Package org.apache.hadoop.hive.ql.plan

Examples of org.apache.hadoop.hive.ql.plan.StatsWork

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   */
  private void addStatsTask(FileSinkOperator nd, MoveTask mvTask,
      Task<? extends Serializable> currTask, HiveConf hconf) {

    MoveWork mvWork = ((MoveTask)mvTask).getWork();
    StatsWork statsWork = new StatsWork(mvWork.getLoadTableWork());
    MapredWork mrWork = (MapredWork) currTask.getWork();

    // AggKey in StatsWork is used for stats aggregation while StatsAggPrefix
    // in FileSinkDesc is used for stats publishing. They should be consistent.
    statsWork.setAggKey(((FileSinkOperator)nd).getConf().getStatsAggPrefix());
    Task<? extends Serializable> statsTask = TaskFactory.get(statsWork, hconf);

    // mark the MapredWork and FileSinkOperator for gathering stats
    nd.getConf().setGatherStats(true);
    mrWork.setGatheringStats(true);
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    // Some stats like number of rows require a scan of the data
    // However, some other stats, like number of files, do not require a complete scan
    // Update the stats which do not require a complete scan.
    Task<? extends Serializable> statTask = null;
    if (conf.getBoolVar(HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
      StatsWork statDesc = new StatsWork(loadTableWork);
      statDesc.setNoStatsAggregator(true);
      statDesc.setClearAggregatorStats(true);
      statDesc.setStatsReliable(conf.getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
      statTask = TaskFactory.get(statDesc, conf);
    }

    // HIVE-3334 has been filed for load file with index auto update
    if (HiveConf.getBoolVar(conf, HiveConf.ConfVars.HIVEINDEXAUTOUPDATE)) {
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   */
  private void addStatsTask(FileSinkOperator nd, MoveTask mvTask,
      Task<? extends Serializable> currTask, HiveConf hconf) {

    MoveWork mvWork = ((MoveTask) mvTask).getWork();
    StatsWork statsWork = null;
    if (mvWork.getLoadTableWork() != null) {
      statsWork = new StatsWork(mvWork.getLoadTableWork());
    } else if (mvWork.getLoadFileWork() != null) {
      statsWork = new StatsWork(mvWork.getLoadFileWork());
    }
    assert statsWork != null : "Error when genereting StatsTask";
    statsWork.setStatsReliable(hconf.getBoolVar(ConfVars.HIVE_STATS_RELIABLE));
    MapredWork mrWork = (MapredWork) currTask.getWork();

    // AggKey in StatsWork is used for stats aggregation while StatsAggPrefix
    // in FileSinkDesc is used for stats publishing. They should be consistent.
    statsWork.setAggKey(((FileSinkOperator) nd).getConf().getStatsAggPrefix());
    Task<? extends Serializable> statsTask = TaskFactory.get(statsWork, hconf);

    // mark the MapredWork and FileSinkOperator for gathering stats
    nd.getConf().setGatherStats(true);
    mrWork.getMapWork().setGatheringStats(true);
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            conf);
        truncateTask.addDependentTask(moveTsk);

        // Recalculate the HDFS stats if auto gather stats is set
        if (conf.getBoolVar(HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
          StatsWork statDesc;
          if (oldTblPartLoc.equals(newTblPartLoc)) {
            // If we're merging to the same location, we can avoid some metastore calls
            tableSpec tablepart = new tableSpec(this.db, conf, root);
            statDesc = new StatsWork(tablepart);
          } else {
            statDesc = new StatsWork(ltd);
          }
          statDesc.setNoStatsAggregator(true);
          statDesc.setStatsReliable(conf.getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
          Task<? extends Serializable> statTask = TaskFactory.get(statDesc, conf);
          moveTsk.addDependentTask(statTask);
        }
      } catch (HiveException e) {
        throw new SemanticException(e);
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      Task<MoveWork> moveTsk = TaskFactory.get(new MoveWork(null, null, ltd, null, false),
          conf);
      mergeTask.addDependentTask(moveTsk);

      if (conf.getBoolVar(HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
        StatsWork statDesc;
        if (oldTblPartLoc.equals(newTblPartLoc)) {
          // If we're merging to the same location, we can avoid some metastore calls
          tableSpec tablepart = new tableSpec(this.db, conf, tablePartAST);
          statDesc = new StatsWork(tablepart);
        } else {
          statDesc = new StatsWork(ltd);
        }
        statDesc.setNoStatsAggregator(true);
        statDesc.setStatsReliable(conf.getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
        Task<? extends Serializable> statTask = TaskFactory.get(statDesc, conf);
        moveTsk.addDependentTask(statTask);
      }

      rootTasks.add(mergeTask);
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   */
  private void addStatsTask(FileSinkOperator nd, MoveTask mvTask,
      Task<? extends Serializable> currTask, HiveConf hconf) {

