[Enhancement] merge full/sample statistics collect #52693
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| // Copyright 2021-present StarRocks, Inc. All rights reserved. | ||
| // | ||
| // Licensed 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 | ||
| // | ||
| // https://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 com.starrocks.statistic; | ||
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| import com.google.common.collect.Lists; | ||
| import com.starrocks.analysis.Expr; | ||
| import com.starrocks.analysis.TableName; | ||
| import com.starrocks.catalog.Database; | ||
| import com.starrocks.catalog.OlapTable; | ||
| import com.starrocks.catalog.Table; | ||
| import com.starrocks.catalog.Type; | ||
| import com.starrocks.common.Config; | ||
| import com.starrocks.common.DdlException; | ||
| import com.starrocks.common.util.DebugUtil; | ||
| import com.starrocks.common.util.UUIDUtil; | ||
| import com.starrocks.qe.ConnectContext; | ||
| import com.starrocks.qe.OriginStatement; | ||
| import com.starrocks.qe.QueryState; | ||
| import com.starrocks.qe.StmtExecutor; | ||
| import com.starrocks.server.GlobalStateMgr; | ||
| import com.starrocks.sql.ast.InsertStmt; | ||
| import com.starrocks.sql.ast.QueryStatement; | ||
| import com.starrocks.sql.ast.StatementBase; | ||
| import com.starrocks.sql.ast.ValuesRelation; | ||
| import com.starrocks.statistic.base.PartitionSampler; | ||
| import com.starrocks.statistic.hyper.HyperQueryJob; | ||
| import org.apache.commons.lang.StringUtils; | ||
| 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 HyperStatisticsCollectJob extends StatisticsCollectJob { | ||
|
There was a problem hiding this comment.
There was a problem hiding this comment. I think is hyper, because Full/Sample always use it |
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| private static final Logger LOG = LogManager.getLogger(HyperStatisticsCollectJob.class); | ||
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| private final List<Long> partitionIdList; | ||
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| private final int batchRowsLimit; | ||
| private final List<String> sqlBuffer = Lists.newArrayList(); | ||
| private final List<List<Expr>> rowsBuffer = Lists.newArrayList(); | ||
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| public HyperStatisticsCollectJob(Database db, Table table, List<Long> partitionIdList, List<String> columnNames, | ||
| List<Type> columnTypes, StatsConstants.AnalyzeType type, | ||
| StatsConstants.ScheduleType scheduleType, Map<String, String> properties) { | ||
| super(db, table, columnNames, columnTypes, type, scheduleType, properties); | ||
| this.partitionIdList = partitionIdList; | ||
| this.batchRowsLimit = (int) Math.max(1, Config.statistic_full_collect_buffer / 33 / 1024); | ||
| } | ||
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| @Override | ||
| public void collect(ConnectContext context, AnalyzeStatus analyzeStatus) throws Exception { | ||
| if (table.isTemporaryTable()) { | ||
| context.setSessionId(((OlapTable) table).getSessionId()); | ||
| } | ||
| context.getSessionVariable().setEnableAnalyzePhasePruneColumns(true); | ||
|
There was a problem hiding this comment. is it necessary to restore these variables? what if the connection is reused by other jobs ? There was a problem hiding this comment. I think don't need, because ConnectContext of statistics is create by itself |
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| context.getSessionVariable().setPipelineDop(context.getSessionVariable().getStatisticCollectParallelism()); | ||
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| int splitSize = Math.max(1, batchRowsLimit / columnNames.size()); | ||
| List<HyperQueryJob> queryJobs; | ||
| if (type == StatsConstants.AnalyzeType.FULL) { | ||
| queryJobs = HyperQueryJob.createFullQueryJobs(context, db, table, columnNames, columnTypes, | ||
| partitionIdList, splitSize); | ||
| } else { | ||
| PartitionSampler sampler = PartitionSampler.create(table, partitionIdList, properties); | ||
| queryJobs = HyperQueryJob.createSampleQueryJobs(context, db, table, columnNames, columnTypes, | ||
| partitionIdList, splitSize, sampler); | ||
| } | ||
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| long queryTotals = 0; | ||
| long queryFailures = 0; | ||
| long insertFailures = 0; | ||
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| for (int i = 0; i < queryJobs.size(); i++) { | ||
| HyperQueryJob queryJob = queryJobs.get(i); | ||
| try { | ||
| queryJob.queryStatistics(); | ||
