#9890

Committed 22 Aug 2023 09:07AM UTC coverage: 47.922% (-0.07%) from 47.992%

Build # #9890

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push

travis_ci

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web-flow

Commit Message

[IOTDB-6114] Pipe: Support multi-cluster data sync (#10868)(#10926)

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/iotdb-core/datanode/src/main/java/org/apache/iotdb/db/trigger/executor/TriggerFireVisitor.java

/*
 * 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.trigger.executor;

import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation;
import org.apache.iotdb.commons.client.IClientManager;
import org.apache.iotdb.commons.client.exception.ClientManagerException;
import org.apache.iotdb.commons.client.sync.SyncDataNodeInternalServiceClient;
import org.apache.iotdb.commons.consensus.ConfigRegionId;
import org.apache.iotdb.commons.path.PartialPath;
import org.apache.iotdb.commons.trigger.TriggerInformation;
import org.apache.iotdb.commons.trigger.TriggerTable;
import org.apache.iotdb.commons.trigger.exception.TriggerExecutionException;
import org.apache.iotdb.confignode.rpc.thrift.TTriggerState;
import org.apache.iotdb.db.conf.IoTDBDescriptor;
import org.apache.iotdb.db.protocol.client.ConfigNodeClient;
import org.apache.iotdb.db.protocol.client.ConfigNodeClientManager;
import org.apache.iotdb.db.protocol.client.ConfigNodeInfo;
import org.apache.iotdb.db.queryengine.plan.Coordinator;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanVisitor;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertMultiTabletsNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowsNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowsOfOneDeviceNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertTabletNode;
import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.PipeEnrichedInsertNode;
import org.apache.iotdb.db.trigger.service.TriggerManagementService;
import org.apache.iotdb.mpp.rpc.thrift.TFireTriggerReq;
import org.apache.iotdb.mpp.rpc.thrift.TFireTriggerResp;
import org.apache.iotdb.trigger.api.enums.FailureStrategy;
import org.apache.iotdb.trigger.api.enums.TriggerEvent;
import org.apache.iotdb.tsfile.utils.BitMap;
import org.apache.iotdb.tsfile.write.record.Tablet;
import org.apache.iotdb.tsfile.write.schema.MeasurementSchema;

import org.apache.thrift.TException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

public class TriggerFireVisitor extends PlanVisitor<TriggerFireResult, TriggerEvent> {

  private static final Logger LOGGER = LoggerFactory.getLogger(TriggerFireVisitor.class);

  private static final IClientManager<ConfigRegionId, ConfigNodeClient> CONFIG_NODE_CLIENT_MANAGER =
      ConfigNodeClientManager.getInstance();

  /**
   * How many times should we retry when error occurred during firing a trigger on another datanode.
   */
  private static final int FIRE_RETRY_NUM =
      IoTDBDescriptor.getInstance().getConfig().getRetryNumToFindStatefulTrigger();

  @Override
  public TriggerFireResult process(PlanNode node, TriggerEvent context) {
    if (TriggerManagementService.getInstance().isTriggerTableEmpty()) {
      return TriggerFireResult.SUCCESS;
    }
    return node.accept(this, context);
  }

  @Override
  public TriggerFireResult visitPlan(PlanNode node, TriggerEvent context) {
    return TriggerFireResult.SUCCESS;
  }

  @Override
  public TriggerFireResult visitInsertRow(InsertRowNode node, TriggerEvent context) {
    Map<String, List<String>> triggerNameToMeasurementList =
        constructTriggerNameToMeasurementListMap(node, context);
    // return success if no trigger is found
    if (triggerNameToMeasurementList.isEmpty()) {
      return TriggerFireResult.SUCCESS;
    }

    MeasurementSchema[] measurementSchemas = node.getMeasurementSchemas();
    Map<String, Integer> measurementToSchemaIndexMap =
        constructMeasurementToSchemaIndexMap(node.getMeasurements(), measurementSchemas);

    Object[] values = node.getValues();
    long time = node.getTime();
    boolean hasFailedTrigger = false;
    for (Map.Entry<String, List<String>> entry : triggerNameToMeasurementList.entrySet()) {
      List<MeasurementSchema> schemas =
          entry.getValue().stream()
              .map(measurement -> measurementSchemas[measurementToSchemaIndexMap.get(measurement)])
              .collect(Collectors.toList());
      // only one row
      Tablet tablet = new Tablet(node.getDevicePath().getFullPath(), schemas, 1);
      // add one row
      tablet.rowSize++;
      tablet.addTimestamp(0, time);
      for (String measurement : entry.getValue()) {
        tablet.addValue(measurement, 0, values[measurementToSchemaIndexMap.get(measurement)]);
      }
      TriggerFireResult result = fire(entry.getKey(), tablet, context);
      // Terminate if a trigger with pessimistic strategy messes up
      if (result.equals(TriggerFireResult.TERMINATION)) {
        return result;
      }
      if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {
        hasFailedTrigger = true;
      }
    }
    return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;
  }

