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1. New scheduler only support the broker load now. 2. The stage of load consist of PENDING -> LOADING -> FINISHED 3. The LoadScheduler will divide job into a pending task. There are preparations that need to be done on pending task. 4. OnPendingTaskFinished will be invoked after pending task. It is used to submit the loading task which is created based on attachment of pending task. 5. OnLoadingTaskFinished will be invoked after loding task. It is used to record the commit info and commit txn when all of task has been finished. .
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fe/src/main/java/org/apache/doris/load/loadv2/BrokerLoadJob.java
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| /* | ||
| * 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. | ||
| * | ||
| */ | ||
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| package org.apache.doris.load.loadv2; | ||
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| import org.apache.doris.analysis.BrokerDesc; | ||
| import org.apache.doris.analysis.DataDescription; | ||
| import org.apache.doris.analysis.LoadStmt; | ||
| import org.apache.doris.catalog.Catalog; | ||
| import org.apache.doris.catalog.Database; | ||
| import org.apache.doris.catalog.OlapTable; | ||
| import org.apache.doris.common.Config; | ||
| import org.apache.doris.common.DdlException; | ||
| import org.apache.doris.common.MetaNotFoundException; | ||
| import org.apache.doris.common.UserException; | ||
| import org.apache.doris.common.util.LogBuilder; | ||
| import org.apache.doris.common.util.LogKey; | ||
| import org.apache.doris.load.BrokerFileGroup; | ||
| import org.apache.doris.load.FailMsg; | ||
| import org.apache.doris.load.PullLoadSourceInfo; | ||
| import org.apache.doris.thrift.TEtlState; | ||
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| import org.apache.logging.log4j.LogManager; | ||
| import org.apache.logging.log4j.Logger; | ||
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| import java.util.List; | ||
| import java.util.Map; | ||
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| public class BrokerLoadJob extends LoadJob { | ||
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| private static final Logger LOG = LogManager.getLogger(BrokerLoadJob.class); | ||
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| private BrokerDesc brokerDesc; | ||
| // include broker desc and data desc | ||
| private PullLoadSourceInfo dataSourceInfo = new PullLoadSourceInfo(); | ||
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| public BrokerLoadJob(long dbId, String label, BrokerDesc brokerDesc) { | ||
| super(dbId, label); | ||
| this.timeoutSecond = Config.pull_load_task_default_timeout_second; | ||
| this.brokerDesc = brokerDesc; | ||
| } | ||
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| public static BrokerLoadJob fromLoadStmt(LoadStmt stmt) throws DdlException { | ||
| // get db id | ||
| String dbName = stmt.getLabel().getDbName(); | ||
| Database db = Catalog.getInstance().getDb(stmt.getLabel().getDbName()); | ||
| if (db == null) { | ||
| throw new DdlException("Database[" + dbName + "] does not exist"); | ||
| } | ||
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| // create job | ||
| BrokerLoadJob brokerLoadJob = new BrokerLoadJob(db.getId(), stmt.getLabel().getLabelName(), | ||
| stmt.getBrokerDesc()); | ||
| brokerLoadJob.setJobProperties(stmt.getProperties()); | ||
| brokerLoadJob.setLoadInfo(db, stmt.getDataDescriptions()); | ||
| brokerLoadJob.setDataSourceInfo(db, stmt.getDataDescriptions()); | ||
