11706#discussion_r1431263102
########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/thrift/SyncClientManager.java: ########## @@ -0,0 +1,232 @@ +/* + * 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.db.pipe.connector.protocol.thrift; + +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.commons.client.property.ThriftClientProperty; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.pipe.config.PipeConfig; +import org.apache.iotdb.db.pipe.connector.payload.evolvable.request.PipeTransferHandshakeReq; +import org.apache.iotdb.db.pipe.connector.protocol.thrift.sync.IoTDBThriftSyncConnectorClient; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tsfile.PipeTsFileInsertionEvent; +import org.apache.iotdb.pipe.api.exception.PipeConnectionException; +import org.apache.iotdb.rpc.TSStatusCode; +import org.apache.iotdb.service.rpc.thrift.TPipeTransferResp; +import org.apache.iotdb.tsfile.utils.Pair; + +import org.apache.thrift.TException; +import org.apache.thrift.transport.TTransportException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +public class SyncClientManager { + private static final Logger LOGGER = LoggerFactory.getLogger(SyncClientManager.class); + + private static final PipeConfig PIPE_CONFIG = PipeConfig.getInstance(); + + private final boolean useSSL; + private final String trustStore; + private final String trustStorePwd; + private final boolean useLeaderCache; + + private final List<TEndPoint> endPoints; + private final Map<TEndPoint, Pair<IoTDBThriftSyncConnectorClient, Boolean>> endPoint2client = + new ConcurrentHashMap<>(); + + private final LeaderCacheManager leaderCacheManager = new LeaderCacheManager(); + + private long currentClientIndex = 0; + + public SyncClientManager( + List<TEndPoint> endPoints, + boolean useSSL, + String trustStore, + String trustStorePwd, + boolean useLeaderCache) { + this.useSSL = useSSL; + this.trustStore = trustStore; + this.trustStorePwd = trustStorePwd; + this.useLeaderCache = useLeaderCache; + this.endPoints = endPoints; + + for (TEndPoint endPoint : endPoints) { + endPoint2client.put(endPoint, new Pair<>(null, false)); + } + } + + public void initClients() throws IOException, TTransportException { + // init clients + for (TEndPoint endPoint : endPoints) { + if (Boolean.TRUE.equals(endPoint2client.get(endPoint).getRight())) { + continue; + } + + initAndSetClient(endPoint); + } + // check whether any clients are available + for (TEndPoint nodeUrl : endPoint2client.keySet()) { + if (Boolean.TRUE.equals(endPoint2client.get(nodeUrl).getRight())) { + return; + } + } + + throw new PipeConnectionException( + String.format("All target servers %s are not available.", endPoint2client.keySet())); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getOneConnectedClientAndStatus() { + final int clientSize = endPoints.size(); + // Round-robin, find the next alive client + for (int tryCount = 0; tryCount < clientSize; ++tryCount) { + final int clientIndex = (int) (currentClientIndex++ % clientSize); + Pair<IoTDBThriftSyncConnectorClient, Boolean> clientAndStatus = + endPoint2client.get(endPoints.get(clientIndex)); + if (Boolean.TRUE.equals(clientAndStatus.getRight())) { + return clientAndStatus; + } + } + throw new PipeConnectionException( + "All clients are dead, please check the connection to the receiver."); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeInsertNodeTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); + return endPoint == null + || !useLeaderCache + || !endPoint2client.containsKey(endPoint) + || Boolean.FALSE.equals(endPoint2client.get(endPoint).getRight()) + ? getOneConnectedClientAndStatus() + : endPoint2client.get(endPoint); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeRawTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); + return endPoint == null + || !useLeaderCache + || !endPoint2client.containsKey(endPoint) + || Boolean.FALSE.equals(endPoint2client.get(endPoint).getRight()) + ? getOneConnectedClientAndStatus() + : endPoint2client.get(endPoint); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeTsFileInsertionEvent event) { + return getOneConnectedClientAndStatus(); + } + + public void updateOrCreate(String deviceId, TEndPoint endPoint) { + try { + endPoints.add(endPoint); + initAndSetClient(endPoint); + leaderCacheManager.updateOrCreate(deviceId, endPoint); + } catch (TTransportException e) { + LOGGER.warn( + "Unable to create client with target server ip: {}, port: {}, because: {}.", + endPoint.getIp(), + endPoint.getPort(), + e.getMessage()); + } catch (IOException e) { + LOGGER.warn("Unable