  @Override
  public TriggerFireResult visitInsertTablet(InsertTabletNode node, TriggerEvent context) {
    // group Triggers and measurements
    Map<String, List<String>> triggerNameToMeasurementList =
        constructTriggerNameToMeasurementListMap(node, context);
    // return success if no trigger is found
    if (triggerNameToMeasurementList.isEmpty()) {
      return TriggerFireResult.SUCCESS;
    }

    MeasurementSchema[] measurementSchemas = node.getMeasurementSchemas();
    Map<String, Integer> measurementToSchemaIndexMap =
        constructMeasurementToSchemaIndexMap(node.getMeasurements(), measurementSchemas);

    Object[] columns = node.getColumns();
    BitMap[] bitMaps = node.getBitMaps();
    long[] timestamps = node.getTimes();
    int rowCount = node.getRowCount();
    boolean hasFailedTrigger = false;
    for (Map.Entry<String, List<String>> entry : triggerNameToMeasurementList.entrySet()) {
      Tablet tablet;
      if (entry.getValue().size() == measurementSchemas.length) {
        // all measurements are included
        tablet =
            new Tablet(
                node.getDevicePath().getFullPath(),
                Arrays.asList(measurementSchemas),
                timestamps,
                columns,
                bitMaps,
                rowCount);
      } else {
        // choose specified columns
        List<MeasurementSchema> schemas =
            entry.getValue().stream()
                .map(
                    measurement -> measurementSchemas[measurementToSchemaIndexMap.get(measurement)])
                .collect(Collectors.toList());
        Object[] columnsOfNewTablet =
            entry.getValue().stream()
                .map(measurement -> columns[measurementToSchemaIndexMap.get(measurement)])
                .toArray();
        BitMap[] bitMapsOfNewTablet = new BitMap[entry.getValue().size()];
        if (bitMaps != null) {
          for (int i = 0; i < entry.getValue().size(); i++) {
            bitMapsOfNewTablet[i] =
                bitMaps[measurementToSchemaIndexMap.get(entry.getValue().get(i))];
          }
        }
        tablet =
            new Tablet(
                node.getDevicePath().getFullPath(),
                schemas,
                timestamps,
                columnsOfNewTablet,
                bitMapsOfNewTablet,
                rowCount);
      }

      TriggerFireResult result = fire(entry.getKey(), tablet, context);
      // Terminate if a trigger with pessimistic strategy messes up
      if (result.equals(TriggerFireResult.TERMINATION)) {
        return result;
      }
      if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {
        hasFailedTrigger = true;
      }
    }
    return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;
  }

  @Override
  public TriggerFireResult visitInsertRows(InsertRowsNode node, TriggerEvent context) {
    boolean hasFailedTrigger = false;
    for (InsertRowNode insertRowNode : node.getInsertRowNodeList()) {
      TriggerFireResult result = visitInsertRow(insertRowNode, context);
      if (result.equals(TriggerFireResult.TERMINATION)) {
        return result;
      }
      if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {
        hasFailedTrigger = true;
      }
    }
    return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;
  }

  @Override
  public TriggerFireResult visitInsertMultiTablets(
      InsertMultiTabletsNode node, TriggerEvent context) {
    boolean hasFailedTrigger = false;
    for (InsertTabletNode insertTabletNode : node.getInsertTabletNodeList()) {
      TriggerFireResult result = visitInsertTablet(insertTabletNode, context);
      if (result.equals(TriggerFireResult.TERMINATION)) {
        return result;
      }
      if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {
        hasFailedTrigger = true;
      }
    }
    return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;
  }

  @Override
  public TriggerFireResult visitInsertRowsOfOneDevice(
      InsertRowsOfOneDeviceNode node, TriggerEvent context) {
    boolean hasFailedTrigger = false;
    for (InsertRowNode insertRowNode : node.getInsertRowNodeList()) {
      TriggerFireResult result = visitInsertRow(insertRowNode, context);
      if (result.equals(TriggerFireResult.TERMINATION)) {
        return result;
      }
      if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {
        hasFailedTrigger = true;
      }
    }
    return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;
  }

