Merge remote-tracking branch 'apache/master' into SPARK-6542

core/src/main/scala/org/apache/spark/SparkStatusTracker.scala

@@ -45,8 +45,7 @@ class SparkStatusTracker private[spark] (sc: SparkContext) {
    */
   def getJobIdsForGroup(jobGroup: String): Array[Int] = {
     jobProgressListener.synchronized {
-      val jobData = jobProgressListener.jobIdToData.valuesIterator
-      jobData.filter(_.jobGroup.orNull == jobGroup).map(_.jobId).toArray
+      jobProgressListener.jobGroupToJobIds.getOrElse(jobGroup, Seq.empty).toArray
     }
   }
 

core/src/main/scala/org/apache/spark/ui/jobs/JobProgressListener.scala

@@ -44,6 +44,7 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
   // These type aliases are public because they're used in the types of public fields:
 
   type JobId = Int
+  type JobGroupId = String
   type StageId = Int
   type StageAttemptId = Int
   type PoolName = String
@@ -54,6 +55,7 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
   val completedJobs = ListBuffer[JobUIData]()
   val failedJobs = ListBuffer[JobUIData]()
   val jobIdToData = new HashMap[JobId, JobUIData]
+  val jobGroupToJobIds = new HashMap[JobGroupId, HashSet[JobId]]
 
   // Stages:
   val pendingStages = new HashMap[StageId, StageInfo]
@@ -119,7 +121,10 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
     Map(
       "jobIdToData" -> jobIdToData.size,
       "stageIdToData" -> stageIdToData.size,
-      "stageIdToStageInfo" -> stageIdToInfo.size
+      "stageIdToStageInfo" -> stageIdToInfo.size,
+      "jobGroupToJobIds" -> jobGroupToJobIds.values.map(_.size).sum,
+      // Since jobGroupToJobIds is map of sets, check that we don't leak keys with empty values:
+      "jobGroupToJobIds keySet" -> jobGroupToJobIds.keys.size
     )
   }
 
@@ -140,7 +145,19 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
     if (jobs.size > retainedJobs) {
       val toRemove = math.max(retainedJobs / 10, 1)
       jobs.take(toRemove).foreach { job =>
-        jobIdToData.remove(job.jobId)
+        // Remove the job's UI data, if it exists
+        jobIdToData.remove(job.jobId).foreach { removedJob =>
+          // A null jobGroupId is used for jobs that are run without a job group
+          val jobGroupId = removedJob.jobGroup.orNull
+          // Remove the job group -> job mapping entry, if it exists
+          jobGroupToJobIds.get(jobGroupId).foreach { jobsInGroup =>
+            jobsInGroup.remove(job.jobId)
+            // If this was the last job in this job group, remove the map entry for the job group
+            if (jobsInGroup.isEmpty) {
+              jobGroupToJobIds.remove(jobGroupId)
+            }
+          }
+        }
       }
       jobs.trimStart(toRemove)
     }
@@ -158,6 +175,8 @@ class JobProgressListener(conf: SparkConf) extends SparkListener with Logging {
         stageIds = jobStart.stageIds,
         jobGroup = jobGroup,
         status = JobExecutionStatus.RUNNING)
+    // A null jobGroupId is used for jobs that are run without a job group
+    jobGroupToJobIds.getOrElseUpdate(jobGroup.orNull, new HashSet[JobId]).add(jobStart.jobId)
     jobStart.stageInfos.foreach(x => pendingStages(x.stageId) = x)
     // Compute (a potential underestimate of) the number of tasks that will be run by this job.
     // This may be an underestimate because the job start event references all of the result

core/src/test/scala/org/apache/spark/ui/jobs/JobProgressListenerSuite.scala

@@ -17,6 +17,8 @@
 
 package org.apache.spark.ui.jobs
 
+import java.util.Properties
+
 import org.scalatest.FunSuite
 import org.scalatest.Matchers
 
@@ -44,11 +46,19 @@ class JobProgressListenerSuite extends FunSuite with LocalSparkContext with Matc
     SparkListenerStageCompleted(stageInfo)
   }
 
-  private def createJobStartEvent(jobId: Int, stageIds: Seq[Int]) = {
+  private def createJobStartEvent(
+      jobId: Int,
+      stageIds: Seq[Int],
+      jobGroup: Option[String] = None): SparkListenerJobStart = {
     val stageInfos = stageIds.map { stageId =>
       new StageInfo(stageId, 0, stageId.toString, 0, null, "")
     }
-    SparkListenerJobStart(jobId, jobSubmissionTime, stageInfos)
+    val properties: Option[Properties] = jobGroup.map { groupId =>
+      val props = new Properties()
+      props.setProperty(SparkContext.SPARK_JOB_GROUP_ID, groupId)
+      props
+    }
+    SparkListenerJobStart(jobId, jobSubmissionTime, stageInfos, properties.orNull)
   }
 
   private def createJobEndEvent(jobId: Int, failed: Boolean = false) = {
@@ -110,6 +120,23 @@ class JobProgressListenerSuite extends FunSuite with LocalSparkContext with Matc
     listener.stageIdToActiveJobIds.size should be (0)
   }
 