to create a handshake request."); + } + } + + public void clean() { + for (TEndPoint endPoint : endPoint2client.keySet()) { + try { + if (endPoint2client.get(endPoint).getLeft() != null) { + endPoint2client.get(endPoint).getLeft().close(); + endPoint2client.get(endPoint).setLeft(null); + endPoint2client.get(endPoint).setRight(null); Review Comment: This "null" set to status may be redundant? ########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/thrift/SyncClientManager.java: ########## @@ -0,0 +1,232 @@ +/* + * 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.db.pipe.connector.protocol.thrift; + +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.commons.client.property.ThriftClientProperty; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.pipe.config.PipeConfig; +import org.apache.iotdb.db.pipe.connector.payload.evolvable.request.PipeTransferHandshakeReq; +import org.apache.iotdb.db.pipe.connector.protocol.thrift.sync.IoTDBThriftSyncConnectorClient; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tsfile.PipeTsFileInsertionEvent; +import org.apache.iotdb.pipe.api.exception.PipeConnectionException; +import org.apache.iotdb.rpc.TSStatusCode; +import org.apache.iotdb.service.rpc.thrift.TPipeTransferResp; +import org.apache.iotdb.tsfile.utils.Pair; + +import org.apache.thrift.TException; +import org.apache.thrift.transport.TTransportException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +public class SyncClientManager { + private static final Logger LOGGER = LoggerFactory.getLogger(SyncClientManager.class); + + private static final PipeConfig PIPE_CONFIG = PipeConfig.getInstance(); + + private final boolean useSSL; + private final String trustStore; + private final String trustStorePwd; + private final boolean useLeaderCache; + + private final List<TEndPoint> endPoints; + private final Map<TEndPoint, Pair<IoTDBThriftSyncConnectorClient, Boolean>> endPoint2client = + new ConcurrentHashMap<>(); + + private final LeaderCacheManager leaderCacheManager = new LeaderCacheManager(); + + private long currentClientIndex = 0; + + public SyncClientManager( + List<TEndPoint> endPoints, + boolean useSSL, + String trustStore, + String trustStorePwd, + boolean useLeaderCache) { + this.useSSL = useSSL; + this.trustStore = trustStore; + this.trustStorePwd = trustStorePwd; + this.useLeaderCache = useLeaderCache; + this.endPoints = endPoints; + + for (TEndPoint endPoint : endPoints) { + endPoint2client.put(endPoint, new Pair<>(null, false)); + } + } + + public void initClients() throws IOException, TTransportException { + // init clients + for (TEndPoint endPoint : endPoints) { + if (Boolean.TRUE.equals(endPoint2client.get(endPoint).getRight())) { + continue; + } + + initAndSetClient(endPoint); + } + // check whether any clients are available + for (TEndPoint nodeUrl : endPoint2client.keySet()) { + if (Boolean.TRUE.equals(endPoint2client.get(nodeUrl).getRight())) { + return; + } + } + + throw new PipeConnectionException( + String.format("All target servers %s are not available.", endPoint2client.keySet())); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getOneConnectedClientAndStatus() { + final int clientSize = endPoints.size(); + // Round-robin, find the next alive client + for (int tryCount = 0; tryCount < clientSize; ++tryCount) { + final int clientIndex = (int) (currentClientIndex++ % clientSize); + Pair<IoTDBThriftSyncConnectorClient, Boolean> clientAndStatus = + endPoint2client.get(endPoints.get(clientIndex)); + if (Boolean.TRUE.equals(clientAndStatus.getRight())) { + return clientAndStatus; + } + } + throw new PipeConnectionException( + "All clients are dead, please check the connection to the receiver."); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeInsertNodeTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); Review Comment: The name of the "endpoint" can be a little more explanatory, such as "leaderEndpoint". ########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/thrift/LeaderCacheManager.java: ########## @@ -0,0 +1,55 @@ +/* + * 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.db.pipe.connector.protocol.thrift; + +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertNode; + +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +public class LeaderCacheManager { + private final Map<String, TEndPoint> device2endpoint = new ConcurrentHashMap<>(); + + public TEndPoint getEndPointByDeviceId(String deviceId) { + return device2endpoint.getOrDefault(deviceId, null); + } + + public TEndPoint parseEndPoint(PipeInsertNodeTabletInsertionEvent