  @Override
  public TriggerFireResult visitPipeEnrichedInsert(
      PipeEnrichedInsertNode node, TriggerEvent context) {
    final InsertNode realInsertNode = node.getInsertNode();
    if (realInsertNode instanceof InsertRowNode) {
      return visitInsertRow((InsertRowNode) realInsertNode, context);
    } else if (realInsertNode instanceof InsertTabletNode) {
      return visitInsertTablet((InsertTabletNode) realInsertNode, context);
    } else if (realInsertNode instanceof InsertRowsNode) {
      return visitInsertRows((InsertRowsNode) realInsertNode, context);
    } else if (realInsertNode instanceof InsertMultiTabletsNode) {
      return visitInsertMultiTablets((InsertMultiTabletsNode) realInsertNode, context);
    } else if (realInsertNode instanceof InsertRowsOfOneDeviceNode) {
      return visitInsertRowsOfOneDevice((InsertRowsOfOneDeviceNode) realInsertNode, context);
    } else {
      return visitPlan(realInsertNode, context);
    }
  }

  private Map<String, Integer> constructMeasurementToSchemaIndexMap(
      String[] measurements, MeasurementSchema[] schemas) {
    // The index of measurement and schema is the same now.
    // However, in case one day the order changes, we need to construct an index map.
    Map<String, Integer> indexMap = new HashMap<>();
    for (int i = 0, n = measurements.length; i < n; i++) {
      if (measurements[i] == null) {
        continue;
      }
      // It is the same now
      if (schemas[i] != null && schemas[i].getMeasurementId().equals(measurements[i])) {
        indexMap.put(measurements[i], i);
        continue;
      }
      for (int j = 0, m = schemas.length; j < m; j++) {
        if (schemas[j] != null && schemas[j].getMeasurementId().equals(measurements[i])) {
          indexMap.put(measurements[i], j);
          break;
        }
      }
    }
    return indexMap;
  }

  private Map<String, List<String>> constructTriggerNameToMeasurementListMap(
      InsertNode node, TriggerEvent event) {
    PartialPath device = node.getDevicePath();
    List<String> measurements = new ArrayList<>();
    for (String measurement : node.getMeasurements()) {
      if (measurement != null) {
        measurements.add(measurement);
      }
    }

    List<List<String>> triggerNameLists =
        TriggerManagementService.getInstance().getMatchedTriggerListForPath(device, measurements);
    boolean isAllEmpty = true;
    for (List<String> triggerNameList : triggerNameLists) {
      if (!triggerNameList.isEmpty()) {
        isAllEmpty = false;
        break;
      }
    }
    if (isAllEmpty) {
      return Collections.emptyMap();
    }

    Map<String, List<String>> triggerNameToPaths = new HashMap<>();
    TriggerTable triggerTable = TriggerManagementService.getInstance().getTriggerTable();
    for (int i = 0, n = measurements.size(); i < n; i++) {
      for (String triggerName : triggerNameLists.get(i)) {
        TriggerInformation triggerInformation = triggerTable.getTriggerInformation(triggerName);
        if (triggerInformation.getEvent().equals(event)
            && triggerInformation.getTriggerState().equals(TTriggerState.ACTIVE)) {
          triggerNameToPaths
              .computeIfAbsent(triggerName, k -> new ArrayList<>())
              .add(measurements.get(i));
        }
      }
    }
    return triggerNameToPaths;
  }

  private TriggerFireResult fire(String triggerName, Tablet tablet, TriggerEvent event) {
    TriggerFireResult result = TriggerFireResult.SUCCESS;
    for (int i = 0; i < FIRE_RETRY_NUM; i++) {
      if (TriggerManagementService.getInstance().needToFireOnAnotherDataNode(triggerName)) {
        TDataNodeLocation tDataNodeLocation =
            TriggerManagementService.getInstance()
                .getDataNodeLocationOfStatefulTrigger(triggerName);
        try (SyncDataNodeInternalServiceClient client =
            Coordinator.getInstance()
                .getInternalServiceClientManager()
                .borrowClient(tDataNodeLocation.getInternalEndPoint())) {
          TFireTriggerReq req = new TFireTriggerReq(triggerName, tablet.serialize(), event.getId());
          TFireTriggerResp resp = client.fireTrigger(req);
          if (resp.foundExecutor) {
            // we successfully found an executor on another data node
            return TriggerFireResult.construct(resp.getFireResult());
          } else {
            // update TDataNodeLocation of stateful trigger through config node
            if (!updateLocationOfStatefulTrigger(triggerName, tDataNodeLocation.getDataNodeId())) {
              // if TDataNodeLocation is still the same, sleep 1s and before the retry
              Thread.sleep(4000);
            }
          }
        } catch (ClientManagerException | TException e) {
          // IOException means that we failed to borrow client, possibly because corresponding
          // DataNode is down.
          // TException means there's a timeout or broken connection.
          // We need to update local TriggerTable with the new TDataNodeLocation of the stateful
          // trigger.
          LOGGER.warn(
              "Error occurred when trying to fire trigger({}) on TEndPoint: {}, the cause is: {}",
              triggerName,
              tDataNodeLocation.getInternalEndPoint(),
              e);
          // update TDataNodeLocation of stateful trigger through config node
          updateLocationOfStatefulTrigger(triggerName, tDataNodeLocation.getDataNodeId());
        } catch (InterruptedException e) {
          LOGGER.warn("{} interrupted when sleep", triggerName);
          Thread.currentThread().interrupt();
        } catch (Exception e) {
          LOGGER.warn(
              "Error occurred when trying to fire trigger({}) on TEndPoint: {}, the cause is: {}",
              triggerName,
              tDataNodeLocation.getInternalEndPoint(),
              e);
          // do not retry if it is not due to bad network or no executor found
          return TriggerManagementService.getInstance()
                  .getTriggerInformation(triggerName)
                  .getFailureStrategy()
                  .equals(FailureStrategy.OPTIMISTIC)
              ? TriggerFireResult.FAILED_NO_TERMINATION
              : TriggerFireResult.TERMINATION;
        }
      } else {
        TriggerExecutor executor = TriggerManagementService.getInstance().getExecutor(triggerName);
        if (executor == null) {
          return TriggerManagementService.getInstance()
                  .getTriggerInformation(triggerName)
                  .getFailureStrategy()
                  .equals(FailureStrategy.PESSIMISTIC)
              ? TriggerFireResult.TERMINATION
              : TriggerFireResult.FAILED_NO_TERMINATION;
        }
        try {
          boolean fireResult = executor.fire(tablet, event);
          if (!fireResult) {
            result =
                executor.getFailureStrategy().equals(FailureStrategy.PESSIMISTIC)
                    ? TriggerFireResult.TERMINATION
                    : TriggerFireResult.FAILED_NO_TERMINATION;
          }
        } catch (TriggerExecutionException e) {
          result =
              executor.getFailureStrategy().equals(FailureStrategy.PESSIMISTIC)
                  ? TriggerFireResult.TERMINATION
                  : TriggerFireResult.FAILED_NO_TERMINATION;
        }
        return result;
      }
    }
    return result;
  }