+  test("test clearing of jobGroupToJobIds") {
+    val conf = new SparkConf()
+    conf.set("spark.ui.retainedJobs", 5.toString)
+    val listener = new JobProgressListener(conf)
+
+    // Run 50 jobs, each with one stage
+    for (jobId <- 0 to 50) {
+      listener.onJobStart(createJobStartEvent(jobId, Seq(0), jobGroup = Some(jobId.toString)))
+      listener.onStageSubmitted(createStageStartEvent(0))
+      listener.onStageCompleted(createStageEndEvent(0, failed = false))
+      listener.onJobEnd(createJobEndEvent(jobId, false))
+    }
+    assertActiveJobsStateIsEmpty(listener)
+    // This collection won't become empty, but it should be bounded by spark.ui.retainedJobs
+    listener.jobGroupToJobIds.size should be (5)
+  }
+
   test("test LRU eviction of jobs") {
     val conf = new SparkConf()
     conf.set("spark.ui.retainedStages", 5.toString)

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/AttributeSet.scala

@@ -58,7 +58,8 @@ class AttributeSet private (val baseSet: Set[AttributeEquals])
 
   /** Returns true if the members of this AttributeSet and other are the same. */
   override def equals(other: Any): Boolean = other match {
-    case otherSet: AttributeSet => baseSet.map(_.a).forall(otherSet.contains)
+    case otherSet: AttributeSet =>
+      otherSet.size == baseSet.size && baseSet.map(_.a).forall(otherSet.contains)
     case _ => false
   }
 

sql/catalyst/src/main/scala/org/apache/spark/sql/catalyst/expressions/Cast.scala

@@ -394,10 +394,17 @@ case class Cast(child: Expression, dataType: DataType) extends UnaryExpression w
     val casts = from.fields.zip(to.fields).map {
       case (fromField, toField) => cast(fromField.dataType, toField.dataType)
     }
-    // TODO: This is very slow!
-    buildCast[Row](_, row => Row(row.toSeq.zip(casts).map {
-      case (v, cast) => if (v == null) null else cast(v)
-    }: _*))
+    // TODO: Could be faster?
+    val newRow = new GenericMutableRow(from.fields.size)
+    buildCast[Row](_, row => {
+      var i = 0
+      while (i < row.length) {
+        val v = row(i)
+        newRow.update(i, if (v == null) null else casts(i)(v))
+        i += 1
+      }
+      newRow.copy()
+    })
   }
 
   private[this] def cast(from: DataType, to: DataType): Any => Any = to match {

sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/expressions/AttributeSetSuite.scala

@@ -0,0 +1,82 @@
+/*
+ * 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.spark.sql.catalyst.expressions
+
+import org.scalatest.FunSuite
+
+import org.apache.spark.sql.types.IntegerType
+
+class AttributeSetSuite extends FunSuite {
+
+  val aUpper = AttributeReference("A", IntegerType)(exprId = ExprId(1))
+  val aLower = AttributeReference("a", IntegerType)(exprId = ExprId(1))
+  val fakeA = AttributeReference("a", IntegerType)(exprId = ExprId(3))
+  val aSet = AttributeSet(aLower :: Nil)
+
+  val bUpper = AttributeReference("B", IntegerType)(exprId = ExprId(2))
+  val bLower = AttributeReference("b", IntegerType)(exprId = ExprId(2))
+  val bSet = AttributeSet(bUpper :: Nil)
+
+  val aAndBSet = AttributeSet(aUpper :: bUpper :: Nil)
+
+  test("sanity check") {
+    assert(aUpper != aLower)
+    assert(bUpper != bLower)
+  }
+
+  test("checks by id not name") {
+    assert(aSet.contains(aUpper) === true)
+    assert(aSet.contains(aLower) === true)
+    assert(aSet.contains(fakeA) === false)
+
+    assert(aSet.contains(bUpper) === false)
+    assert(aSet.contains(bLower) === false)
+  }
+
+  test("++ preserves AttributeSet")  {
+    assert((aSet ++ bSet).contains(aUpper) === true)
+    assert((aSet ++ bSet).contains(aLower) === true)
+  }
+
+  test("extracts all references references") {
+    val addSet = AttributeSet(Add(aUpper, Alias(bUpper, "test")()):: Nil)
+    assert(addSet.contains(aUpper))
+    assert(addSet.contains(aLower))
+    assert(addSet.contains(bUpper))
+    assert(addSet.contains(bLower))
+  }
+
+  test("dedups attributes") {
+    assert(AttributeSet(aUpper :: aLower :: Nil).size === 1)
+  }
+
+  test("subset") {
+    assert(aSet.subsetOf(aAndBSet) === true)
+    assert(aAndBSet.subsetOf(aSet) === false)
+  }
+
+  test("equality") {
+    assert(aSet != aAndBSet)
+    assert(aAndBSet != aSet)
+    assert(aSet != bSet)
+    assert(bSet != aSet)
+
+    assert(aSet == aSet)
+    assert(aSet == AttributeSet(aUpper :: Nil))
+  }
+}