event) { + InsertNode insertNode = event.getInsertNodeViaCacheIfPossible(); + return insertNode == null + ? null + : getEndPointByDeviceId(insertNode.getDevicePath().getFullPath()); + } + + public TEndPoint parseEndPoint(PipeRawTabletInsertionEvent event) { + return getEndPointByDeviceId(event.getDeviceId()); + } + + public void updateOrCreate(String deviceId, TEndPoint endPoint) { Review Comment: What about directly put it? ########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/thrift/SyncClientManager.java: ########## @@ -0,0 +1,232 @@ +/* + * 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.db.pipe.connector.protocol.thrift; + +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.commons.client.property.ThriftClientProperty; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.pipe.config.PipeConfig; +import org.apache.iotdb.db.pipe.connector.payload.evolvable.request.PipeTransferHandshakeReq; +import org.apache.iotdb.db.pipe.connector.protocol.thrift.sync.IoTDBThriftSyncConnectorClient; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tsfile.PipeTsFileInsertionEvent; +import org.apache.iotdb.pipe.api.exception.PipeConnectionException; +import org.apache.iotdb.rpc.TSStatusCode; +import org.apache.iotdb.service.rpc.thrift.TPipeTransferResp; +import org.apache.iotdb.tsfile.utils.Pair; + +import org.apache.thrift.TException; +import org.apache.thrift.transport.TTransportException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +public class SyncClientManager { + private static final Logger LOGGER = LoggerFactory.getLogger(SyncClientManager.class); + + private static final PipeConfig PIPE_CONFIG = PipeConfig.getInstance(); + + private final boolean useSSL; + private final String trustStore; + private final String trustStorePwd; + private final boolean useLeaderCache; + + private final List<TEndPoint> endPoints; + private final Map<TEndPoint, Pair<IoTDBThriftSyncConnectorClient, Boolean>> endPoint2client = + new ConcurrentHashMap<>(); + + private final LeaderCacheManager leaderCacheManager = new LeaderCacheManager(); + + private long currentClientIndex = 0; + + public SyncClientManager( + List<TEndPoint> endPoints, + boolean useSSL, + String trustStore, + String trustStorePwd, + boolean useLeaderCache) { + this.useSSL = useSSL; + this.trustStore = trustStore; + this.trustStorePwd = trustStorePwd; + this.useLeaderCache = useLeaderCache; + this.endPoints = endPoints; + + for (TEndPoint endPoint : endPoints) { + endPoint2client.put(endPoint, new Pair<>(null, false)); + } + } + + public void initClients() throws IOException, TTransportException { + // init clients + for (TEndPoint endPoint : endPoints) { + if (Boolean.TRUE.equals(endPoint2client.get(endPoint).getRight())) { + continue; + } + + initAndSetClient(endPoint); + } + // check whether any clients are available + for (TEndPoint nodeUrl : endPoint2client.keySet()) { + if (Boolean.TRUE.equals(endPoint2client.get(nodeUrl).getRight())) { + return; + } + } + + throw new PipeConnectionException( + String.format("All target servers %s are not available.", endPoint2client.keySet())); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getOneConnectedClientAndStatus() { Review Comment: Maybe "getNext" is better? ########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/thrift/SyncClientManager.java: ########## @@ -0,0 +1,232 @@ +/* + * 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.db.pipe.connector.protocol.thrift; + +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.commons.client.property.ThriftClientProperty; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.pipe.config.PipeConfig; +import org.apache.iotdb.db.pipe.connector.payload.evolvable.request.PipeTransferHandshakeReq; +import org.apache.iotdb.db.pipe.connector.protocol.thrift.sync.IoTDBThriftSyncConnectorClient; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tsfile.PipeTsFileInsertionEvent; +import org.apache.iotdb.pipe.api.exception.PipeConnectionException; +import org.apache.iotdb.rpc.TSStatusCode; +import org.apache.iotdb.service.rpc.thrift.TPipeTransferResp; +import org.apache.iotdb.tsfile.utils.Pair; + +import org.apache.thrift.TException; +import org.apache.thrift.transport.TTransportException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +public class SyncClientManager { + private static final Logger LOGGER = LoggerFactory.getLogger(SyncClientManager.class); + + private static final PipeConfig PIPE_CONFIG = PipeConfig.getInstance(); + + private final boolean useSSL; + private final String trustStore; + private final String