  /** Return true if the config node returns a new TDataNodeLocation. */
  private boolean updateLocationOfStatefulTrigger(String triggerName, int currentDataNodeId) {
    try (ConfigNodeClient configNodeClient =
        CONFIG_NODE_CLIENT_MANAGER.borrowClient(ConfigNodeInfo.CONFIG_REGION_ID)) {
      TDataNodeLocation newTDataNodeLocation =
          configNodeClient.getLocationOfStatefulTrigger(triggerName).getDataNodeLocation();
      if (newTDataNodeLocation != null
          && currentDataNodeId != newTDataNodeLocation.getDataNodeId()) {
        // indicates that the location of this stateful trigger has changed
        TriggerManagementService.getInstance()
            .updateLocationOfStatefulTrigger(triggerName, newTDataNodeLocation);
        return true;
      }
      return false;
    } catch (ClientManagerException | TException | IOException e) {
      LOGGER.error(
          "Failed to update location of stateful trigger({}) through config node. The cause is {}.",
          triggerName,
          e);
      return false;
    }
  }
}

1	/*
2	* Licensed to the Apache Software Foundation (ASF) under one
3	* or more contributor license agreements. See the NOTICE file
4	* distributed with this work for additional information
5	* regarding copyright ownership. The ASF licenses this file
6	* to you under the Apache License, Version 2.0 (the
7	* "License"); you may not use this file except in compliance
8	* with the License. You may obtain a copy of the License at
9	*
10	* http://www.apache.org/licenses/LICENSE-2.0
11	*
12	* Unless required by applicable law or agreed to in writing,
13	* software distributed under the License is distributed on an
14	* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15	* KIND, either express or implied. See the License for the
16	* specific language governing permissions and limitations
17	* under the License.
18	*/
19
20	package org.apache.iotdb.db.trigger.executor;
21
22	import org.apache.iotdb.common.rpc.thrift.TDataNodeLocation;
23	import org.apache.iotdb.commons.client.IClientManager;
24	import org.apache.iotdb.commons.client.exception.ClientManagerException;
25	import org.apache.iotdb.commons.client.sync.SyncDataNodeInternalServiceClient;
26	import org.apache.iotdb.commons.consensus.ConfigRegionId;
27	import org.apache.iotdb.commons.path.PartialPath;
28	import org.apache.iotdb.commons.trigger.TriggerInformation;
29	import org.apache.iotdb.commons.trigger.TriggerTable;
30	import org.apache.iotdb.commons.trigger.exception.TriggerExecutionException;
31	import org.apache.iotdb.confignode.rpc.thrift.TTriggerState;
32	import org.apache.iotdb.db.conf.IoTDBDescriptor;
33	import org.apache.iotdb.db.protocol.client.ConfigNodeClient;
34	import org.apache.iotdb.db.protocol.client.ConfigNodeClientManager;
35	import org.apache.iotdb.db.protocol.client.ConfigNodeInfo;
36	import org.apache.iotdb.db.queryengine.plan.Coordinator;
37	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanNode;
38	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.PlanVisitor;
39	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertMultiTabletsNode;
40	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertNode;
41	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowNode;
42	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowsNode;
43	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertRowsOfOneDeviceNode;
44	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.InsertTabletNode;
45	import org.apache.iotdb.db.queryengine.plan.planner.plan.node.write.PipeEnrichedInsertNode;
46	import org.apache.iotdb.db.trigger.service.TriggerManagementService;
47	import org.apache.iotdb.mpp.rpc.thrift.TFireTriggerReq;
48	import org.apache.iotdb.mpp.rpc.thrift.TFireTriggerResp;
49	import org.apache.iotdb.trigger.api.enums.FailureStrategy;
50	import org.apache.iotdb.trigger.api.enums.TriggerEvent;