sql/hive/src/main/scala/org/apache/spark/sql/hive/HiveMetastoreCatalog.scala

@@ -459,7 +459,7 @@ private[hive] class HiveMetastoreCatalog(hive: HiveContext) extends Catalog with
               relation.tableDesc.getSerdeClassName.toLowerCase.contains("parquet") =>
           val parquetRelation = convertToParquetRelation(relation)
           val attributedRewrites = relation.output.zip(parquetRelation.output)
-          (relation, parquetRelation, attributedRewrites)
+          (relation -> relation.output, parquetRelation, attributedRewrites)
 
         // Write path
         case InsertIntoHiveTable(relation: MetastoreRelation, _, _, _)
@@ -470,7 +470,7 @@ private[hive] class HiveMetastoreCatalog(hive: HiveContext) extends Catalog with
             relation.tableDesc.getSerdeClassName.toLowerCase.contains("parquet") =>
           val parquetRelation = convertToParquetRelation(relation)
           val attributedRewrites = relation.output.zip(parquetRelation.output)
-          (relation, parquetRelation, attributedRewrites)
+          (relation -> relation.output, parquetRelation, attributedRewrites)
 
         // Read path
         case p @ PhysicalOperation(_, _, relation: MetastoreRelation)
@@ -479,33 +479,35 @@ private[hive] class HiveMetastoreCatalog(hive: HiveContext) extends Catalog with
               relation.tableDesc.getSerdeClassName.toLowerCase.contains("parquet") =>
           val parquetRelation = convertToParquetRelation(relation)
           val attributedRewrites = relation.output.zip(parquetRelation.output)
-          (relation, parquetRelation, attributedRewrites)
+          (relation -> relation.output, parquetRelation, attributedRewrites)
       }
 
+      // Quick fix for SPARK-6450: Notice that we're using both the MetastoreRelation instances and
+      // their output attributes as the key of the map. This is because MetastoreRelation.equals
+      // doesn't take output attributes into account, thus multiple MetastoreRelation instances
+      // pointing to the same table get collapsed into a single entry in the map. A proper fix for
+      // this should be overriding equals & hashCode in MetastoreRelation.
       val relationMap = toBeReplaced.map(r => (r._1, r._2)).toMap
       val attributedRewrites = AttributeMap(toBeReplaced.map(_._3).fold(Nil)(_ ++: _))
 
       // Replaces all `MetastoreRelation`s with corresponding `ParquetRelation2`s, and fixes
       // attribute IDs referenced in other nodes.
       plan.transformUp {
-        case r: MetastoreRelation if relationMap.contains(r) => {
-          val parquetRelation = relationMap(r)
-          val withAlias =
-            r.alias.map(a => Subquery(a, parquetRelation)).getOrElse(
-              Subquery(r.tableName, parquetRelation))
+        case r: MetastoreRelation if relationMap.contains(r -> r.output) =>
+          val parquetRelation = relationMap(r -> r.output)
+          val alias = r.alias.getOrElse(r.tableName)
+          Subquery(alias, parquetRelation)
 
-          withAlias
-        }
         case InsertIntoTable(r: MetastoreRelation, partition, child, overwrite)
-          if relationMap.contains(r) => {
-          val parquetRelation = relationMap(r)
+          if relationMap.contains(r -> r.output) =>
+          val parquetRelation = relationMap(r -> r.output)
           InsertIntoTable(parquetRelation, partition, child, overwrite)
-        }
+
         case InsertIntoHiveTable(r: MetastoreRelation, partition, child, overwrite)
-          if relationMap.contains(r) => {
-          val parquetRelation = relationMap(r)
+          if relationMap.contains(r -> r.output) =>
+          val parquetRelation = relationMap(r -> r.output)
           InsertIntoTable(parquetRelation, partition, child, overwrite)
-        }
+
         case other => other.transformExpressions {
           case a: Attribute if a.resolved => attributedRewrites.getOrElse(a, a)
         }