    MoveWork mvWork = ((MoveTask)mvTask).getWork();
    StatsWork statsWork = new StatsWork(mvWork.getLoadTableWork());
    MapredWork mrWork = (MapredWork) currTask.getWork();

    // AggKey in StatsWork is used for stats aggregation while StatsAggPrefix
    // in FileSinkDesc is used for stats publishing. They should be consistent.
    statsWork.setAggKey(((FileSinkOperator)nd).getConf().getStatsAggPrefix());
    Task<? extends Serializable> statsTask = TaskFactory.get(statsWork, hconf);

    // mark the MapredWork and FileSinkOperator for gathering stats
    nd.getConf().setGatherStats(true);
    mrWork.setGatheringStats(true);
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          partSpec == null ? new HashMap<String, String>() : partSpec);
      Task<MoveWork> moveTsk = TaskFactory.get(new MoveWork(null, null, ltd, null, false),
          conf);
      mergeTask.addDependentTask(moveTsk);
      tableSpec tablepart = new tableSpec(this.db, conf, tablePartAST);
      StatsWork statDesc = new StatsWork(tablepart);
      statDesc.setNoStatsAggregator(true);
      Task<? extends Serializable> statTask = TaskFactory.get(statDesc, conf);
      moveTsk.addDependentTask(statTask);

      rootTasks.add(mergeTask);
    } catch (Exception e) {
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            conf);
        truncateTask.addDependentTask(moveTsk);

        // Recalculate the HDFS stats if auto gather stats is set
        if (conf.getBoolVar(HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
          StatsWork statDesc;
          if (oldTblPartLoc.equals(newTblPartLoc)) {
            // If we're merging to the same location, we can avoid some metastore calls
            tableSpec tablepart = new tableSpec(this.db, conf, root);
            statDesc = new StatsWork(tablepart);
          } else {
            statDesc = new StatsWork(ltd);
          }
          statDesc.setNoStatsAggregator(true);
          statDesc.setClearAggregatorStats(true);
          statDesc.setStatsReliable(conf.getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
          Task<? extends Serializable> statTask = TaskFactory.get(statDesc, conf);
          moveTsk.addDependentTask(statTask);
        }
      } catch (HiveException e) {
        throw new SemanticException(e);
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      Task<MoveWork> moveTsk = TaskFactory.get(new MoveWork(null, null, ltd, null, false),
          conf);
      mergeTask.addDependentTask(moveTsk);

      if (conf.getBoolVar(HiveConf.ConfVars.HIVESTATSAUTOGATHER)) {
        StatsWork statDesc;
        if (oldTblPartLoc.equals(newTblPartLoc)) {
          // If we're merging to the same location, we can avoid some metastore calls
          tableSpec tablepart = new tableSpec(this.db, conf, tablePartAST);
          statDesc = new StatsWork(tablepart);
        } else {
          statDesc = new StatsWork(ltd);
        }
        statDesc.setNoStatsAggregator(true);
        statDesc.setClearAggregatorStats(true);
        statDesc.setStatsReliable(conf.getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
        Task<? extends Serializable> statTask = TaskFactory.get(statDesc, conf);
        moveTsk.addDependentTask(statTask);
      }

      rootTasks.add(mergeTask);
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          //   ANALYZE TABLE T [PARTITION (...)] COMPUTE STATISTICS;
          // The plan consists of a simple MapRedTask followed by a StatsTask.
          // The MR task is just a simple TableScanOperator

          StatsWork statsWork = new StatsWork(parseCtx.getQB().getParseInfo().getTableSpec());
          statsWork.setAggKey(op.getConf().getStatsAggPrefix());
          statsWork.setStatsReliable(
            parseCtx.getConf().getBoolVar(HiveConf.ConfVars.HIVE_STATS_RELIABLE));
          Task<StatsWork> statsTask = TaskFactory.get(statsWork, parseCtx.getConf());
          currTask.addDependentTask(statsTask);
          if (!ctx.getRootTasks().contains(currTask)) {
            ctx.getRootTasks().add(currTask);
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Related Classes of org.apache.hadoop.hive.ql.plan.StatsWork

  • org.apache.hadoop.hive.ql.optimizer.GenMapRedUtils
  • org.apache.hadoop.hive.ql.optimizer.GenMRFileSink1
  • org.apache.hadoop.hive.ql.optimizer.GenMRTableScan1
  • org.apache.hadoop.hive.ql.parse.DDLSemanticAnalyzer
  • org.apache.hadoop.hive.ql.parse.LoadSemanticAnalyzer
  • org.apache.hadoop.hive.ql.parse.ProcessAnalyzeTable
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