51	import org.apache.iotdb.tsfile.utils.BitMap;
52	import org.apache.iotdb.tsfile.write.record.Tablet;
53	import org.apache.iotdb.tsfile.write.schema.MeasurementSchema;
54
55	import org.apache.thrift.TException;
56	import org.slf4j.Logger;
57	import org.slf4j.LoggerFactory;
58
59	import java.io.IOException;
60	import java.util.ArrayList;
61	import java.util.Arrays;
62	import java.util.Collections;
63	import java.util.HashMap;
64	import java.util.List;
65	import java.util.Map;
66	import java.util.stream.Collectors;
67
68	public class TriggerFireVisitor extends PlanVisitor<TriggerFireResult, TriggerEvent> {	1✔
69
70	private static final Logger LOGGER = LoggerFactory.getLogger(TriggerFireVisitor.class);	1✔
71
72	private static final IClientManager<ConfigRegionId, ConfigNodeClient> CONFIG_NODE_CLIENT_MANAGER =
73	ConfigNodeClientManager.getInstance();	1✔
74
75	/**
76	* How many times should we retry when error occurred during firing a trigger on another datanode.
77	*/
78	private static final int FIRE_RETRY_NUM =	1✔
79	IoTDBDescriptor.getInstance().getConfig().getRetryNumToFindStatefulTrigger();	1✔
80
81	@Override
82	public TriggerFireResult process(PlanNode node, TriggerEvent context) {
83	if (TriggerManagementService.getInstance().isTriggerTableEmpty()) {	1✔
84	return TriggerFireResult.SUCCESS;	×
85	}
86	return node.accept(this, context);	1✔
87	}
88
89	@Override
90	public TriggerFireResult visitPlan(PlanNode node, TriggerEvent context) {
91	return TriggerFireResult.SUCCESS;	×
92	}
93
94	@Override
95	public TriggerFireResult visitInsertRow(InsertRowNode node, TriggerEvent context) {
96	Map<String, List<String>> triggerNameToMeasurementList =	1✔
97	constructTriggerNameToMeasurementListMap(node, context);	1✔
98	// return success if no trigger is found
99	if (triggerNameToMeasurementList.isEmpty()) {	1✔
100	return TriggerFireResult.SUCCESS;	×
101	}
102
103	MeasurementSchema[] measurementSchemas = node.getMeasurementSchemas();	1✔
104	Map<String, Integer> measurementToSchemaIndexMap =	1✔
105	constructMeasurementToSchemaIndexMap(node.getMeasurements(), measurementSchemas);	1✔
106
107	Object[] values = node.getValues();	1✔
108	long time = node.getTime();	1✔
109	boolean hasFailedTrigger = false;	1✔
110	for (Map.Entry<String, List<String>> entry : triggerNameToMeasurementList.entrySet()) {	1✔
111	List<MeasurementSchema> schemas =	1✔
112	entry.getValue().stream()	1✔
113	.map(measurement -> measurementSchemas[measurementToSchemaIndexMap.get(measurement)])	1✔
114	.collect(Collectors.toList());	1✔
115	// only one row
116	Tablet tablet = new Tablet(node.getDevicePath().getFullPath(), schemas, 1);	1✔
117	// add one row
118	tablet.rowSize++;	1✔
119	tablet.addTimestamp(0, time);	1✔
120	for (String measurement : entry.getValue()) {	1✔
121	tablet.addValue(measurement, 0, values[measurementToSchemaIndexMap.get(measurement)]);	1✔
122	}	1✔
123	TriggerFireResult result = fire(entry.getKey(), tablet, context);	1✔
124	// Terminate if a trigger with pessimistic strategy messes up
125	if (result.equals(TriggerFireResult.TERMINATION)) {	1✔
126	return result;	×
127	}
128	if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {	1✔
129	hasFailedTrigger = true;	×
130	}
131	}	1✔
132	return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;	1✔
133	}
134
135	@Override
136	public TriggerFireResult visitInsertTablet(InsertTabletNode node, TriggerEvent context) {
137	// group Triggers and measurements
138	Map<String, List<String>> triggerNameToMeasurementList =	×
139	constructTriggerNameToMeasurementListMap(node, context);	×
140	// return success if no trigger is found
141	if (triggerNameToMeasurementList.isEmpty()) {	×
142	return TriggerFireResult.SUCCESS;	×
143	}
144
145	MeasurementSchema[] measurementSchemas = node.getMeasurementSchemas();	×
146	Map<String, Integer> measurementToSchemaIndexMap =	×
147	constructMeasurementToSchemaIndexMap(node.getMeasurements(), measurementSchemas);	×