| return brokerLoadJob; | ||
| } | ||
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| private void setDataSourceInfo(Database db, List<DataDescription> dataDescriptions) throws DdlException { | ||
| for (DataDescription dataDescription : dataDescriptions) { | ||
| BrokerFileGroup fileGroup = new BrokerFileGroup(dataDescription, brokerDesc); | ||
| fileGroup.parse(db); | ||
| dataSourceInfo.addFileGroup(fileGroup); | ||
| } | ||
| LOG.info("Source info is {}", dataSourceInfo); | ||
| } | ||
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| @Override | ||
| public void createPendingTask() { | ||
| loadPendingTask = new BrokerLoadPendingTask(this, dataSourceInfo.getIdToFileGroups(), brokerDesc); | ||
| } | ||
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| /** | ||
| * divide job into loading task and init the plan of task | ||
| * submit tasks into loadingTaskExecutor in LoadManager | ||
| * | ||
| * @param attachment | ||
| */ | ||
| @Override | ||
| public void onPendingTaskFinished(LoadPendingTaskAttachment attachment) { | ||
| // TODO(ml): check if task has been cancelled | ||
| BrokerPendingTaskAttachment brokerPendingTaskAttachment = (BrokerPendingTaskAttachment) attachment; | ||
| Database db = null; | ||
| try { | ||
| getDb(); | ||
| } catch (MetaNotFoundException e) { | ||
| LOG.warn(new LogBuilder(LogKey.LOAD_JOB, id) | ||
| .add("database_id", dbId) | ||
| .add("error_msg", "Failed to divide job into loading task when db not found.") | ||
| .build(), e); | ||
| updateState(JobState.CANCELLED, FailMsg.CancelType.ETL_RUN_FAIL, "db does not exist. id: " + dbId); | ||
| return; | ||
| } | ||
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| // divide job into broker loading task by table | ||
| db.readLock(); | ||
| try { | ||
| // tableId -> BrokerFileGroups | ||
| for (Map.Entry<Long, List<BrokerFileGroup>> entry : | ||
| dataSourceInfo.getIdToFileGroups().entrySet()) { | ||
| long tableId = entry.getKey(); | ||
| OlapTable table = (OlapTable) db.getTable(tableId); | ||
| if (table == null) { | ||
| LOG.warn(new LogBuilder(LogKey.LOAD_JOB, id) | ||
| .add("database_id", dbId) | ||
| .add("table_id", tableId) | ||
| .add("error_msg", "Failed to divide job into loading task when table not found") | ||
| .build()); | ||
| updateState(JobState.CANCELLED, FailMsg.CancelType.ETL_RUN_FAIL, | ||
| "Unknown table(" + tableId + ") in database(" + db.getFullName() + ")"); | ||
| return; | ||
| } | ||
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| // Generate pull load task, one | ||
| LoadLoadingTask task = new LoadLoadingTask(db, table, brokerDesc, | ||
| entry.getValue(), getDeadlineMs(), execMemLimit, | ||
| transactionId, this); | ||
| task.init(brokerPendingTaskAttachment.getFileStatusByTable(tableId), | ||
| brokerPendingTaskAttachment.getFileNumByTable(tableId)); | ||
| loadLoadingTaskList.add(task); | ||
| Catalog.getCurrentCatalog().getLoadManager().submitLoadingTask(task); | ||
| } | ||
| } catch (UserException e) { | ||
| updateState(JobState.CANCELLED, FailMsg.CancelType.ETL_RUN_FAIL, "failed to " + e.getMessage()); | ||
| } finally { | ||
| db.readUnlock(); | ||
| } | ||
| loadStartTimestamp = System.currentTimeMillis(); | ||
| } | ||
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| @Override | ||
| public void onPendingTaskFailed(String errMsg) { | ||
| // TODO(ml): check if task has been cancelled | ||
| updateState(JobState.CANCELLED, FailMsg.CancelType.ETL_RUN_FAIL, errMsg); | ||
| } | ||
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| @Override | ||