| rowsBuffer.addAll(queryJob.getStatisticsData()); | ||
| sqlBuffer.addAll(queryJob.getStatisticsValueSQL()); | ||
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| queryTotals += queryJob.getTotals(); | ||
| queryFailures += queryJob.getFailures(); | ||
| } catch (Exception e) { | ||
| LOG.warn("query statistics task failed in job: {}, {}", this, queryJob, e); | ||
| throw e; | ||
| } | ||
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| if (queryFailures > Config.statistic_full_statistics_failure_tolerance_ratio * queryTotals) { | ||
| String message = String.format("query statistic job failed due to " + | ||
| "too many failed tasks: %d/%d, the last failure is %s", | ||
| queryFailures, queryTotals, queryJob.getLastFailure()); | ||
| LOG.warn(message, queryJob.getLastFailure()); | ||
| throw new RuntimeException(message, queryJob.getLastFailure()); | ||
| } | ||
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| try { | ||
| flushInsertStatisticsData(context); | ||
| } catch (Exception e) { | ||
| insertFailures++; | ||
| if (insertFailures > Config.statistic_full_statistics_failure_tolerance_ratio * queryJobs.size()) { | ||
| String message = String.format("insert statistic job failed due to " + | ||
| "too many failed tasks: %d/%d, the last failure is %s", | ||
| insertFailures, queryJobs.size(), e); | ||
| LOG.warn(message, queryJob.getLastFailure()); | ||
| throw new RuntimeException(message, queryJob.getLastFailure()); | ||
| } else { | ||
| LOG.warn("insert statistics task failed in job: {}, {}", this, queryJob, e); | ||
| } | ||
| } finally { | ||
| rowsBuffer.clear(); | ||
| sqlBuffer.clear(); | ||
| } | ||
| analyzeStatus.setProgress((i + 1) * 100L / queryJobs.size()); | ||
| GlobalStateMgr.getCurrentState().getAnalyzeMgr().addAnalyzeStatus(analyzeStatus); | ||
| } | ||
| } | ||
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| private void flushInsertStatisticsData(ConnectContext context) throws Exception { | ||
| if (rowsBuffer.isEmpty()) { | ||
| return; | ||
| } | ||
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| int count = 0; | ||
| int maxRetryTimes = 5; | ||
| StatementBase insertStmt = createInsertStmt(); | ||
| do { | ||
| LOG.debug("statistics insert sql size:" + rowsBuffer.size()); | ||
| StmtExecutor executor = new StmtExecutor(context, insertStmt); | ||
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| context.setExecutor(executor); | ||
| context.setQueryId(UUIDUtil.genUUID()); | ||
| context.setStartTime(); | ||
| executor.execute(); | ||
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| if (context.getState().getStateType() == QueryState.MysqlStateType.ERR) { | ||
| LOG.warn("Statistics insert fail | {} | Error Message [{}]", DebugUtil.printId(context.getQueryId()), | ||
| context.getState().getErrorMessage()); | ||
| if (StringUtils.contains(context.getState().getErrorMessage(), "Too many versions")) { | ||
| Thread.sleep(Config.statistic_collect_too_many_version_sleep); | ||
| count++; | ||
| } else { | ||
| throw new DdlException(context.getState().getErrorMessage()); | ||
| } | ||
| } else { | ||
| return; | ||
| } | ||
| } while (count < maxRetryTimes); | ||
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| throw new DdlException(context.getState().getErrorMessage()); | ||
| } | ||
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| private StatementBase createInsertStmt() { | ||
| String sql = "INSERT INTO _statistics_.column_statistics values " + String.join(", ", sqlBuffer) + ";"; | ||
| List<String> names = Lists.newArrayList("column_0", "column_1", "column_2", "column_3", | ||
| "column_4", "column_5", "column_6", "column_7", "column_8", "column_9", | ||
| "column_10", "column_11", "column_12"); | ||
| QueryStatement qs = new QueryStatement(new ValuesRelation(rowsBuffer, names)); | ||
| InsertStmt insert = new InsertStmt(new TableName("_statistics_", "column_statistics"), qs); | ||
| insert.setOrigStmt(new OriginStatement(sql, 0)); | ||
| return insert; | ||
| } | ||
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| @Override | ||
| public String toString() { | ||
| return "HyperStatisticsCollectJob{" + "type=" + type + | ||
| ", scheduleType=" + scheduleType + | ||
| ", db=" + db + | ||
| ", table=" + table + | ||
| ", partitionIdList=" + partitionIdList + | ||
| ", columnNames=" + columnNames + | ||
| ", properties=" + properties + | ||
| '}'; | ||
| } | ||
| } | ||
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can you put some comment on it ?
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it's temp config on main, I will remove it in next PR