148
149	Object[] columns = node.getColumns();	×
150	BitMap[] bitMaps = node.getBitMaps();	×
151	long[] timestamps = node.getTimes();	×
152	int rowCount = node.getRowCount();	×
153	boolean hasFailedTrigger = false;	×
154	for (Map.Entry<String, List<String>> entry : triggerNameToMeasurementList.entrySet()) {	×
155	Tablet tablet;
156	if (entry.getValue().size() == measurementSchemas.length) {	×
157	// all measurements are included
158	tablet =	×
159	new Tablet(
160	node.getDevicePath().getFullPath(),	×
161	Arrays.asList(measurementSchemas),	×
162	timestamps,
163	columns,
164	bitMaps,
165	rowCount);
166	} else {
167	// choose specified columns
168	List<MeasurementSchema> schemas =	×
169	entry.getValue().stream()	×
170	.map(	×
171	measurement -> measurementSchemas[measurementToSchemaIndexMap.get(measurement)])	×
172	.collect(Collectors.toList());	×
173	Object[] columnsOfNewTablet =	×
174	entry.getValue().stream()	×
175	.map(measurement -> columns[measurementToSchemaIndexMap.get(measurement)])	×
176	.toArray();	×
177	BitMap[] bitMapsOfNewTablet = new BitMap[entry.getValue().size()];	×
178	if (bitMaps != null) {	×
179	for (int i = 0; i < entry.getValue().size(); i++) {	×
180	bitMapsOfNewTablet[i] =	×
181	bitMaps[measurementToSchemaIndexMap.get(entry.getValue().get(i))];	×
182	}
183	}
184	tablet =	×
185	new Tablet(
186	node.getDevicePath().getFullPath(),	×
187	schemas,
188	timestamps,
189	columnsOfNewTablet,
190	bitMapsOfNewTablet,
191	rowCount);
192	}
193
194	TriggerFireResult result = fire(entry.getKey(), tablet, context);	×
195	// Terminate if a trigger with pessimistic strategy messes up
196	if (result.equals(TriggerFireResult.TERMINATION)) {	×
197	return result;	×
198	}
199	if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {	×
200	hasFailedTrigger = true;	×
201	}
202	}	×
203	return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;	×
204	}
205
206	@Override
207	public TriggerFireResult visitInsertRows(InsertRowsNode node, TriggerEvent context) {
208	boolean hasFailedTrigger = false;	×
209	for (InsertRowNode insertRowNode : node.getInsertRowNodeList()) {	×
210	TriggerFireResult result = visitInsertRow(insertRowNode, context);	×
211	if (result.equals(TriggerFireResult.TERMINATION)) {	×
212	return result;	×
213	}
214	if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {	×
215	hasFailedTrigger = true;	×
216	}
217	}	×
218	return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;	×
219	}
220
221	@Override
222	public TriggerFireResult visitInsertMultiTablets(
223	InsertMultiTabletsNode node, TriggerEvent context) {
224	boolean hasFailedTrigger = false;	×
225	for (InsertTabletNode insertTabletNode : node.getInsertTabletNodeList()) {	×
226	TriggerFireResult result = visitInsertTablet(insertTabletNode, context);	×
227	if (result.equals(TriggerFireResult.TERMINATION)) {	×
228	return result;	×
229	}
230	if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {	×
231	hasFailedTrigger = true;	×
232	}
233	}	×
234	return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;	×
235	}
236
237	@Override
238	public TriggerFireResult visitInsertRowsOfOneDevice(
239	InsertRowsOfOneDeviceNode node, TriggerEvent context) {
240	boolean hasFailedTrigger = false;	×
241	for (InsertRowNode insertRowNode : node.getInsertRowNodeList()) {	×
242	TriggerFireResult result = visitInsertRow(insertRowNode, context);	×
243	if (result.equals(TriggerFireResult.TERMINATION)) {	×
244	return result;	×
245	}
246	if (result.equals(TriggerFireResult.FAILED_NO_TERMINATION)) {	×
247	hasFailedTrigger = true;	×
248	}
249	}	×
250	return hasFailedTrigger ? TriggerFireResult.FAILED_NO_TERMINATION : TriggerFireResult.SUCCESS;	×
251	}
252
253	@Override
254	public TriggerFireResult visitPipeEnrichedInsert(
255	PipeEnrichedInsertNode node, TriggerEvent context) {
256	final InsertNode realInsertNode = node.getInsertNode();	×
257	if (realInsertNode instanceof InsertRowNode) {	×