| public void onLoadingTaskFinished(LoadLoadingTaskAttachment attachment) { | ||
| // TODO(ml): check if task has been cancelled | ||
| boolean commitTxn = false; | ||
| writeLock(); | ||
| try { | ||
| // update loading status | ||
| unprotectedUpdateLoadingStatus((BrokerLoadingTaskAttachment) attachment); | ||
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| // begin commit txn when all of loading tasks have been finished | ||
| if (loadLoadingTaskList.size() == loadLoadingTaskList.stream() | ||
| .filter(entity -> entity.isFinished()).count()) { | ||
| // check data quality | ||
| if (!checkDataQuality()) { | ||
| unprotectedUpdateState(JobState.CANCELLED, FailMsg.CancelType.ETL_QUALITY_UNSATISFIED, | ||
| QUALITY_FAIL_MSG); | ||
| } else { | ||
| commitTxn = true; | ||
| } | ||
| } | ||
| } finally { | ||
| writeUnlock(); | ||
| } | ||
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| Database db = null; | ||
| try { | ||
| getDb(); | ||
| } catch (MetaNotFoundException e) { | ||
| LOG.warn(new LogBuilder(LogKey.LOAD_JOB, id) | ||
| .add("database_id", dbId) | ||
| .add("error_msg", "Failed to divide job into loading task when db not found.") | ||
| .build(), e); | ||
| updateState(JobState.CANCELLED, FailMsg.CancelType.ETL_RUN_FAIL, "db does not exist. id: " + dbId); | ||
| return; | ||
| } | ||
| if (commitTxn) { | ||
| try { | ||
| Catalog.getCurrentGlobalTransactionMgr().commitAndPublishTransaction( | ||
| db, transactionId, commitInfos, getLeftTimeMs()); | ||
| } catch (UserException e) { | ||
| updateState(JobState.CANCELLED, FailMsg.CancelType.LOAD_RUN_FAIL, "failed to " + e.getMessage()); | ||
| } | ||
| } | ||
| } | ||
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| @Override | ||
| public void onLoadingTaskFailed(String errMsg) { | ||
| // TODO(ml): check if task has been cancelled | ||
| writeLock(); | ||
| try { | ||
| // clean the loadingStatus | ||
| loadingStatus.reset(); | ||
| loadingStatus.setState(TEtlState.CANCELLED); | ||
| LOG.warn(new LogBuilder(LogKey.LOAD_JOB, id) | ||
| .add("error_msg", "Failed to execute load plan with error " + errMsg) | ||
| .build()); | ||
| // cancel the job | ||
| unprotectedUpdateState(JobState.CANCELLED, FailMsg.CancelType.ETL_RUN_FAIL, errMsg); | ||
| return; | ||
| } finally { | ||
| writeUnlock(); | ||
| } | ||
| } | ||
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| private void unprotectedUpdateLoadingStatus(BrokerLoadingTaskAttachment attachment) { | ||
| loadingStatus.updateCounter(DPP_ABNORMAL_ALL, | ||
| increaseCounter(DPP_ABNORMAL_ALL, attachment.getCounter(DPP_ABNORMAL_ALL))); | ||
| loadingStatus.updateCounter(DPP_NORMAL_ALL, | ||
| increaseCounter(DPP_NORMAL_ALL, attachment.getCounter(DPP_NORMAL_ALL))); | ||
| if (attachment.getTrackingUrl() != null) { | ||
| loadingStatus.setTrackingUrl(attachment.getTrackingUrl()); | ||
| } | ||
| loadingStatus.addAllFileMap(attachment.getFileMap()); | ||
| commitInfos.addAll(attachment.getCommitInfoList()); | ||
| int finishedLoadingTaskNum = (int) loadLoadingTaskList.stream().filter(entity -> entity.isFinished()).count(); | ||
| progress = finishedLoadingTaskNum / loadLoadingTaskList.size() * 100; | ||
| if (progress == 100) { | ||
| progress = 99; | ||
| } | ||
| } | ||
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| private String increaseCounter(String key, String deltaValue) { | ||
| long value = Long.valueOf(loadingStatus.getCounters().get(key)); | ||
| if (deltaValue != null) { | ||
| value += Long.valueOf(deltaValue); | ||
| } | ||
| return String.valueOf(value); | ||
| } | ||
| } |
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