Spark批量插入到MS-SQL

Question

我有一个关于Hive的表，其中包含920 649 653条记录。我想在MS-SQL中插入该表。

我使用azure-sqldb-spark lib。

spark2-shell --master = yarn --jars azure-sqldb-spark-1.0.2-jar-with-dependencies.jar

import com.microsoft.azure.sqldb.spark.bulkcopy.BulkCopyMetadata
import com.microsoft.azure.sqldb.spark.config.Config
import com.microsoft.azure.sqldb.spark.connect._

var bulkCopyMetadata = new BulkCopyMetadata
bulkCopyMetadata.addColumnMetadata(1, "Id_Util_Donnees_Texte", java.sql.Types.INTEGER, 0, 0)
bulkCopyMetadata.addColumnMetadata(2, "Id_Util", java.sql.Types.INTEGER, 0, 0)
bulkCopyMetadata.addColumnMetadata(3, "Id_From", java.sql.Types.INTEGER, 0, 0)
bulkCopyMetadata.addColumnMetadata(4, "IdD", java.sql.Types.INTEGER, 0, 0)
bulkCopyMetadata.addColumnMetadata(5, "Valeur", java.sql.Types.NVARCHAR, 8000, 0)
bulkCopyMetadata.addColumnMetadata(6, "dCollecte", java.sql.Types.TIMESTAMP, 0, 0)
bulkCopyMetadata.addColumnMetadata(7, "dInsertion", java.sql.Types.TIMESTAMP, 0, 0)
bulkCopyMetadata.addColumnMetadata(8, "dMAJ", java.sql.Types.TIMESTAMP, 0, 0)
bulkCopyMetadata.addColumnMetadata(9, "id_marque", java.sql.Types.INTEGER, 0, 0)


val df = spark.table("analyses_tmp.import_sofinco_Util_last_Donnees_Texte").coalesce(10)


val bulkCopyConfig = Config(Map(
  "url"               -> "db_url",
  "user"              -> "user",
  "password"          -> "*******",
  "databaseName"      -> "Hadoop",
  "dbTable"           -> "dbo.Util_Last_Donnees_Texte",
  "bulkCopyBatchSize" -> "4000",
  "bulkCopyTableLock" -> "false",
  "bulkCopyTimeout"   -> "6000"
))

df.bulkCopyToSqlDB(bulkCopyConfig, bulkCopyMetadata)

2小时后，我收到此错误，整个插件回滚：

9/04/11 20:17:22 ERROR cluster.YarnClientSchedulerBackend: Yarn application has already exited with state FINISHED!
org.apache.spark.SparkException: Job 1 cancelled because SparkContext was shut down
  at org.apache.spark.scheduler.DAGScheduler$$anonfun$cleanUpAfterSchedulerStop$1.apply(DAGScheduler.scala:837)
  at org.apache.spark.scheduler.DAGScheduler$$anonfun$cleanUpAfterSchedulerStop$1.apply(DAGScheduler.scala:835)
  at scala.collection.mutable.HashSet.foreach(HashSet.scala:78)
  at org.apache.spark.scheduler.DAGScheduler.cleanUpAfterSchedulerStop(DAGScheduler.scala:835)
  at org.apache.spark.scheduler.DAGSchedulerEventProcessLoop.onStop(DAGScheduler.scala:1848)
  at org.apache.spark.util.EventLoop.stop(EventLoop.scala:83)
  at org.apache.spark.scheduler.DAGScheduler.stop(DAGScheduler.scala:1761)
  at org.apache.spark.SparkContext$$anonfun$stop$8.apply$mcV$sp(SparkContext.scala:1931)
  at org.apache.spark.util.Utils$.tryLogNonFatalError(Utils.scala:1361)
  at org.apache.spark.SparkContext.stop(SparkContext.scala:1930)
  at org.apache.spark.scheduler.cluster.YarnClientSchedulerBackend$MonitorThread.run(YarnClientSchedulerBackend.scala:106)
  at org.apache.spark.scheduler.DAGScheduler.runJob(DAGScheduler.scala:642)
  at org.apache.spark.SparkContext.runJob(SparkContext.scala:2034)
  at org.apache.spark.SparkContext.runJob(SparkContext.scala:2055)
  at org.apache.spark.SparkContext.runJob(SparkContext.scala:2074)
  at org.apache.spark.SparkContext.runJob(SparkContext.scala:2099)
  at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1.apply(RDD.scala:929)
  at org.apache.spark.rdd.RDD$$anonfun$foreachPartition$1.apply(RDD.scala:927)
  at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:151)
  at org.apache.spark.rdd.RDDOperationScope$.withScope(RDDOperationScope.scala:112)
  at org.apache.spark.rdd.RDD.withScope(RDD.scala:363)
  at org.apache.spark.rdd.RDD.foreachPartition(RDD.scala:927)
  at org.apache.spark.sql.Dataset$$anonfun$foreachPartition$1.apply$mcV$sp(Dataset.scala:2675)
  at org.apache.spark.sql.Dataset$$anonfun$foreachPartition$1.apply(Dataset.scala:2675)
  at org.apache.spark.sql.Dataset$$anonfun$foreachPartition$1.apply(Dataset.scala:2675)
  at org.apache.spark.sql.Dataset$$anonfun$withNewRDDExecutionId$1.apply(Dataset.scala:3239)
  at org.apache.spark.sql.execution.SQLExecution$.withNewExecutionId(SQLExecution.scala:77)
  at org.apache.spark.sql.Dataset.withNewRDDExecutionId(Dataset.scala:3235)
  at org.apache.spark.sql.Dataset.foreachPartition(Dataset.scala:2674)
  at com.microsoft.azure.sqldb.spark.connect.DataFrameFunctions.bulkCopyToSqlDB(DataFrameFunctions.scala:72)
  ... 51 elided

你知道这个错误发生的原因吗？您是否对我的设置有任何建议，我是否应该更改任何内容以使流程更快？

Answer 1

您可以通过在yarn-site.xml中设置以下属性来强制YARN忽略它

<property>
    <name>yarn.nodemanager.pmem-check-enabled</name>
    <value>false</value>
</property>

<property>
    <name>yarn.nodemanager.vmem-check-enabled</name>
    <value>false</value>
</property>

希望这可以帮助。

谢谢。