258	return visitInsertRow((InsertRowNode) realInsertNode, context);	×
259	} else if (realInsertNode instanceof InsertTabletNode) {	×
260	return visitInsertTablet((InsertTabletNode) realInsertNode, context);	×
261	} else if (realInsertNode instanceof InsertRowsNode) {	×
262	return visitInsertRows((InsertRowsNode) realInsertNode, context);	×
263	} else if (realInsertNode instanceof InsertMultiTabletsNode) {	×
264	return visitInsertMultiTablets((InsertMultiTabletsNode) realInsertNode, context);	×
265	} else if (realInsertNode instanceof InsertRowsOfOneDeviceNode) {	×
266	return visitInsertRowsOfOneDevice((InsertRowsOfOneDeviceNode) realInsertNode, context);	×
267	} else {
268	return visitPlan(realInsertNode, context);	×
269	}
270	}
271
272	private Map<String, Integer> constructMeasurementToSchemaIndexMap(
273	String[] measurements, MeasurementSchema[] schemas) {
274	// The index of measurement and schema is the same now.
275	// However, in case one day the order changes, we need to construct an index map.
276	Map<String, Integer> indexMap = new HashMap<>();	1✔
277	for (int i = 0, n = measurements.length; i < n; i++) {	1✔
278	if (measurements[i] == null) {	1✔
279	continue;	×
280	}
281	// It is the same now
282	if (schemas[i] != null && schemas[i].getMeasurementId().equals(measurements[i])) {	1✔
283	indexMap.put(measurements[i], i);	1✔
284	continue;	1✔
285	}
286	for (int j = 0, m = schemas.length; j < m; j++) {	×
287	if (schemas[j] != null && schemas[j].getMeasurementId().equals(measurements[i])) {	×
288	indexMap.put(measurements[i], j);	×
289	break;	×
290	}
291	}
292	}
293	return indexMap;	1✔
294	}
295
296	private Map<String, List<String>> constructTriggerNameToMeasurementListMap(
297	InsertNode node, TriggerEvent event) {
298	PartialPath device = node.getDevicePath();	1✔
299	List<String> measurements = new ArrayList<>();	1✔
300	for (String measurement : node.getMeasurements()) {	1✔
301	if (measurement != null) {	1✔
302	measurements.add(measurement);	1✔
303	}
304	}
305
306	List<List<String>> triggerNameLists =
307	TriggerManagementService.getInstance().getMatchedTriggerListForPath(device, measurements);	1✔
308	boolean isAllEmpty = true;	1✔
309	for (List<String> triggerNameList : triggerNameLists) {	1✔
310	if (!triggerNameList.isEmpty()) {	1✔
311	isAllEmpty = false;	1✔
312	break;	1✔
313	}
314	}	×
315	if (isAllEmpty) {	1✔
316	return Collections.emptyMap();	×
317	}
318
319	Map<String, List<String>> triggerNameToPaths = new HashMap<>();	1✔
320	TriggerTable triggerTable = TriggerManagementService.getInstance().getTriggerTable();	1✔
321	for (int i = 0, n = measurements.size(); i < n; i++) {	1✔
322	for (String triggerName : triggerNameLists.get(i)) {	1✔
323	TriggerInformation triggerInformation = triggerTable.getTriggerInformation(triggerName);	1✔
324	if (triggerInformation.getEvent().equals(event)	1✔
325	&& triggerInformation.getTriggerState().equals(TTriggerState.ACTIVE)) {	1✔
326	triggerNameToPaths	1✔
327	.computeIfAbsent(triggerName, k -> new ArrayList<>())	1✔
328	.add(measurements.get(i));	1✔
329	}
330	}	1✔
331	}
332	return triggerNameToPaths;	1✔
333	}
334
335	private TriggerFireResult fire(String triggerName, Tablet tablet, TriggerEvent event) {
336	TriggerFireResult result = TriggerFireResult.SUCCESS;	1✔
337	for (int i = 0; i < FIRE_RETRY_NUM; i++) {	1✔
338	if (TriggerManagementService.getInstance().needToFireOnAnotherDataNode(triggerName)) {	1✔
339	TDataNodeLocation tDataNodeLocation =
340	TriggerManagementService.getInstance()	×
341	.getDataNodeLocationOfStatefulTrigger(triggerName);	×
342	try (SyncDataNodeInternalServiceClient client =
343	Coordinator.getInstance()	×
344	.getInternalServiceClientManager()	×
345	.borrowClient(tDataNodeLocation.getInternalEndPoint())) {	×
346	TFireTriggerReq req = new TFireTriggerReq(triggerName, tablet.serialize(), event.getId());	×
347	TFireTriggerResp resp = client.fireTrigger(req);	×
