spark SparkPlanInfo 源码
spark SparkPlanInfo 代码
文件路径：/sql/core/src/main/scala/org/apache/spark/sql/execution/SparkPlanInfo.scala
/*
* 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.spark.sql.execution
import org.apache.spark.annotation.DeveloperApi
import org.apache.spark.sql.execution.adaptive.{AdaptiveSparkPlanExec, QueryStageExec}
import org.apache.spark.sql.execution.columnar.InMemoryTableScanExec
import org.apache.spark.sql.execution.exchange.ReusedExchangeExec
import org.apache.spark.sql.execution.metric.SQLMetricInfo
import org.apache.spark.sql.internal.SQLConf
/**
* :: DeveloperApi ::
* Stores information about a SQL SparkPlan.
*/
@DeveloperApi
class SparkPlanInfo(
val nodeName: String,
val simpleString: String,
val children: Seq[SparkPlanInfo],
val metadata: Map[String, String],
val metrics: Seq[SQLMetricInfo]) {
override def hashCode(): Int = {
// hashCode of simpleString should be good enough to distinguish the plans from each other
// within a plan
simpleString.hashCode
}
override def equals(other: Any): Boolean = other match {
case o: SparkPlanInfo =>
nodeName == o.nodeName && simpleString == o.simpleString && children == o.children
case _ => false
}
}
private[execution] object SparkPlanInfo {
def fromSparkPlan(plan: SparkPlan): SparkPlanInfo = {
val children = plan match {
case ReusedExchangeExec(_, child) => child :: Nil
case ReusedSubqueryExec(child) => child :: Nil
case a: AdaptiveSparkPlanExec => a.executedPlan :: Nil
case stage: QueryStageExec => stage.plan :: Nil
case inMemTab: InMemoryTableScanExec => inMemTab.relation.cachedPlan :: Nil
case _ => plan.children ++ plan.subqueries
}
val metrics = plan.metrics.toSeq.map { case (key, metric) =>
new SQLMetricInfo(metric.name.getOrElse(key), metric.id, metric.metricType)
}
// dump the file scan metadata (e.g file path) to event log
val metadata = plan match {
case fileScan: FileSourceScanExec => fileScan.metadata
case _ => Map[String, String]()
}
new SparkPlanInfo(
plan.nodeName,
plan.simpleString(SQLConf.get.maxToStringFields),
children.map(fromSparkPlan),
metadata,
metrics)
}
}
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