trustStorePwd; + private final boolean useLeaderCache; + + private final List<TEndPoint> endPoints; + private final Map<TEndPoint, Pair<IoTDBThriftSyncConnectorClient, Boolean>> endPoint2client = + new ConcurrentHashMap<>(); + + private final LeaderCacheManager leaderCacheManager = new LeaderCacheManager(); + + private long currentClientIndex = 0; + + public SyncClientManager( + List<TEndPoint> endPoints, + boolean useSSL, + String trustStore, + String trustStorePwd, + boolean useLeaderCache) { + this.useSSL = useSSL; + this.trustStore = trustStore; + this.trustStorePwd = trustStorePwd; + this.useLeaderCache = useLeaderCache; + this.endPoints = endPoints; + + for (TEndPoint endPoint : endPoints) { + endPoint2client.put(endPoint, new Pair<>(null, false)); + } + } + + public void initClients() throws IOException, TTransportException { + // init clients + for (TEndPoint endPoint : endPoints) { + if (Boolean.TRUE.equals(endPoint2client.get(endPoint).getRight())) { + continue; + } + + initAndSetClient(endPoint); + } + // check whether any clients are available + for (TEndPoint nodeUrl : endPoint2client.keySet()) { + if (Boolean.TRUE.equals(endPoint2client.get(nodeUrl).getRight())) { + return; + } + } + + throw new PipeConnectionException( + String.format("All target servers %s are not available.", endPoint2client.keySet())); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getOneConnectedClientAndStatus() { + final int clientSize = endPoints.size(); + // Round-robin, find the next alive client + for (int tryCount = 0; tryCount < clientSize; ++tryCount) { + final int clientIndex = (int) (currentClientIndex++ % clientSize); + Pair<IoTDBThriftSyncConnectorClient, Boolean> clientAndStatus = + endPoint2client.get(endPoints.get(clientIndex)); + if (Boolean.TRUE.equals(clientAndStatus.getRight())) { + return clientAndStatus; + } + } + throw new PipeConnectionException( + "All clients are dead, please check the connection to the receiver."); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeInsertNodeTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); + return endPoint == null + || !useLeaderCache + || !endPoint2client.containsKey(endPoint) + || Boolean.FALSE.equals(endPoint2client.get(endPoint).getRight()) + ? getOneConnectedClientAndStatus() + : endPoint2client.get(endPoint); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeRawTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); + return endPoint == null + || !useLeaderCache + || !endPoint2client.containsKey(endPoint) + || Boolean.FALSE.equals(endPoint2client.get(endPoint).getRight()) + ? getOneConnectedClientAndStatus() + : endPoint2client.get(endPoint); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeTsFileInsertionEvent event) { + return getOneConnectedClientAndStatus(); + } + + public void updateOrCreate(String deviceId, TEndPoint endPoint) { + try { + endPoints.add(endPoint); Review Comment: The "endPoints" may be useless after the first call to "initClients()", by the way, if you "add" an endpoint to update that you may be expecting the "endPoints" to be a set. ########## iotdb-core/datanode/src/main/java/org/apache/iotdb/db/pipe/connector/protocol/thrift/SyncClientManager.java: ########## @@ -0,0 +1,232 @@ +/* + * 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.db.pipe.connector.protocol.thrift; + +import org.apache.iotdb.common.rpc.thrift.TEndPoint; +import org.apache.iotdb.commons.client.property.ThriftClientProperty; +import org.apache.iotdb.commons.conf.CommonDescriptor; +import org.apache.iotdb.commons.pipe.config.PipeConfig; +import org.apache.iotdb.db.pipe.connector.payload.evolvable.request.PipeTransferHandshakeReq; +import org.apache.iotdb.db.pipe.connector.protocol.thrift.sync.IoTDBThriftSyncConnectorClient; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeInsertNodeTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tablet.PipeRawTabletInsertionEvent; +import org.apache.iotdb.db.pipe.event.common.tsfile.PipeTsFileInsertionEvent; +import org.apache.iotdb.pipe.api.exception.PipeConnectionException; +import org.apache.iotdb.rpc.TSStatusCode; +import org.apache.iotdb.service.rpc.thrift.TPipeTransferResp; +import org.apache.iotdb.tsfile.utils.Pair; + +import org.apache.thrift.TException; +import org.apache.thrift.transport.TTransportException; +import org.slf4j.Logger; +import org.slf4j.LoggerFactory; + +import java.io.IOException; +import java.util.List; +import java.util.Map; +import java.util.concurrent.ConcurrentHashMap; + +public class SyncClientManager { + private static final Logger LOGGER = LoggerFactory.getLogger(SyncClientManager.class); + + private static final PipeConfig PIPE_CONFIG = PipeConfig.getInstance(); + + private final boolean useSSL; + private final String trustStore; + private final String trustStorePwd; + private final boolean useLeaderCache; + + private final List<TEndPoint> endPoints; + private final Map<TEndPoint, Pair<IoTDBThriftSyncConnectorClient, Boolean>> endPoint2client = + new ConcurrentHashMap<>(); + + private final LeaderCacheManager leaderCacheManager = new LeaderCacheManager(); + + private long currentClientIndex = 0; + + public SyncClientManager( + List<TEndPoint> endPoints, + boolean useSSL, + String trustStore, + String trustStorePwd, + boolean useLeaderCache) { + this.useSSL = useSSL; + this.trustStore = trustStore; + this.trustStorePwd = trustStorePwd; + this.useLeaderCache = useLeaderCache; + this.endPoints = endPoints; + + for (TEndPoint endPoint : endPoints) { + endPoint2client.put(endPoint, new Pair<>(null, false)); + } + } + + public void initClients() throws IOException, TTransportException { + // init clients + for (TEndPoint endPoint : endPoints) { + if (Boolean.TRUE.equals(endPoint2client.get(endPoint).getRight())) { + continue; + } + + initAndSetClient(endPoint); + } + // check whether any clients are available + for (TEndPoint nodeUrl : endPoint2client.keySet()) { + if (Boolean.TRUE.equals(endPoint2client.get(nodeUrl).getRight())) { + return; + } + } + + throw new PipeConnectionException( + String.format("All target servers %s are not available.", endPoint2client.keySet())); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getOneConnectedClientAndStatus() { + final int clientSize = endPoints.size(); + // Round-robin, find the next alive client + for (int tryCount = 0; tryCount < clientSize; ++tryCount) { + final int clientIndex = (int) (currentClientIndex++ % clientSize); + Pair<IoTDBThriftSyncConnectorClient, Boolean> clientAndStatus = + endPoint2client.get(endPoints.get(clientIndex)); + if (Boolean.TRUE.equals(clientAndStatus.getRight())) { + return clientAndStatus; + } + } + throw new PipeConnectionException( + "All clients are dead, please check the connection to the receiver."); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeInsertNodeTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); + return endPoint == null + || !useLeaderCache + || !endPoint2client.containsKey(endPoint) + || Boolean.FALSE.equals(endPoint2client.get(endPoint).getRight()) + ? getOneConnectedClientAndStatus() + : endPoint2client.get(endPoint); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeRawTabletInsertionEvent event) { + TEndPoint endPoint = leaderCacheManager.parseEndPoint(event); + return endPoint == null + || !useLeaderCache + || !endPoint2client.containsKey(endPoint) + || Boolean.FALSE.equals(endPoint2client.get(endPoint).getRight()) + ? getOneConnectedClientAndStatus() + : endPoint2client.get(endPoint); + } + + public Pair<IoTDBThriftSyncConnectorClient, Boolean> getClientAndStatusByEvent( + PipeTsFileInsertionEvent event) { + return getOneConnectedClientAndStatus(); + } + + public void updateOrCreate(String deviceId, TEndPoint endPoint) { + try { + endPoints.add(endPoint); + initAndSetClient(endPoint); + leaderCacheManager.updateOrCreate(deviceId, endPoint); + } catch (TTransportException e) { + LOGGER.warn( + "Unable to create client with target server ip: {}, port: {}, because: {}.", + endPoint.getIp(), + endPoint.getPort(), + e.getMessage()); + } catch (IOException e) { + LOGGER.warn("Unable to create a handshake request."); + } + } + + public void clean() { + for (TEndPoint endPoint : endPoint2client.keySet()) { + try { + if (endPoint2client.get(endPoint).getLeft() != null) { + endPoint2client.get(endPoint).getLeft().close(); + endPoint2client.get(endPoint).setLeft(null); + endPoint2client.get(endPoint).setRight(null); + } + } catch (Exception e) { + LOGGER.warn( + "Failed to close client {}:{}, because: {}.", endPoint.getIp(), endPoint.getPort(), e); + } finally { + endPoint2client.get(endPoint).setRight(false); + } + } + } + + private void initAndSetClient(TEndPoint endPoint) throws TTransportException, IOException { + if (endPoint2client.get(endPoint).getLeft() != null) { Review Comment: Closing a client upon redirection is a little bit not graceful...... Besides, if a client is killed here, the status will not be set to false, and if it does not start successfully.... -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: [email protected] For queries about this service, please contact Infrastructure at: [email protected]