348	if (resp.foundExecutor) {	×
349	// we successfully found an executor on another data node
350	return TriggerFireResult.construct(resp.getFireResult());	×
351	} else {
352	// update TDataNodeLocation of stateful trigger through config node
353	if (!updateLocationOfStatefulTrigger(triggerName, tDataNodeLocation.getDataNodeId())) {	×
354	// if TDataNodeLocation is still the same, sleep 1s and before the retry
355	Thread.sleep(4000);	×
356	}
357	}
358	} catch (ClientManagerException \| TException e) {	×
359	// IOException means that we failed to borrow client, possibly because corresponding
360	// DataNode is down.
361	// TException means there's a timeout or broken connection.
362	// We need to update local TriggerTable with the new TDataNodeLocation of the stateful
363	// trigger.
364	LOGGER.warn(	×
365	"Error occurred when trying to fire trigger({}) on TEndPoint: {}, the cause is: {}",
366	triggerName,
367	tDataNodeLocation.getInternalEndPoint(),	×
368	e);
369	// update TDataNodeLocation of stateful trigger through config node
370	updateLocationOfStatefulTrigger(triggerName, tDataNodeLocation.getDataNodeId());	×
371	} catch (InterruptedException e) {	×
372	LOGGER.warn("{} interrupted when sleep", triggerName);	×
373	Thread.currentThread().interrupt();	×
374	} catch (Exception e) {	×
375	LOGGER.warn(	×
376	"Error occurred when trying to fire trigger({}) on TEndPoint: {}, the cause is: {}",
377	triggerName,
378	tDataNodeLocation.getInternalEndPoint(),	×
379	e);
380	// do not retry if it is not due to bad network or no executor found
381	return TriggerManagementService.getInstance()	×
382	.getTriggerInformation(triggerName)	×
383	.getFailureStrategy()	×
384	.equals(FailureStrategy.OPTIMISTIC)	×
385	? TriggerFireResult.FAILED_NO_TERMINATION	×
386	: TriggerFireResult.TERMINATION;	×
387	}	×
388	} else {	×
389	TriggerExecutor executor = TriggerManagementService.getInstance().getExecutor(triggerName);	1✔
390	if (executor == null) {	1✔
391	return TriggerManagementService.getInstance()	×
392	.getTriggerInformation(triggerName)	×
393	.getFailureStrategy()	×
394	.equals(FailureStrategy.PESSIMISTIC)	×
395	? TriggerFireResult.TERMINATION	×
396	: TriggerFireResult.FAILED_NO_TERMINATION;	×
397	}
398	try {
399	boolean fireResult = executor.fire(tablet, event);	1✔
400	if (!fireResult) {	1✔
401	result =
402	executor.getFailureStrategy().equals(FailureStrategy.PESSIMISTIC)	×
403	? TriggerFireResult.TERMINATION	×
404	: TriggerFireResult.FAILED_NO_TERMINATION;	×
405	}
406	} catch (TriggerExecutionException e) {	×
407	result =
408	executor.getFailureStrategy().equals(FailureStrategy.PESSIMISTIC)	×
409	? TriggerFireResult.TERMINATION	×
410	: TriggerFireResult.FAILED_NO_TERMINATION;	×
411	}	1✔
412	return result;	1✔
413	}
414	}
415	return result;	×
416	}
417
418	/** Return true if the config node returns a new TDataNodeLocation. */
419	private boolean updateLocationOfStatefulTrigger(String triggerName, int currentDataNodeId) {
420	try (ConfigNodeClient configNodeClient =	×
421	CONFIG_NODE_CLIENT_MANAGER.borrowClient(ConfigNodeInfo.CONFIG_REGION_ID)) {	×
422	TDataNodeLocation newTDataNodeLocation =	×
423	configNodeClient.getLocationOfStatefulTrigger(triggerName).getDataNodeLocation();	×
424	if (newTDataNodeLocation != null	×
425	&& currentDataNodeId != newTDataNodeLocation.getDataNodeId()) {	×
426	// indicates that the location of this stateful trigger has changed
427	TriggerManagementService.getInstance()	×
428	.updateLocationOfStatefulTrigger(triggerName, newTDataNodeLocation);	×
429	return true;	×
430	}
431	return false;	×
432	} catch (ClientManagerException \| TException \| IOException e) {	×
433	LOGGER.error(	×
434	"Failed to update location of stateful trigger({}) through config node. The cause is {}.",
435	triggerName,
436	e);
437	return false;	×
438	}
439	}
440	}

apache / iotdb / #9890

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